Station Overview Station Location
Station Number MT-RV-7 Latitude 46.320898
Station Name Corvallis 4.2 ENE Longitude -114.025166
County Ravalli Elevation (ft) 4282



Month 30 Yr Avg by PRISM Total Prcp Sum Days Covered By All Observations Daily Prcp Sum Daily Observation Count Multiday Prcp Sum Days Covered by Multiday Observations Multiday Observation Count Days With Prcp Days With Trace Total Snowfall Days With Snowfall Days With Snow On Ground
Oct 12 0.85 0.90 31 0.90 31 0.00 0 0 9 6 1.6 3 3
Nov 12 0.96 1.86 30 1.86 30 0.00 0 0 9 6 6.7 5 8
Dec 12 0.84 1.17 31 1.17 31 0.00 0 0 14 9 8.7 9 19
Jan 13 0.95 1.29 31 1.29 31 0.00 0 0 10 9 15.1 10 31
Feb 13 0.81 0.42 28 0.42 28 0.00 0 0 8 9 6.2 7 17
March 13 1.15 0.50 31 0.50 31 0.00 0 0 9 9 2.3 6 3
April 13 1.42 0.27 30 0.27 30 0.00 0 0 8 8 1.4 3 1
May 13 2.02 0.84 31 0.84 31 0.00 0 0 13 7 0.1 1 0
June 13 2.28 1.76 30 1.76 30 0.00 0 0 8 7 0.0 0 0
July 13 1.17 0.13 31 0.13 31 0.00 0 0 4 2 0.0 0 0
Aug 13 1.12 0.41 31 0.41 31 0.00 0 0 7 7 0.0 0 0
Sept 13 1.12 2.13 30 2.13 30 0.00 0 0 11 5 0.0 0 0
Water Year Totals: 14.69" 11.68" 365 days 11.68" 365 0.00" 0 days 0 110 days 84 days 42.1" 44 days 82 days



Days in Water Year Cell Color Key
        Daily Observation with Prcp         Missing Day
        Multiday Observation         Daily/Multiday Observation Conflict

Day of Year Daily Prcp Multiday Prcp
10/1/2012 0.00
10/2/2012 0.00
10/3/2012 0.00
10/4/2012 T
10/5/2012 0.00
10/6/2012 0.00
10/7/2012 0.00
10/8/2012 0.00
10/9/2012 0.00
10/10/2012 0.00
10/11/2012 0.00
10/12/2012 0.00
10/13/2012 0.16
10/14/2012 T
10/15/2012 T
10/16/2012 0.26
10/17/2012 0.26
10/18/2012 0.00
10/19/2012 0.00
10/20/2012 0.04
10/21/2012 T
10/22/2012 0.00
10/23/2012 0.10
10/24/2012 0.02
10/25/2012 0.02
10/26/2012 T
10/27/2012 0.00
10/28/2012 0.01
10/29/2012 T
10/30/2012 0.03
10/31/2012 0.00
11/1/2012 0.00
11/2/2012 0.12
11/3/2012 0.00
11/4/2012 0.00
11/5/2012 0.00
11/6/2012 0.00
11/7/2012 0.00
11/8/2012 T
11/9/2012 0.44
11/10/2012 0.12
11/11/2012 0.02
11/12/2012 0.00
11/13/2012 T
11/14/2012 0.00
11/15/2012 T
11/16/2012 0.00
11/17/2012 0.00
11/18/2012 0.03
11/19/2012 0.00
11/20/2012 T
11/21/2012 1.06
11/22/2012 0.05
11/23/2012 0.00
11/24/2012 T
11/25/2012 0.01
11/26/2012 T
11/27/2012 0.00
11/28/2012 0.00
11/29/2012 0.00
11/30/2012 0.01
12/1/2012 0.09
12/2/2012 0.19
12/3/2012 0.38
12/4/2012 T
12/5/2012 0.01
12/6/2012 0.01
12/7/2012 0.02
12/8/2012 0.09
12/9/2012 T
12/10/2012 0.02
12/11/2012 T
12/12/2012 T
12/13/2012 T
12/14/2012 0.00
12/15/2012 T
12/16/2012 0.00
12/17/2012 0.24
12/18/2012 0.05
12/19/2012 0.00
12/20/2012 0.00
12/21/2012 0.00
12/22/2012 0.00
12/23/2012 0.00
12/24/2012 0.04
12/25/2012 0.01
12/26/2012 T
12/27/2012 T
12/28/2012 0.01
12/29/2012 0.00
12/30/2012 0.01
12/31/2012 T
Day of YearDaily PrcpMultiday Prcp
1/1/2013 T
1/2/2013 0.00
1/3/2013 T
1/4/2013 0.00
1/5/2013 0.00
1/6/2013 0.00
1/7/2013 T
1/8/2013 T
1/9/2013 T
1/10/2013 0.52
1/11/2013 0.50
1/12/2013 0.01
1/13/2013 T
1/14/2013 0.01
1/15/2013 0.01
1/16/2013 0.00
1/17/2013 0.00
1/18/2013 0.00
1/19/2013 0.00
1/20/2013 0.00
1/21/2013 0.00
1/22/2013 0.00
1/23/2013 0.00
1/24/2013 T
1/25/2013 T
1/26/2013 0.02
1/27/2013 0.05
1/28/2013 T
1/29/2013 0.04
1/30/2013 0.12
1/31/2013 0.01
2/1/2013 0.00
2/2/2013 0.00
2/3/2013 0.00
2/4/2013 0.00
2/5/2013 T
2/6/2013 0.02
2/7/2013 T
2/8/2013 T
2/9/2013 0.00
2/10/2013 0.04
2/11/2013 0.01
2/12/2013 0.00
2/13/2013 0.01
2/14/2013 0.02
2/15/2013 0.00
2/16/2013 0.00
2/17/2013 0.06
2/18/2013 T
2/19/2013 0.00
2/20/2013 0.17
2/21/2013 T
2/22/2013 T
2/23/2013 0.09
2/24/2013 T
2/25/2013 0.00
2/26/2013 T
2/27/2013 T
2/28/2013 0.00
3/1/2013 T
3/2/2013 0.00
3/3/2013 0.11
3/4/2013 0.01
3/5/2013 0.00
3/6/2013 0.00
3/7/2013 T
3/8/2013 0.00
3/9/2013 0.00
3/10/2013 0.00
3/11/2013 T
3/12/2013 0.00
3/13/2013 T
3/14/2013 0.00
3/15/2013 0.00
3/16/2013 T
3/17/2013 0.13
3/18/2013 0.04
3/19/2013 0.06
3/20/2013 0.00
3/21/2013 0.08
3/22/2013 T
3/23/2013 0.02
3/24/2013 T
3/25/2013 T
3/26/2013 0.00
3/27/2013 0.00
3/28/2013 0.01
3/29/2013 0.04
3/30/2013 T
3/31/2013 0.00
Day of YearDaily PrcpMultiday Prcp
4/1/2013 0.00
4/2/2013 0.00
4/3/2013 0.00
4/4/2013 0.00
4/5/2013 0.02
4/6/2013 T
4/7/2013 0.04
4/8/2013 0.03
4/9/2013 T
4/10/2013 0.00
4/11/2013 0.01
4/12/2013 0.00
4/13/2013 T
4/14/2013 0.01
4/15/2013 0.01
4/16/2013 0.00
4/17/2013 0.00
4/18/2013 0.00
4/19/2013 0.00
4/20/2013 T
4/21/2013 T
4/22/2013 0.09
4/23/2013 T
4/24/2013 T
4/25/2013 0.00
4/26/2013 0.00
4/27/2013 0.00
4/28/2013 0.00
4/29/2013 T
4/30/2013 0.06
5/1/2013 0.01
5/2/2013 0.00
5/3/2013 0.00
5/4/2013 0.09
5/5/2013 T
5/6/2013 0.00
5/7/2013 0.00
5/8/2013 0.00
5/9/2013 0.00
5/10/2013 T
5/11/2013 0.00
5/12/2013 T
5/13/2013 0.00
5/14/2013 0.02
5/15/2013 0.00
5/16/2013 0.06
5/17/2013 0.01
5/18/2013 0.21
5/19/2013 0.03
5/20/2013 T
5/21/2013 0.00
5/22/2013 0.03
5/23/2013 0.13
5/24/2013 0.00
5/25/2013 T
5/26/2013 T
5/27/2013 0.06
5/28/2013 0.17
5/29/2013 0.01
5/30/2013 0.01
5/31/2013 T
6/1/2013 0.00
6/2/2013 0.00
6/3/2013 0.26
6/4/2013 T
6/5/2013 T
6/6/2013 0.00
6/7/2013 0.00
6/8/2013 0.00
6/9/2013 0.00
6/10/2013 0.00
6/11/2013 0.00
6/12/2013 T
6/13/2013 0.28
6/14/2013 0.29
6/15/2013 T
6/16/2013 0.00
6/17/2013 0.00
6/18/2013 T
6/19/2013 T
6/20/2013 0.53
6/21/2013 0.02
6/22/2013 0.00
6/23/2013 0.00
6/24/2013 0.00
6/25/2013 0.25
6/26/2013 T
6/27/2013 0.05
6/28/2013 0.00
6/29/2013 0.00
6/30/2013 0.08
Day of YearDaily PrcpMultiday Prcp
7/1/2013 0.00
7/2/2013 0.00
7/3/2013 0.00
7/4/2013 0.00
7/5/2013 0.00
7/6/2013 T
7/7/2013 0.00
7/8/2013 0.00
7/9/2013 T
7/10/2013 0.00
7/11/2013 0.00
7/12/2013 0.09
7/13/2013 0.01
7/14/2013 0.00
7/15/2013 0.00
7/16/2013 0.00
7/17/2013 0.02
7/18/2013 0.01
7/19/2013 0.00
7/20/2013 0.00
7/21/2013 0.00
7/22/2013 0.00
7/23/2013 0.00
7/24/2013 0.00
7/25/2013 0.00
7/26/2013 0.00
7/27/2013 0.00
7/28/2013 0.00
7/29/2013 0.00
7/30/2013 0.00
7/31/2013 0.00
8/1/2013 T
8/2/2013 0.16
8/3/2013 T
8/4/2013 0.00
8/5/2013 0.00
8/6/2013 T
8/7/2013 0.00
8/8/2013 0.00
8/9/2013 0.00
8/10/2013 0.05
8/11/2013 0.00
8/12/2013 T
8/13/2013 0.00
8/14/2013 T
8/15/2013 0.00
8/16/2013 0.00
8/17/2013 0.00
8/18/2013 T
8/19/2013 0.00
8/20/2013 0.00
8/21/2013 0.00
8/22/2013 0.00
8/23/2013 0.00
8/24/2013 0.02
8/25/2013 0.01
8/26/2013 0.09
8/27/2013 0.00
8/28/2013 T
8/29/2013 0.03
8/30/2013 0.05
8/31/2013 0.00
9/1/2013 0.00
9/2/2013 0.00
9/3/2013 0.00
9/4/2013 0.01
9/5/2013 0.00
9/6/2013 0.40
9/7/2013 0.00
9/8/2013 0.00
9/9/2013 T
9/10/2013 0.05
9/11/2013 0.00
9/12/2013 0.00
9/13/2013 0.00
9/14/2013 0.00
9/15/2013 0.00
9/16/2013 0.12
9/17/2013 0.00
9/18/2013 0.15
9/19/2013 T
9/20/2013 0.00
9/21/2013 0.00
9/22/2013 0.02
9/23/2013 0.11
9/24/2013 T
9/25/2013 0.71
9/26/2013 0.25
9/27/2013 T
9/28/2013 T
9/29/2013 0.07
9/30/2013 0.24



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2012 7:00 AM 0.00 0.0 M M M Sept total precip was 100% below normal: 0.00" actual vs 1.17" average.
10/2/2012 7:00 AM 0.00 0.0 M M M
10/3/2012 7:00 AM 0.00 0.0 M M M
10/4/2012 7:00 AM T M M M M Only a couple of sprinkles from yesterday's fropa, meaning that the consecutive days w/o measurable precip continues on at 43 days, and counting.
10/5/2012 7:00 AM 0.00 0.0 M M M
10/6/2012 7:00 AM 0.00 0.0 M M M
10/7/2012 7:00 AM 0.00 0.0 M M M
10/8/2012 7:00 AM 0.00 0.0 M M M Smoke is back in the Bitterroot, with 2-4 mile visibilities and unhealthy air.
10/9/2012 7:00 AM 0.00 0.0 M M M
10/10/2012 7:00 AM 0.00 0.0 M M M Today marks the 50th consecutive day without measurable precip at this Bitterroot location.
10/11/2012 7:00 AM 0.00 0.0 M M M
10/12/2012 7:00 AM 0.00 0.0 M M M
10/13/2012 7:00 AM 0.16 M M M M Record Report: Between 6-7 am this morning, .16" of rain was observed, the first measurable precip since August 21. This ends the number of consecutive days without measurable precip at 52 through midnight last night, far surpassing the previous regional record of 42 days.
10/14/2012 7:00 AM T M M M M
10/15/2012 7:00 AM T M M M M
10/16/2012 8:00 AM 0.26 M M M M Of the .26" observed, .04" was from yesterday's shower activity, and .22" from this morning's fropa.
10/17/2012 7:00 AM 0.26 T M T M Two-day storm total of .52" liquid, with graupel mixed in at times. Bitterroot Mtns received first accumulating snow.
10/18/2012 7:00 AM 0.00 0.0 M M M
10/19/2012 7:00 AM 0.00 0.0 M M M
10/20/2012 8:00 AM 0.04 M M M M
10/21/2012 7:00 AM T T M 0.0 M
10/22/2012 7:00 AM 0.00 0.0 M M M
10/23/2012 7:00 AM 0.10 1.0 M 1.0 M First measurable snow of the season.
10/24/2012 8:00 AM 0.02 0.1 M 0.5 M
10/25/2012 8:00 AM 0.02 0.5 M 1.0 M
10/26/2012 7:00 AM T T M T M
10/27/2012 8:00 AM 0.00 0.0 M 0.0 M
10/28/2012 7:00 AM 0.01 0.0 M 0.0 M
10/29/2012 6:30 AM T M M M M
10/30/2012 7:00 AM 0.03 0.0 M 0.0 M
10/31/2012 7:00 AM 0.00 0.0 M 0.0 M After 0.00" of precip in Sept, Oct total precip came in at .90" liquid, which was slightly above the .85" average. This included 1.6" of snow.
11/1/2012 7:00 AM 0.00 0.0 M M M
11/2/2012 7:00 AM 0.12 0.0 M M M
11/3/2012 7:00 AM 0.00 0.0 M M M
11/4/2012 7:00 AM 0.00 0.0 M M M
11/5/2012 7:00 AM 0.00 0.0 M M M
11/6/2012 7:00 AM 0.00 0.0 M M M Got a load of gravel for the truck yesterday, and will wash and wax the plow today. It's that time of the year!
11/7/2012 7:00 AM 0.00 0.0 M M M
11/8/2012 7:00 AM T 0.0 M M M Light rain showers yesterday p.m.
11/9/2012 7:00 AM 0.44 4.9 M 5.0 M Heavy snow band dropped 2.3" in 90 minutes from 1-2:30 pm yesterday. Currently: flurries, calm wind, 2 mile vis in haze, and a temp of 26.
11/10/2012 7:00 AM 0.12 1.2 M 6.0 M Picked up another 1.2" snow, bringing the two-day storm total to 6.1" snow, with a .56" SWE. Ample snow cover dropped overnight temp to 13, despite clouds and light snow.
11/11/2012 7:00 AM 0.02 0.3 M 6.0 M Periods of light snow in the morning and the evening. Overnight low of 13.
11/12/2012 7:00 AM 0.00 0.0 M 5.0 M
11/13/2012 7:00 AM T T M 3.0 M
11/14/2012 7:00 AM 0.00 0.0 M 1.5 M
11/15/2012 7:00 AM T 0.0 M 0.5 M
11/16/2012 7:00 AM 0.00 0.0 M T M
11/17/2012 7:00 AM 0.00 0.0 M 0.0 M
11/18/2012 7:00 AM 0.03 0.0 M 0.0 M Strong winds and light precip overnight, with snow level at 5k.
11/19/2012 7:00 AM 0.00 0.0 M M M
11/20/2012 7:00 AM T 0.0 M 0.0 M
11/21/2012 7:00 AM 1.06 0.0 M 0.0 M Steady moderate at times heavy rain throughout the night.
11/22/2012 7:00 AM 0.05 0.2 M 0.1 M Rain and graupel during the day, and light snow overnight. Two-day storm total of 1.11" liquid.
11/23/2012 7:00 AM 0.00 0.0 M M M
11/24/2012 8:00 AM T 0.0 M 0.0 M
11/25/2012 8:00 AM 0.01 0.1 M T M
11/26/2012 7:00 AM T T M 0.0 M
11/27/2012 7:00 AM 0.00 0.0 M 0.0 M
11/28/2012 7:00 AM 0.00 0.0 M M M
11/29/2012 7:00 AM 0.00 0.0 M M M
11/30/2012 7:00 AM 0.01 0.0 M 0.0 M
12/1/2012 7:00 AM 0.09 0.0 M 0.0 M November total precip was nearly 200% of normal: 1.86" actual vs .97" normal. This included 6.7" of snow.
12/2/2012 7:00 AM 0.19 0.0 M 0.0 M Currently, light/mod rain, light S wind, and a temp of 38.
12/3/2012 7:00 AM 0.38 T M 0.0 M Well-defined fropa in the early afternoon, with steady rain transitioning to scattered rain/snow showers. Two-day storm total of .57" liquid.
12/4/2012 7:00 AM T T M 0.0 M
12/5/2012 7:00 AM 0.01 0.0 M 0.0 M
12/6/2012 7:00 AM 0.01 0.0 M 0.0 M
12/7/2012 7:00 AM 0.02 0.2 M T M
12/8/2012 7:00 AM 0.09 1.1 M 1.0 M
12/9/2012 7:00 AM T T M 0.5 M
12/10/2012 7:00 AM 0.02 0.3 M 0.5 M Precip observed for 11 straight days. Sure feels like a La Nina pattern.
12/11/2012 7:00 AM T T M 0.5 M
12/12/2012 7:00 AM T T M T M
12/13/2012 7:00 AM T T M T M
12/14/2012 7:00 AM 0.00 0.0 M T M
12/15/2012 7:00 AM T T M T M
12/16/2012 7:00 AM 0.00 0.0 M T M
12/17/2012 7:00 AM 0.24 5.1 M 5.0 M Most of the 5.1" snow fell as heavy snow between 2-6 am. Currently, light flurries and a temp of 31.
12/18/2012 7:00 AM 0.05 0.6 M 4.0 M Two-day storm total of 5.7" snow, with a SWE of .29" liquid. (Report edited to adjust total snow on ground based on additional observation.)
12/19/2012 7:00 AM 0.00 0.0 M 3.5 M
12/20/2012 7:00 AM 0.00 0.0 M 3.0 M
12/21/2012 7:00 AM 0.00 0.0 M 2.5 M
12/22/2012 7:00 AM 0.00 0.0 M 2.0 M
12/23/2012 7:00 AM 0.00 0.0 M 1.5 M
12/24/2012 7:45 AM 0.04 0.8 M 2.0 M Light snow started at 2 am, with a heavier burst at 5 am, and again at 8 am (after obv time). Both burst followed by brief breaks in the overcast. NE breeze and rising BP suggest colder air is moving in from the east.
12/25/2012 7:00 AM 0.01 0.2 M 1.5 M Pretty as a Christmas card out there. Enjoy!
12/26/2012 7:00 AM T T M 1.5 M
12/27/2012 7:00 AM T T M 1.5 M
12/28/2012 7:00 AM 0.01 0.2 M 1.5 M
12/29/2012 7:00 AM 0.00 0.0 M 1.5 M
12/30/2012 7:50 AM 0.01 0.2 M 1.5 M Very light snow continues w/ 8 mi vis.
12/31/2012 7:00 AM T T M 1.5 M December total precip was above average: 1.17" actual vs 1.01" normal. This included 8.7" of snow.
1/1/2013 7:00 AM T T M 1.5 M Total precip for 2012 was 15% below normal: 11.94" actual vs 14.06" average. A wet start to the year became unusually dry over the summer into the autumn, with a record-breaking 52-day stretch of no measurable precip. Above normal precip returned from October through December. Also included in the 2012 total was 38.6" of snow.
1/2/2013 7:00 AM 0.00 0.0 M 1.5 M
1/3/2013 7:00 AM T T M 1.5 M
1/4/2013 7:00 AM 0.00 0.0 M 1.5 M
1/5/2013 7:00 AM 0.00 0.0 M 1.0 M
1/6/2013 7:00 AM 0.00 0.0 M 1.0 M Sub-freezing temps over the past eight days has led to icing developing on the Bitterroot River.
1/7/2013 7:00 AM T T M 1.0 M
1/8/2013 7:00 AM T T M 1.0 M Light snow shower and 32 at obv time.
1/9/2013 7:00 AM T 0.1 M 0.5 M
1/10/2013 7:00 AM 0.52 4.5 M 4.5 M Wind shift to the N observed at 11 pm with rain changing to snow and squall-like conditions ensuing into the early morning hours. Snow depth is average of several measurements due to blowing snow overnight. Currently, flurries, calm, and a temp of 27.
1/11/2013 7:00 AM 0.50 7.5 M 12.0 M Two-day storm total of 12" snow, with a SWE of 1.02" liquid (includes some rain from Wed. evening).
1/12/2013 7:00 AM 0.01 0.2 M 12.0 M A low this morning of minus one.
1/13/2013 7:00 AM T 0.1 M 12.0 M An overnight low of zero after yesterday's high of 15, with periods of very light snow.
1/14/2013 7:00 AM 0.01 0.1 M 8.0 0.84 Melted core value from 8" snow pack amounted to .84" liquid.
1/15/2013 7:00 AM 0.01 0.3 M 7.5 M
1/16/2013 7:00 AM 0.00 0.0 M 7.0 M
1/17/2013 7:00 AM 0.00 0.0 M 6.5 M
1/18/2013 7:00 AM 0.00 0.0 M 6.5 M
1/19/2013 7:00 AM 0.00 0.0 M 5.5 M Finally made it above freezing for the first time in nine days. The sunny high of 47 was in stark contrast to points north that remained in the 20s.
1/20/2013 7:00 AM 0.00 0.0 M 5.5 M
1/21/2013 7:00 AM 0.00 0.0 M 5.0 0.80 Melted core value from 5" snow pack is .80" liquid. This compares to a week ago, when 8" snow yielded .84" liquid. This suggests that despite temps in the 30s and low 40s, the ground remains frozen solid. Back roads also remain snow covered and very slow to melt.
1/22/2013 7:00 AM 0.00 0.0 M 5.0 M
1/23/2013 7:00 AM 0.00 0.0 M 4.5 M
1/24/2013 7:00 AM T 0.0 M 4.0 M
1/25/2013 7:00 AM T 0.0 M 3.5 M Trace from light flurry Thurs am.
1/26/2013 7:00 AM 0.02 0.0 M 3.0 M
1/27/2013 7:00 AM 0.05 0.1 M 2.5 M
1/28/2013 7:00 AM T T M 2.0 M
1/29/2013 7:00 AM 0.04 0.7 M 2.5 M Currently, light snow, 2 mile vis, light wind, and a temp of 23.
1/30/2013 7:00 AM 0.12 1.5 M 3.5 M
1/31/2013 7:00 AM 0.01 T M 3.0 M January total precip was above normal: 1.29" actual vs .82" average. This included 15.1" of snow. (Report updated to change Trace to 0.01 precip.)
2/1/2013 7:00 AM 0.00 0.0 M 2.0 M
2/2/2013 7:00 AM 0.00 0.0 M 1.5 M Temps finally dipped below frz overnight after staying above the previous 48 hrs. Snow cover is waning.
2/3/2013 7:00 AM 0.00 0.0 M 1.0 M
2/4/2013 7:00 AM 0.00 0.0 M 1.0 M
2/5/2013 7:00 AM T T M 1.0 M
2/6/2013 7:00 AM 0.02 0.2 M 0.5 M
2/7/2013 7:00 AM T T M 0.5 M
2/8/2013 7:00 AM T T M 0.5 M
2/9/2013 7:00 AM 0.00 0.0 M T M
2/10/2013 7:30 AM 0.04 0.6 M 0.5 M Snow shower activity continues this am.
2/11/2013 7:00 AM 0.01 0.2 M 0.5 M
2/12/2013 7:00 AM 0.00 0.0 M T M
2/13/2013 7:30 AM 0.01 T M T M
2/14/2013 7:00 AM 0.02 T M T M Quite the mix yesterday of sun, snow, rain and graupel.
2/15/2013 7:00 AM 0.00 0.0 M 0.0 M Quickly following the snow melt, the lettuce sowed last autumn is up.
2/16/2013 7:00 AM 0.00 0.0 M 0.0 M
2/17/2013 7:00 AM 0.06 0.9 M 1.0 M Snow showers continuing at report time. All this after yesterday's sun and high of 53, which was the highest temp since Nov 20.
2/18/2013 7:00 AM T T M 0.5 M
2/19/2013 7:00 AM 0.00 0.0 M T M
2/20/2013 7:00 AM 0.17 3.4 M 3.5 M Light snow started at 6 pm, with periods of mod/hvy snow through the night. Currently, light snow & fog, 2 mile vis, calm wind and a temp of 26.
2/21/2013 7:00 AM T 0.1 M 1.0 M
2/22/2013 7:00 AM T T M 0.5 M Just a few flakes made it through the down-sloping conditions.
2/23/2013 7:00 AM 0.09 0.8 M 1.0 M Well-behaved front pushed through at 2 am, with a quick shot of snow and wind.
2/24/2013 7:00 AM T T M 0.5 M
2/25/2013 7:00 AM 0.00 0.0 M T M
2/26/2013 7:00 AM T T M T M
2/27/2013 7:00 AM T T M 0.0 M
2/28/2013 7:00 AM 0.00 0.0 M 0.0 M After four consecutive months of above normal precip, Feb total precip was below normal: .42" actual vs .67" avg (liquid).
3/1/2013 7:00 AM T T M 0.0 M
3/2/2013 7:00 AM 0.00 0.0 M 0.0 M
3/3/2013 7:00 AM 0.11 0.0 M 0.0 M Frontal passage just before 7 am, with temp falling to current reading of 31, offering a sharp contrast to yesterday's high of 59.
3/4/2013 7:00 AM 0.01 0.2 M T M
3/5/2013 7:00 AM 0.00 0.0 M 0.0 M
3/6/2013 7:00 AM 0.00 0.0 M 0.0 M
3/7/2013 7:00 AM T T M 0.0 M
3/8/2013 7:00 AM 0.00 0.0 M 0.0 M
3/9/2013 7:00 AM 0.00 0.0 M 0.0 M
3/10/2013 7:00 AM 0.00 0.0 M 0.0 M
3/11/2013 7:00 AM T T M T M Light snow shower overnight, with trace remaining in shaded areas.
3/12/2013 7:00 AM 0.00 0.0 M 0.0 M
3/13/2013 7:00 AM T 0.0 M 0.0 M A balmy morning low of 41, following yesterday's high of 57. March month-to-date precip is only .12" vs .35" normal.
3/14/2013 7:00 AM 0.00 0.0 M 0.0 M
3/15/2013 7:00 AM 0.00 0.0 M 0.0 M A near-record high of 67.
3/16/2013 7:00 AM T 0.0 M 0.0 M
3/17/2013 7:00 AM 0.13 0.3 M 0.5 M Moderate snow has developed over the past hour (post-obv), with current temp of 25 and snow now accumulating on cement (hard) surfaces, and a visibility of 1/2 mile.
3/18/2013 7:00 AM 0.04 0.7 M T M Precip is from Sunday.
3/19/2013 7:00 AM 0.06 0.8 M 1.0 M Snow accumulated overnight.
3/20/2013 7:00 AM 0.00 0.0 M 0.0 M
3/21/2013 7:00 AM 0.08 0.1 M 0.1 M Flurries this morning following yesterday's strong fropa.
3/22/2013 7:00 AM T T M T M Dusting of snow overnight.
3/23/2013 7:00 AM 0.02 0.2 M T M Snow is fine and grainy like sugar, suggesting a weakening dendritic zone.
3/24/2013 7:00 AM T T M T M Light snow since 6 am this morning with a dusting of accumulation. Morning low of 18.
3/25/2013 7:00 AM T T M 0.0 M
3/26/2013 7:00 AM 0.00 0.0 M 0.0 M
3/27/2013 7:00 AM 0.00 0.0 M 0.0 M
3/28/2013 7:00 AM 0.01 0.0 M 0.0 M
3/29/2013 7:00 AM 0.04 0.0 M 0.0 M Good gardening weather.
3/30/2013 7:00 AM T 0.0 M 0.0 M
3/31/2013 7:00 AM 0.00 0.0 M M M March total precip was just over half of normal: .50" actual vs .96" average. This continues the dry trend from last month.
4/1/2013 7:00 AM 0.00 0.0 M 0.0 M Heavy dark cumulus & stratocumulus with cumulugenitus and stratiformis is surely happening somewhere, but not here, not on April Fool's day.
4/2/2013 7:00 AM 0.00 0.0 M 0.0 M
4/3/2013 7:00 AM 0.00 0.0 M 0.0 M
4/4/2013 7:00 AM 0.00 0.0 M 0.0 M
4/5/2013 7:00 AM 0.02 0.0 M 0.0 M
4/6/2013 7:00 AM T 0.0 M 0.0 M
4/7/2013 7:00 AM 0.04 0.0 M 0.0 M Light rain showers continue at obv time, with the snow line at 5k.
4/8/2013 7:00 AM 0.03 T M 0.0 M Weekend storm only produced .07" liquid from showers of rain, snow and graupel.
4/9/2013 7:00 AM T T M 0.0 M A record morning low for April 9 of 13.9 degrees.
4/10/2013 7:00 AM 0.00 0.0 M 0.0 M
4/11/2013 7:00 AM 0.01 0.0 M 0.0 M
4/12/2013 7:00 AM 0.00 0.0 M 0.0 M
4/13/2013 7:00 AM T T M 0.0 M Temp has dropped three degress over the past 45 minutes to 31, with a light graupel shower.
4/14/2013 7:00 AM 0.01 0.2 M T M
4/15/2013 7:00 AM 0.01 0.2 M T M
4/16/2013 7:00 AM 0.00 0.0 M 0.0 M A morning low of 14.6, surpassing the existing record lows of 20 for April 16 at both Missoula and Hamilton.
4/17/2013 7:00 AM 0.00 0.0 M 0.0 M A morning low of 14.2 F, representing the third mid-teen reading over the last nine days, with each surpassing morning low records at nearby NWS sites.
4/18/2013 7:00 AM 0.00 0.0 M 0.0 M
4/19/2013 7:00 AM 0.00 0.0 M 0.0 M
4/20/2013 7:00 AM T 0.0 M 0.0 M
4/21/2013 7:00 AM T 0.0 M 0.0 M
4/22/2013 7:00 AM 0.09 1.0 M 1.0 M Ample sun and 59 on Sunday, until the frontal passage at 7 pm, with snow and 16 overnight.
4/23/2013 7:00 AM T T M 0.0 M
4/24/2013 7:00 AM T T M 0.0 M
4/25/2013 7:00 AM 0.00 0.0 M 0.0 M
4/26/2013 7:00 AM 0.00 0.0 M M M This part of the region is well into its third consecutive month of well below precip values. Only 1.13" liquid precip has fallen since Feb 1, which is only 44% of the 2.65" average. April-to-date precip has only been .21", or 20% of the 1.02" average. Soil conditions are powdery, with dry and stunted vegetation. Given all this, anticipated high winds on Saturday could create critical fire conditions.
4/27/2013 7:00 AM 0.00 0.0 M 0.0 M
4/28/2013 7:00 AM 0.00 0.0 M M M Blowing dust, including brownish plumes with reduced visibility, were observed during yesterday's wind event.
4/29/2013 7:00 AM T 0.0 M 0.0 M
4/30/2013 7:00 AM 0.06 T M 0.0 M Total April liquid precip was .27", just 23% of the 1.18" norm. This extends the ongoing precip deficit to three months. Temps also continue below avg, with a low this morning of 25.
5/1/2013 7:00 AM 0.01 0.1 M T M A coating of snow, and a morning low of 23.8 degrees.
5/2/2013 7:00 AM 0.00 0.0 M M M
5/3/2013 7:00 AM 0.00 0.0 M M M
5/4/2013 7:00 AM 0.09 M M M M Some much-needed rain.
5/5/2013 7:00 AM T 0.0 M M M Just a few sprinkles and windy yesterday. Sunny and calm this morning...a good day to plant a tree.
5/6/2013 7:00 AM 0.00 0.0 M 0.0 M
5/7/2013 7:00 AM 0.00 0.0 M M M
5/8/2013 7:00 AM 0.00 0.0 M M M Gusty winds yesterday afternoon, with smoke and haze.
5/9/2013 7:00 AM 0.00 0.0 M M M
5/10/2013 7:00 AM T 0.0 M M M Rumbles of thunder yesterday afternoon into the overnight hours, but alas only a sprinkle observed.
5/11/2013 7:00 AM 0.00 0.0 M M M
5/12/2013 7:00 AM T 0.0 M M M A brief sprinkle with gusty winds yesterday afternoon.
5/13/2013 7:00 AM 0.00 0.0 M M M A strong t-storm passed over the southern Bitterroot late last night, with vivid lightning and gusty outflow winds. Rain, if any, did not make it this far north.
5/14/2013 7:00 AM 0.02 0.0 M M M With only .12" thus far, May is following the much-below avg precip trend of the previous three months.
5/15/2013 7:00 AM 0.00 0.0 M M M
5/16/2013 7:00 AM 0.06 0.0 M M M Rain!
5/17/2013 7:00 AM 0.01 0.0 M M M Light rain was redeveloping at obv time.
5/18/2013 7:00 AM 0.21 M M M M The .21" liquid may seem modest, but it's been over four months since there was a larger 24-hr total, which occurred Jan 11 with .50" liquid that fell as 7.5" snow.
5/19/2013 7:00 AM 0.03 0.0 M M M
5/20/2013 7:00 AM T 0.0 M M M
5/21/2013 7:00 AM 0.00 0.0 M M M
5/22/2013 7:00 AM 0.03 0.0 M M M Afternoon sprinkles followed by overnight showers.
5/23/2013 7:00 AM 0.13 0.0 M M M Report delayed due to computer problem.
5/24/2013 7:00 AM 0.00 0.0 M M M Lots of wind yesterday evening, but no rain. Will be watching the temps tonight for possible freeze impacts.
5/25/2013 7:00 AM T 0.0 M M M A morning low of 34.
5/26/2013 7:00 AM T 0.0 M M M
5/27/2013 7:00 AM 0.06 0.0 M M M Scattered light showers throughout the period.
5/28/2013 7:00 AM 0.17 0.0 M M M A steady light rain through most of the night.
5/29/2013 7:00 AM 0.01 0.0 M M M
5/30/2013 7:00 AM 0.01 0.0 M M M
5/31/2013 7:00 AM T 0.0 M M M May total precip was .84" liquid, much below the 1.92" norm. This represents the fourth consecutive month with below average precip, with a YTD actual of 3.32" vs the 5.69" norm.
6/1/2013 7:00 AM 0.00 0.0 M M M
6/2/2013 7:00 AM 0.00 0.0 M M M
6/3/2013 7:00 AM 0.26 0.0 M M M Rain relief.
6/4/2013 7:00 AM T 0.0 M M M Lingering sprinkles yesterday, dry but cloudy this a.m.
6/5/2013 7:00 AM T 0.0 M M M
6/6/2013 7:00 AM 0.00 0.0 M M M
6/7/2013 7:00 AM 0.00 0.0 M M M
6/8/2013 7:00 AM 0.00 0.0 M M M
6/9/2013 7:00 AM 0.00 0.0 M M M
6/10/2013 7:00 AM 0.00 0.0 M M M Quite windy late yesterday, calm this morning.
6/11/2013 7:00 AM 0.00 0.0 M M M Gusty winds once again late yesterday, which when combined with the low RH, are drying native vegetation.
6/12/2013 7:00 AM T 0.0 M M M Just a few drops for a trace amount.
6/13/2013 7:00 AM 0.28 0.0 M M M An early morning rumble of thunder followed by a steady band of moderate rain.
6/14/2013 7:00 AM 0.29 0.0 M M M Two-day storm total of .57" liquid.
6/15/2013 7:00 AM T 0.0 M M M
6/16/2013 7:00 AM 0.00 0.0 M M M
6/17/2013 7:00 AM 0.00 0.0 M M M
6/18/2013 7:00 AM T 0.0 M M M
6/19/2013 7:00 AM T 0.0 M M M
6/20/2013 7:00 AM 0.53 0.0 M M M Yet another soaking rain, bringing the June running total precip to 1.36" liquid.
6/21/2013 7:00 AM 0.02 0.0 M M M
6/22/2013 7:00 AM 0.00 0.0 M M M
6/23/2013 7:00 AM 0.00 0.0 M M M
6/24/2013 7:00 AM 0.00 0.0 M M M
6/25/2013 7:00 AM 0.25 M M M M Periodic showers from the afternoon into this morning.
6/26/2013 7:00 AM T 0.0 M M M
6/27/2013 7:00 AM 0.05 M M M M
6/28/2013 7:00 AM 0.00 0.0 M M M
6/29/2013 7:00 AM 0.00 0.0 M M M
6/30/2013 7:00 AM 0.08 M M M M A brief 3/8" hail storm just after 8 pm, with hail report sent in.
7/1/2013 7:00 AM 0.00 0.0 M M M June total precip was 88% of normal: 1.76" actual vs 2.01" normal. At the midway point for 2013, year-to-date precip was only 66% of normal: 5.08" actual vs 7.78" normal. Monthly total precip has remained below to much below normal since February. The drought outlook indicates drought development is likely for this region during July.
7/2/2013 7:00 AM 0.00 0.0 M M M A high Monday of 94.
7/3/2013 7:00 AM 0.00 0.0 M M M A high of 95 yesterday, followed by a very warm morning low of 70.
7/4/2013 7:00 AM 0.00 0.0 M M M Hottest day yet on Wednesday, with a high of 97.
7/5/2013 7:00 AM 0.00 0.0 M M M
7/6/2013 7:00 AM T M M M M Just a sprinkle yesterday p.m.
7/7/2013 7:00 AM 0.00 0.0 M M M Seventh consecutive day without measurable precip.
7/8/2013 7:00 AM 0.00 0.0 M M M Nearby thunder this morning, but no rain here.
7/9/2013 7:00 AM T M M M M A few big drops from nearby convective activity.
7/10/2013 7:00 AM 0.00 0.0 M M M Day ten without any measurable precip.
7/11/2013 7:00 AM 0.00 0.0 M M M
7/12/2013 7:00 AM 0.09 M M M M First measurable precip since June 30.
7/13/2013 7:00 AM 0.01 M M M M A fire on a Sapphire ridge yesterday afternoon prompted a quick response, including bucket drops, which proved effective in extinguishing it. Lightning had been observed in that area the previous evening.
7/14/2013 7:00 AM 0.00 0.0 M M M
7/15/2013 7:00 AM 0.00 0.0 M M M
7/16/2013 7:00 AM 0.00 0.0 M M M
7/17/2013 7:00 AM 0.02 M M M M
7/18/2013 7:00 AM 0.01 M M M M July precip thus far is .13", well below the m-t-d avg of .60".
7/19/2013 7:00 AM 0.00 0.0 M M M Smoke on the western horizon late yesterday west of St Mary's peak suggested fire activity in the Selway Wilderness. A plume was visible on radar, but nothing reported on InciWeb as of this morning. Past fires in this region have proved problematic for air quality downstream in the Bitterroot and Missoula valleys.
7/20/2013 7:00 AM 0.00 0.0 M M M
7/21/2013 7:00 AM 0.00 0.0 M M M
7/22/2013 7:00 AM 0.00 0.0 M M M A significant smoke column was visible yesterday afternoon from the Gold Pan wildfire, burning approx 60 air miles to the SW in the Frank Church Wilderness.
7/23/2013 7:00 AM 0.00 0.0 M M M
7/24/2013 7:00 AM 0.00 0.0 M M M
7/25/2013 7:00 AM 0.00 0.0 M M M
7/26/2013 7:00 AM 0.00 0.0 M M M
7/27/2013 7:00 AM 0.00 0.0 M M M Warmest temp of the summer Friday at 97. Smoke poured into the valley late in the day, presumably from the California Point fire in the Nez Perce-Clearwater NF. Details are lacking with the fire not being tracked on InciWeb, though the smoke was enough to reduce visibilities to 6-8 miles in the Bitterroot Valley.
7/28/2013 7:00 AM 0.00 0.0 M M M An active weather day Saturday with the high temp of 93 reached early afternoon, followed by cooling winds and then moderate smoke, with 4-6 mile vis.
7/29/2013 7:00 AM 0.00 0.0 M M M
7/30/2013 7:00 AM 0.00 0.0 M M M
7/31/2013 7:00 AM 0.00 0.0 M M M July total precip was .13", just 14 percent of the .96" normal value. July also represented the sixth consecutive month of below to much below precip.
8/1/2013 7:00 AM T M M M M
8/2/2013 7:00 AM 0.16 M M M M Weren't much, but yesterday's rain total surpassed July's cumulative total.
8/3/2013 7:00 AM T M M M M
8/4/2013 7:00 AM 0.00 0.0 M M M
8/5/2013 7:00 AM 0.00 0.0 M M M
8/6/2013 7:00 AM T M M M M
8/7/2013 7:00 AM 0.00 0.0 M M M
8/8/2013 7:00 AM 0.00 0.0 M M M
8/9/2013 7:00 AM 0.00 0.0 M M M
8/10/2013 7:00 AM 0.05 M M M M Strong t-storm activity from 6-7:30 pm, with gusty outflow winds, brief rain, and several lightning strikes observed, mainly in the higher terrain.
8/11/2013 7:00 AM 0.00 0.0 M M M Heavy smoke moved into the Bitterroot Valley early last night on downsloping winds. The smoke continues this morning, with 2-4 mile visibility and calm winds.
8/12/2013 7:00 AM T M M M M Smoke abated somewhat overnight, with current visibility at 8 miles.
8/13/2013 7:00 AM 0.00 0.0 M M M
8/14/2013 7:00 AM T M M M M
8/15/2013 7:00 AM 0.00 0.0 M M M
8/16/2013 7:00 AM 0.00 0.0 M M M An afternoon high of 95, with smoke rolling in from Idaho fires (including the low-profile, yet active Selway Wilderness fires).
8/17/2013 7:00 AM 0.00 0.0 M M M Based on last night's incident report, there is growing concern that the Gold Pan wilderness fire, now at 21k+ acres, may encroach on the Bitterroot Valley in coming days.
8/18/2013 7:00 AM T M M M M Just a brief shower overnight.
8/19/2013 7:00 AM 0.00 0.0 M M M
8/20/2013 7:00 AM 0.00 0.0 M M M In just a matter of hours yesterday afternoon gusty westerly winds blew two lightning-sparked fires west of Lolo from 60 to 5,000 acres. Large plumes were visible from 50 miles away, and several strutures including homes were reported lost. No injuries reported as of this morning.
8/21/2013 7:00 AM 0.00 0.0 M M M Active fire weather yesterday afternoon with plumes visible to the north at the Lolo Creek Complex, and to the south at the Gold Pan Complex. Moderate smoke moved in overnight, with current visibilities at 4-6 miles.
8/22/2013 7:00 AM 0.00 0.0 M M M Moderate smoke eased somewhat late yesterday, with current visibility at 6-8 miles. Now into 12th consecutive day without any measurable precip.
8/23/2013 7:00 AM 0.00 0.0 M M M Trying to remember how many years it's been since we've had a summer with above-average precip...
8/24/2013 7:00 AM 0.02 M M M M The brief shower yesterday morning brings the running August precip amount to .23" vs the .85" norm.
8/25/2013 7:00 AM 0.01 M M M M Isolated t-cell passed through in the early evening, producing a brief shower, a nearby lightning stike, and gusty outflow winds.
8/26/2013 7:00 AM 0.09 M M M M Another round of late-day convective activity.
8/27/2013 7:00 AM 0.00 0.0 M M M Smoke and haze on the increase, with visibilities at 6-8 miles.
8/28/2013 7:00 AM T M M M M
8/29/2013 7:00 AM 0.03 M M M M A passing shower at mid-morning.
8/30/2013 7:00 AM 0.05 M M M M Good to see some spots getting ample rain; not so much here.
8/31/2013 7:00 AM 0.00 0.0 M M M Total August precip was much-below average: .41" actual vs 1.15" normal. This marks the seventh consecutive month of below to much-below precip.
9/1/2013 7:00 AM 0.00 0.0 M M M A smoke column was visible on the Gold Pan wildfire yesterday afternoon, with additional smoke pouring into the valley from the Selway fires burning west of St. Mary's peak.
9/2/2013 7:00 AM 0.00 0.0 M M M
9/3/2013 7:00 AM 0.00 0.0 M M M
9/4/2013 7:00 AM 0.01 M M M M It's been 33 days since this site has experienced a wetting rain of .10" or above.
9/5/2013 7:00 AM 0.00 0.0 M M M Active t-storm activity after midnight stayed west in the Bitterroot high terrain.
9/6/2013 7:00 AM 0.40 M M M M Rain accumulated in three phases: .08" early afternoon; .27" late afternoon; .05" overnight. This rain event ended the number of consecutive days without a wetting rain at 35.
9/7/2013 7:00 AM 0.00 0.0 M M M Vivid blue skies and clean air made for a great day.
9/8/2013 7:00 AM 0.00 0.0 M M M
9/9/2013 7:00 AM T M M M M Sprinkles yesterday afternoon, with a rain shower in progress at 7 a.m. obv time.
9/10/2013 7:00 AM 0.05 M M M M Precip is from yesterday morning.
9/11/2013 7:00 AM 0.00 0.0 M M M
9/12/2013 7:00 AM 0.00 0.0 M M M
9/13/2013 7:00 AM 0.00 0.0 M M M
9/14/2013 7:00 AM 0.00 0.0 M M M
9/15/2013 7:00 AM 0.00 0.0 M M M
9/16/2013 7:00 AM 0.12 M M M M Rain came as overnight showers, with c-t-g lightning observed.
9/17/2013 7:00 AM 0.00 0.0 M M M
9/18/2013 7:00 AM 0.15 M M M M A brief period of pea-sized hail in the early evening, as noted in hail report.
9/19/2013 7:00 AM T M M M M
9/20/2013 7:00 AM 0.00 0.0 M M M
9/21/2013 7:00 AM 0.00 0.0 M M M
9/22/2013 7:30 AM 0.02 M M M M
9/23/2013 7:00 AM 0.11 M M M M Periods of light rain throughout the period.
9/24/2013 7:00 AM T M M M M High terrain clouds parted at mid-morning to show the season's first snow on the Bitterroot peaks, with a lot more on the way.
9/25/2013 7:00 AM 0.71 M M M M A steady, soaking rain yielded .38" during the day, with the remaining .33" occurring as overnight showers.
9/26/2013 7:00 AM 0.25 M M M M Two-day storm total of .96" liquid.
9/27/2013 7:00 AM T M M M M Scattered frost, with a morning low of 30.1 degrees.
9/28/2013 8:00 AM T M M M M
9/29/2013 7:30 AM 0.07 M M M M A brief period of very intense winds just after 7 am this morning.
9/30/2013 7:30 AM 0.24 M M M M Squall-like conditons began at 6:20 am and lasted 15 minutes with fropa. Power was out for six hours from noon on yesterday. Looking forward to posting Sept precip with tomorrow's report.



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes



Observation Date Observation Time Notes Largest Stone Size Average Stone Size Smallest Stone Size Stone Consistency Duration Minutes Durration Accuracy Damage Timing More Rain than Hail Hail Started Largest Hail Started Angle of Impact Number of Stones on Pad Distance Between Stones on Pad Depth of Stones on Ground
6/29/2013 8:03 PM Quick moving cell, with .03 approx liquid precip. 3/8" 3/8" 1/4" Pea Size White Ice 5 2min no damage True Before rain Same time as smaller hail
9/17/2013 7:26 PM A glancing blow from high-based cell east over the Sapphires. 3/8" 1/4" Pea Size 1/4" Pea Size White Ice 2 1min no damage False After rain After smaller hail