Station Overview Station Location
Station Number MT-SW-2 Latitude 45.6208
Station Name Columbus 7.2 E Longitude -109.104
County Stillwater Elevation (ft) 4075



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 09 1.30 2.13 31 2.13 31 0.00 0 0 12 4 8.0 8 8
Nov 09 0.70 0.27 29 0.27 29 0.00 0 0 2 5 2.1 2 3
Dec 09 0.53 0.21 7 0.21 7 0.00 0 0 4 1 2.9 4 7
Jan 10 0.47 0.63 27 0.63 27 0.00 0 0 3 2 8.8 3 6
Feb 10 0.50 0.47 18 0.47 18 0.00 0 0 6 2 6.0 5 7
March 10 0.92 0.50 31 0.50 31 0.00 0 0 4 3 3.3 4 5
April 10 1.63 0.93 29 0.93 29 0.00 0 0 10 2 1.5 3 1
May 10 2.48 2.48 31 2.48 31 0.00 0 0 16 6 5.6 2 1
June 10 2.07 2.06 30 2.06 30 0.00 0 0 18 2 0.0 0 0
July 10 1.15 1.30 31 1.30 31 0.00 0 0 10 4 0.0 0 0
Aug 10 0.79 1.62 31 1.62 31 0.00 0 0 13 1 0.0 0 0
Sept 10 1.16 0.90 30 0.90 30 0.00 0 0 10 2 0.0 0 0
Water Year Totals: 13.70" 13.50" 325 days 13.50" 325 0.00" 0 days 0 108 days 34 days 38.2" 31 days 38 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
10/1/2009 0.45
10/2/2009 0.00
10/3/2009 0.00
10/4/2009 0.00
10/5/2009 0.72
10/6/2009 0.25
10/7/2009 T
10/8/2009 0.27
10/9/2009 0.06
10/10/2009 0.08
10/11/2009 0.02
10/12/2009 0.04
10/13/2009 T
10/14/2009 0.00
10/15/2009 0.00
10/16/2009 0.00
10/17/2009 0.00
10/18/2009 0.00
10/19/2009 0.20
10/20/2009 0.02
10/21/2009 0.00
10/22/2009 0.00
10/23/2009 0.00
10/24/2009 0.01
10/25/2009 T
10/26/2009 0.00
10/27/2009 0.00
10/28/2009 0.01
10/29/2009 T
10/30/2009 0.00
10/31/2009 0.00
11/1/2009 0.00
11/2/2009 T
11/3/2009 0.00
11/4/2009 0.00
11/5/2009 0.00
11/6/2009 0.00
11/7/2009 T
11/8/2009 0.00
11/9/2009 0.00
11/10/2009 0.00
11/11/2009 0.00
11/12/2009 T
11/13/2009 0.26
11/14/2009 0.00
11/15/2009 0.00
11/16/2009 0.00
11/17/2009 0.00
11/18/2009 0.00
11/19/2009 0.00
11/20/2009 0.00
11/21/2009 T
11/22/2009 T
11/23/2009 0.00
11/24/2009 0.00
11/25/2009 0.00
11/26/2009 0.00
11/27/2009
11/28/2009 0.01
11/29/2009 0.00
11/30/2009 0.00
12/1/2009 0.05
12/2/2009 0.12
12/3/2009 0.01
12/4/2009 0.00
12/5/2009 T
12/6/2009
12/7/2009
12/8/2009
12/9/2009
12/10/2009
12/11/2009 0.00
12/12/2009
12/13/2009
12/14/2009
12/15/2009
12/16/2009
12/17/2009
12/18/2009
12/19/2009
12/20/2009
12/21/2009
12/22/2009
12/23/2009 0.03
12/24/2009
12/25/2009
12/26/2009
12/27/2009
12/28/2009
12/29/2009
12/30/2009
12/31/2009
Day of YearDaily PrcpMultiday Prcp
1/1/2010 T
1/2/2010 0.00
1/3/2010 0.00
1/4/2010 0.00
1/5/2010 0.00
1/6/2010 0.35
1/7/2010 0.00
1/8/2010 0.00
1/9/2010 0.00
1/10/2010 0.00
1/11/2010 0.00
1/12/2010 0.00
1/13/2010 0.00
1/14/2010 0.00
1/15/2010 0.00
1/16/2010 0.00
1/17/2010 0.00
1/18/2010 0.00
1/19/2010 0.00
1/20/2010 0.00
1/21/2010 0.00
1/22/2010 0.00
1/23/2010 0.23
1/24/2010 0.05
1/25/2010 0.00
1/26/2010 0.00
1/27/2010
1/28/2010
1/29/2010
1/30/2010
1/31/2010 T
2/1/2010
2/2/2010
2/3/2010
2/4/2010
2/5/2010
2/6/2010 0.02
2/7/2010 0.05
2/8/2010
2/9/2010
2/10/2010
2/11/2010 0.00
2/12/2010 0.00
2/13/2010 0.00
2/14/2010 0.35
2/15/2010 0.00
2/16/2010 0.01
2/17/2010
2/18/2010
2/19/2010 T
2/20/2010 0.01
2/21/2010 0.03
2/22/2010 T
2/23/2010 0.00
2/24/2010 0.00
2/25/2010 0.00
2/26/2010 0.00
2/27/2010 0.00
2/28/2010 0.00
3/1/2010 0.00
3/2/2010 0.00
3/3/2010 0.00
3/4/2010 0.00
3/5/2010 0.00
3/6/2010 0.00
3/7/2010 0.00
3/8/2010 0.00
3/9/2010 0.00
3/10/2010 T
3/11/2010 T
3/12/2010 0.00
3/13/2010 0.00
3/14/2010 0.00
3/15/2010 0.00
3/16/2010 0.00
3/17/2010 0.00
3/18/2010 0.00
3/19/2010 0.02
3/20/2010 0.05
3/21/2010 0.05
3/22/2010 0.00
3/23/2010 T
3/24/2010 0.00
3/25/2010 0.00
3/26/2010 0.00
3/27/2010 0.00
3/28/2010 0.00
3/29/2010 0.00
3/30/2010 0.00
3/31/2010 0.38
Day of YearDaily PrcpMultiday Prcp
4/1/2010 0.00
4/2/2010 0.05
4/3/2010 0.00
4/4/2010 0.01
4/5/2010 0.00
4/6/2010 0.00
4/7/2010 0.13
4/8/2010 0.00
4/9/2010 0.00
4/10/2010 0.00
4/11/2010
4/12/2010 0.00
4/13/2010 0.20
4/14/2010 0.22
4/15/2010 0.00
4/16/2010 0.00
4/17/2010 0.00
4/18/2010 0.00
4/19/2010 0.00
4/20/2010 0.00
4/21/2010 0.00
4/22/2010 0.00
4/23/2010 T
4/24/2010 0.06
4/25/2010 0.11
4/26/2010 0.02
4/27/2010 0.00
4/28/2010 0.10
4/29/2010 T
4/30/2010 0.03
5/1/2010 0.05
5/2/2010 0.03
5/3/2010 0.04
5/4/2010 0.00
5/5/2010 0.00
5/6/2010 0.23
5/7/2010 0.17
5/8/2010 T
5/9/2010 0.00
5/10/2010 T
5/11/2010 0.02
5/12/2010 0.35
5/13/2010 0.20
5/14/2010 0.00
5/15/2010 0.00
5/16/2010 0.00
5/17/2010 0.00
5/18/2010 0.00
5/19/2010 T
5/20/2010 0.05
5/21/2010 T
5/22/2010 0.00
5/23/2010 0.02
5/24/2010 0.12
5/25/2010 0.90
5/26/2010 0.06
5/27/2010 T
5/28/2010 0.01
5/29/2010 0.22
5/30/2010 0.01
5/31/2010 T
6/1/2010 0.04
6/2/2010 0.15
6/3/2010 T
6/4/2010 0.07
6/5/2010 0.25
6/6/2010 0.01
6/7/2010 0.02
6/8/2010 0.06
6/9/2010 T
6/10/2010 0.02
6/11/2010 0.24
6/12/2010 0.00
6/13/2010 0.04
6/14/2010 0.00
6/15/2010 0.00
6/16/2010 0.17
6/17/2010 0.40
6/18/2010 0.00
6/19/2010 0.00
6/20/2010 0.10
6/21/2010 0.02
6/22/2010 0.00
6/23/2010 0.28
6/24/2010 0.00
6/25/2010 0.00
6/26/2010 0.15
6/27/2010 0.02
6/28/2010 0.00
6/29/2010 0.00
6/30/2010 0.02
Day of YearDaily PrcpMultiday Prcp
7/1/2010 0.07
7/2/2010 0.00
7/3/2010 0.00
7/4/2010 0.00
7/5/2010 0.00
7/6/2010 0.52
7/7/2010 0.02
7/8/2010 0.00
7/9/2010 0.00
7/10/2010 0.00
7/11/2010 0.06
7/12/2010 0.10
7/13/2010 0.05
7/14/2010 0.00
7/15/2010 0.00
7/16/2010 0.00
7/17/2010 0.00
7/18/2010 0.00
7/19/2010 0.05
7/20/2010 T
7/21/2010 0.00
7/22/2010 0.34
7/23/2010 0.06
7/24/2010 0.00
7/25/2010 0.00
7/26/2010 T
7/27/2010 0.03
7/28/2010 T
7/29/2010 T
7/30/2010 0.00
7/31/2010 0.00
8/1/2010 0.22
8/2/2010 0.00
8/3/2010 0.00
8/4/2010 0.00
8/5/2010 0.00
8/6/2010 0.00
8/7/2010 0.08
8/8/2010 0.02
8/9/2010 0.14
8/10/2010 0.12
8/11/2010 0.20
8/12/2010 0.00
8/13/2010 T
8/14/2010 0.10
8/15/2010 0.05
8/16/2010 0.00
8/17/2010 0.00
8/18/2010 0.02
8/19/2010 0.00
8/20/2010 0.00
8/21/2010 0.00
8/22/2010 0.00
8/23/2010 0.18
8/24/2010 0.00
8/25/2010 0.00
8/26/2010 0.00
8/27/2010 0.00
8/28/2010 0.00
8/29/2010 0.18
8/30/2010 0.13
8/31/2010 0.18
9/1/2010 0.02
9/2/2010 0.04
9/3/2010 0.00
9/4/2010 0.00
9/5/2010 T
9/6/2010 0.08
9/7/2010 T
9/8/2010 0.00
9/9/2010 0.02
9/10/2010 0.06
9/11/2010 0.00
9/12/2010 0.00
9/13/2010 0.00
9/14/2010 0.00
9/15/2010 0.24
9/16/2010 0.00
9/17/2010 0.03
9/18/2010 0.33
9/19/2010 0.03
9/20/2010 0.00
9/21/2010 0.00
9/22/2010 0.00
9/23/2010 0.05
9/24/2010 0.00
9/25/2010 0.00
9/26/2010 0.00
9/27/2010 0.00
9/28/2010 0.00
9/29/2010 0.00
9/30/2010 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2009 7:00 AM 0.45 M M M M WooHoo! Finally some precip. It's been 38° since noon yesterday, about 19 straight hours.
10/2/2009 7:00 AM 0.00 0.0 M M M
10/3/2009 7:00 AM 0.00 0.0 M M M Cooling off
10/4/2009 7:00 AM 0.00 0.0 M M M Not Yet
10/5/2009 7:00 AM 0.72 4.5 0.72 4.5 0.72 Rained from mid afternoon until late evening before snow began. The snow accumulated on objects only until 1:45am when accumulation began on ground.
10/6/2009 7:00 AM 0.25 1.0 0.20 3.1 0.69 Most of the new snowfall melted, so the report is an estimate.
10/7/2009 7:00 AM T T T T T Foggy 34° snowing. Snow from earlier this week is gone
10/8/2009 7:00 AM 0.27 1.0 0.13 1.0 0.13 All the trees and plants are frosted this am.
10/9/2009 7:00 AM 0.06 0.3 0.06 1.1 0.11
10/10/2009 7:00 AM 0.08 0.4 0.08 1.2 0.11
10/11/2009 7:00 AM 0.02 0.2 0.02 1.3 0.18
10/12/2009 7:00 AM 0.04 0.2 0.04 1.6 0.20
10/13/2009 7:00 AM T T T 0.9 0.10
10/14/2009 7:00 AM 0.00 0.0 M M M
10/15/2009 7:00 AM 0.00 0.0 M M M
10/16/2009 7:00 AM 0.00 0.0 M M M Fall again!
10/17/2009 7:00 AM 0.00 0.0 M M M
10/18/2009 7:00 AM 0.00 0.0 M M M
10/19/2009 7:00 AM 0.20 M M M M
10/20/2009 7:00 AM 0.02 M M M M Frost this morning
10/21/2009 7:00 AM 0.00 0.0 M M M
10/22/2009 7:00 AM 0.00 0.0 M M M
10/23/2009 7:00 AM 0.00 0.0 M M M
10/24/2009 7:00 AM 0.01 M M M M
10/25/2009 7:00 AM T T T T T
10/26/2009 7:00 AM 0.00 0.0 M M M
10/27/2009 7:00 AM 0.00 0.0 M M M Windy day
10/28/2009 7:00 AM 0.01 0.4 0.01 M M
10/29/2009 7:00 AM T T T M M
10/30/2009 7:00 AM 0.00 0.0 M M M
10/31/2009 7:00 AM 0.00 0.0 M M M
11/1/2009 7:00 AM 0.00 0.0 M M M
11/2/2009 7:00 AM T M M M M
11/3/2009 7:00 AM 0.00 0.0 M M M
11/4/2009 7:00 AM 0.00 0.0 M M M
11/5/2009 7:00 AM 0.00 0.0 M M M
11/6/2009 7:00 AM 0.00 0.0 M M M
11/7/2009 7:00 AM T M M M M Extremely windy day. Gusts to 61 mph, average wind speed for 10 minutes was 47 mph! Average for the 24 hours was 17.8 mph.
11/8/2009 7:00 AM 0.00 0.0 M M M
11/9/2009 7:00 AM 0.00 0.0 M M M
11/10/2009 7:00 AM 0.00 0.0 M M M
11/11/2009 7:00 AM 0.00 0.0 M M M
11/12/2009 7:00 AM T M M M M
11/13/2009 7:00 AM 0.26 2.0 0.26 2.0 0.26
11/14/2009 7:00 AM 0.00 0.0 M 1.8 0.16
11/15/2009 7:00 AM 0.00 0.0 M M M
11/16/2009 7:00 AM 0.00 0.0 M M M
11/17/2009 7:00 AM 0.00 0.0 M M M
11/18/2009 7:00 AM 0.00 0.0 M M M
11/19/2009 7:00 AM 0.00 0.0 M M M
11/20/2009 7:00 AM 0.00 0.0 M M M
11/21/2009 7:00 AM T T T T T
11/22/2009 7:00 AM T T T T T
11/23/2009 7:00 AM 0.00 0.0 M M M
11/24/2009 7:00 AM 0.00 0.0 M M M
11/25/2009 7:00 AM 0.00 0.0 M M M
11/26/2009 7:00 AM 0.00 0.0 M M M
11/28/2009 7:00 AM 0.01 0.1 0.01 0.1 0.01
11/29/2009 7:00 AM 0.00 0.0 M M M
11/30/2009 7:00 AM 0.00 0.0 M M M
12/1/2009 7:00 AM 0.05 1.4 0.05 1.4 0.05
12/2/2009 7:00 AM 0.12 1.0 0.12 1.8 0.16
12/3/2009 7:00 AM 0.01 0.1 0.01 1.5 0.16
12/4/2009 7:00 AM 0.00 0.0 M 1.2 0.15
12/5/2009 7:00 AM T T T 1.0 0.15
12/11/2009 7:00 AM 0.00 0.0 M 2.6 0.32
12/23/2009 7:00 AM 0.03 0.4 0.03 1.1 0.08 Light mist froze the ground before it turned to snow
1/1/2010 7:00 AM T T T 0.7 0.09 Frost on South East side of pine needles. Happy New Year!
1/2/2010 7:00 AM 0.00 0.0 M M M
1/3/2010 7:00 AM 0.00 0.0 M M M
1/4/2010 7:00 AM 0.00 0.0 M M M
1/5/2010 7:00 AM 0.00 0.0 M M M Not Yet!
1/6/2010 7:00 AM 0.35 5.1 0.35 5.1 0.35 It's 3° light winds 7-10 mph. Some blown snow, but not much. Not snowing at 7am. Everything is white again.
1/7/2010 7:00 AM 0.00 0.0 M M M
1/8/2010 7:00 AM 0.00 0.0 M M M
1/9/2010 7:00 AM 0.00 0.0 M M M
1/10/2010 7:00 AM 0.00 0.0 M M M
1/11/2010 7:00 AM 0.00 0.0 M M M
1/12/2010 7:00 AM 0.00 0.0 M M M
1/13/2010 7:00 AM 0.00 0.0 M M M
1/14/2010 7:00 AM 0.00 0.0 M M M
1/15/2010 7:00 AM 0.00 0.0 M M M
1/16/2010 7:00 AM 0.00 0.0 M M M
1/17/2010 7:00 AM 0.00 0.0 M M M
1/18/2010 7:00 AM 0.00 0.0 M M M
1/19/2010 7:00 AM 0.00 0.0 M M M
1/20/2010 7:00 AM 0.00 0.0 M M M
1/21/2010 7:00 AM 0.00 0.0 M M M
1/22/2010 7:00 AM 0.00 0.0 M M M
1/23/2010 7:00 AM 0.23 2.7 0.23 2.7 0.23
1/24/2010 7:00 AM 0.05 1.0 0.05 2.3 0.25
1/25/2010 7:00 AM 0.00 0.0 M 2.0 0.24
1/26/2010 7:00 AM 0.00 0.0 M 1.8 0.22
1/31/2010 7:00 AM T T T M M
2/6/2010 7:00 AM 0.02 T 0.02 M M
2/7/2010 7:00 AM 0.05 0.4 0.05 M M All snow melted yesterday afternoon. Freezing fog again this morning from the East
2/11/2010 7:00 AM 0.00 0.0 M M M
2/12/2010 7:00 AM 0.00 0.0 M M M
2/13/2010 7:00 AM 0.00 0.0 M M M
2/14/2010 7:00 AM 0.35 4.1 0.35 4.1 0.35
2/15/2010 7:00 AM 0.00 0.0 M 2.7 0.35
2/16/2010 7:00 AM 0.01 0.1 0.01 M M
2/19/2010 7:00 AM T T T M M
2/20/2010 7:00 AM 0.01 0.1 0.01 M M
2/21/2010 7:00 AM 0.03 1.3 0.03 M M Very very light, big flakes.
2/22/2010 7:00 AM T T T 3.0 0.45 Ground is covered about 80% with snow. Several South facing hills are bare while fields and hills are snow covered. Gravel roads that are South facing are clear while the rest are snow covered. We've had snow on the fields and hills since the Dec 1st storm.
2/23/2010 7:00 AM 0.00 0.0 M 2.7 M
2/24/2010 7:00 AM 0.00 0.0 M 2.5 M 30° here while it's 19° in Columbus and 500 ft lower. River valley is cool this am.
2/25/2010 7:00 AM 0.00 0.0 M 1.5 M Snow cover on ground is disappearing rapidly. We're down to approximately 60% of the ground covered with snow.
2/26/2010 7:00 AM 0.00 0.0 M 1.2 M Snow pack is very icy. Snow cover is approximately 50%.
2/27/2010 7:00 AM 0.00 0.0 M M M
2/28/2010 7:00 AM 0.00 0.0 M M M
3/1/2010 7:00 AM 0.00 0.0 M 1.5 0.50 Snow cover on ground is about 35%.
3/2/2010 7:00 AM 0.00 0.0 M M M Approx 35% snow covered ground
3/3/2010 7:00 AM 0.00 0.0 M M M Snow has been on the ground since Dec 1. Still about 30% of ground is covered. Muddy gravel roads are clear and drying finally, but still frozen 6-8" down.
3/4/2010 7:00 AM 0.00 0.0 M M M About 15% or less of ground covered with snow
3/5/2010 7:00 AM 0.00 0.0 M M M No snow on ground except on north facing slopes and areas where snow pack was very deep.
3/6/2010 7:00 AM 0.00 0.0 M M M Frost on ground today
3/7/2010 7:00 AM 0.00 0.0 M M M
3/8/2010 7:00 AM 0.00 0.0 M M M No more SWE here
3/9/2010 7:00 AM 0.00 0.0 M M M
3/10/2010 7:00 AM T T T M M Light fog most of yesterday and again this morning
3/11/2010 7:00 AM T T T M M Many of the north facing slopes are now clear of snow. We still have some areas with snow but they are declining rapidly.
3/12/2010 7:00 AM 0.00 0.0 M M M
3/13/2010 7:00 AM 0.00 0.0 M M M
3/14/2010 7:00 AM 0.00 0.0 M M M
3/15/2010 7:00 AM 0.00 0.0 M M M Light frost on vehicles this morning.
3/16/2010 7:00 AM 0.00 0.0 M M M
3/17/2010 7:00 AM 0.00 0.0 M M M
3/18/2010 7:00 AM 0.00 0.0 M M M
3/19/2010 7:00 AM 0.02 0.5 0.02 0.5 0.02 Very light granular snow.
3/20/2010 7:00 AM 0.05 0.8 0.05 0.8 0.05
3/21/2010 7:00 AM 0.05 0.8 0.05 0.8 0.05 It'll be gone in a few hours
3/22/2010 7:00 AM 0.00 0.0 M M M Barely any snow on north facing slopes, less than 1% coverage. No snow any place else.
3/23/2010 7:00 AM T T T T T Very light graupel on ground in morning. Several very light rain showers during day yesterday.
3/24/2010 7:00 AM 0.00 0.0 M M M
3/25/2010 7:00 AM 0.00 0.0 M M M Very foggy. Less than 1/4 mile visibility.
3/26/2010 7:00 AM 0.00 0.0 M M M
3/27/2010 7:00 AM 0.00 0.0 M M M
3/28/2010 7:00 AM 0.00 0.0 M M M
3/29/2010 7:00 AM 0.00 0.0 M M M
3/30/2010 7:00 AM 0.00 0.0 M M M Nothing today, just very windy with gusts to 52 mph. Humidity averaged 35% for the day. Not bad considering we had a red flag warning. We've had far lower humidity. But not good for late March.
3/31/2010 7:00 AM 0.38 1.2 0.38 1.2 0.38 Rain yesterday mixed with an occasional few minutes of snow, providing 0.17" by the evening. Then overnight it was freezing rain that turned to snow. The bottom 1/4" was ice with about 1" of a frozen wet oatmeal like snow cover. Gravel roads are completely clear of snow. It'll all be gone by mid day today and pot holes will abound.
4/1/2010 7:00 AM 0.00 0.0 M M M None in the past 24 hours. It's about to snow and looks like there is snow all around me.
4/2/2010 7:00 AM 0.05 0.2 0.05 T T Snowed off and on all day. Had 0.2" accumulation at one time, but it's all gone.
4/3/2010 7:00 AM 0.00 0.0 M M M
4/4/2010 7:00 AM 0.01 T 0.01 M M Snowed most of the morning, even had a slight accumulation for a while. All gone by mid afternoon. Winds of 30 + mph reduced accumulation in gauge.
4/5/2010 7:00 AM 0.00 0.0 M M M Nice Day!
4/6/2010 7:00 AM 0.00 0.0 M M M
4/7/2010 7:00 AM 0.13 0.1 0.13 T T Sleet turned to snow during the morning snow shower. Shower last all morning and some of the afternoon. Almost no accumulation. That which did accumulate went away within an hour. Max accumulation of 0.1".
4/8/2010 7:00 AM 0.00 0.0 M M M
4/9/2010 7:00 AM 0.00 0.0 M M M Just windy. After wind changed direction from SE to SW at 3:30pm it then increased to 40+ mph after 4:30pm with gusts to 52 mph. Average wind speed since then over 20 mph from the WNW.
4/10/2010 7:00 AM 0.00 0.0 M M M
4/12/2010 7:00 AM 0.00 0.0 M M M
4/13/2010 7:00 AM 0.20 1.2 0.20 1.2 0.20 Very foggy with a slight mist and 31° at report time. Gravel roads are clear, everything else is covered with very wet lumpy oatmeal cookie dough snow.
4/14/2010 7:00 AM 0.22 T 0.22 T 0.22 Precipitation came mainly from snow that fell from morning until mid afternoon. Very warm for snow, very low clouds and very large flakes that melted as soon as they landed.
4/15/2010 7:00 AM 0.00 0.0 M M M
4/16/2010 7:00 AM 0.00 0.0 M M M
4/17/2010 7:00 AM 0.00 0.0 M M M
4/18/2010 7:00 AM 0.00 0.0 M M M
4/19/2010 7:00 AM 0.00 0.0 M M M
4/20/2010 7:00 AM 0.00 0.0 M M M
4/21/2010 7:00 AM 0.00 0.0 M M M
4/22/2010 7:00 AM 0.00 0.0 M M M
4/23/2010 7:00 AM T M M M M
4/24/2010 7:00 AM 0.06 M M M M
4/25/2010 7:00 AM 0.11 T T M M
4/26/2010 7:00 AM 0.02 T T M M
4/27/2010 7:00 AM 0.00 0.0 M M M
4/28/2010 7:00 AM 0.10 M M M M
4/29/2010 7:00 AM T M M M M Some graupel during splash and dash showers yesterday afternoon. It melted on impact with the ground. You could see snow falling, but melting before hitting the ground. It was 48° at the time.
4/30/2010 7:00 AM 0.03 T T T T I mistakenly mounted my rain gauge using a level. We had snow flakes the size of quarters yesterday but it was only 35° so there was no accumulation. The wind was 30 mph, gusting to 52 mph, so the snow/rain was just passing through here to land east of here in Laurel or Billings as rain. Note there is little precipitation collected in a NASCAR wind tunnel. If I had simply laid the rain gauge on the ground and anchored it there we would of had about 0.25-0.30" of precipitation.
5/1/2010 7:00 AM 0.05 M M M M
5/2/2010 7:00 AM 0.03 M M M M Mostly overnight
5/3/2010 7:00 AM 0.04 M M M M
5/4/2010 7:00 AM 0.00 0.0 M M M
5/5/2010 7:00 AM 0.00 0.0 M M M Very windy day. Average wind speed for the day at 29.4 mph with gusts to 74 mph. Observed at least four periods where average wind speed was 40 mph for over 10 minutes. Unbelievable.
5/6/2010 7:00 AM 0.23 4.0 0.23 4.0 0.23 Very heavy wet snow.
5/7/2010 7:00 AM 0.17 1.6 0.17 T T Snow fell most of day yesterday but max depth was at 1 pm and then it began melting as was all gone by this morning, if not sooner. I'm reporting all precipitation fell as snow, because I didn't see it rain.
5/8/2010 7:00 AM T T T M M We had a couple of splash and dash type snow showers yesterday afternoon. A few flakes and then gone. This morning both the inside and the outside of the rain gauge was coated with water droplets the probable result of a very heavy dew. The dew was dripping off the metal roof when I went out to check the rain gauge. To the south of me across the Yellowstone river there were very low thin dark clouds, like a lifting fog. They took about 45 minutes to dissipate.
5/9/2010 7:00 AM 0.00 0.0 M M M
5/10/2010 7:00 AM T M M M M
5/11/2010 7:00 AM 0.02 M M M M
5/12/2010 7:00 AM 0.35 M M M M Nice precip!
5/13/2010 7:00 AM 0.20 M M M M Frost this morning on everything
5/14/2010 7:00 AM 0.00 0.0 M M M
5/15/2010 7:00 AM 0.00 0.0 M M M
5/16/2010 7:00 AM 0.00 0.0 M M M
5/17/2010 7:00 AM 0.00 0.0 M M M
5/18/2010 7:00 AM 0.00 0.0 M M M
5/19/2010 7:00 AM T M M M M A springtime splash and dash that leaked near my location registered a little t here.
5/20/2010 7:00 AM 0.05 M M M M
5/21/2010 7:00 AM T M M M M
5/22/2010 7:00 AM 0.00 0.0 M M M
5/23/2010 7:00 AM 0.02 M M M M
5/24/2010 7:00 AM 0.12 M M M M
5/25/2010 7:00 AM 0.90 M M M M Wow it's wet!!
5/26/2010 7:00 AM 0.06 M M M M
5/27/2010 7:00 AM T M M M M
5/28/2010 7:00 AM 0.01 M M M M Another foggy damp day with a mist falling.
5/29/2010 7:00 AM 0.22 M M M M Very Seattle-like yesterday here in Montana. Overcast, drizzle, foggy, misty, wet everywhere... you get the picture.
5/30/2010 7:00 AM 0.01 M M M M it was actually a pretty nice day outside.
5/31/2010 7:00 AM T M M M M
6/1/2010 7:00 AM 0.04 M M M M
6/2/2010 7:00 AM 0.15 M M M M Fog on Yellowstone River this morning.
6/3/2010 7:00 AM T M M M M
6/4/2010 7:00 AM 0.07 M M M M
6/5/2010 7:00 AM 0.25 M M M M
6/6/2010 7:00 AM 0.01 M M M M
6/7/2010 7:00 AM 0.02 M M M M
6/8/2010 7:00 AM 0.06 M M M M
6/9/2010 7:00 AM T M M M M
6/10/2010 7:00 AM 0.02 M M M M
6/11/2010 7:00 AM 0.24 M M M M Snow on the Beartooth's has changed dramatically this week. Some of the lower parts of the range are now clear of snow.
6/12/2010 7:00 AM 0.00 0.0 M M M
6/13/2010 7:00 AM 0.04 M M M M
6/14/2010 7:00 AM 0.00 0.0 M M M
6/15/2010 7:00 AM 0.00 0.0 M M M
6/16/2010 7:00 AM 0.17 M M M M
6/17/2010 7:00 AM 0.40 M M M M No hail.
6/18/2010 7:00 AM 0.00 0.0 M M M Very windy day with gusts peaking at 60 mph. Several times winds averaged over 40 mph for 10 minutes. No damage, just clean air.
6/19/2010 7:00 AM 0.00 0.0 M M M Another windy day. Any rain dropped here probably landed in North Dakota.
6/20/2010 7:00 AM 0.10 M M M M
6/21/2010 7:00 AM 0.02 M M M M Heavy dew this morning.
6/22/2010 7:00 AM 0.00 0.0 M M M
6/23/2010 7:00 AM 0.28 M M M M
6/24/2010 7:00 AM 0.00 0.0 M M M
6/25/2010 7:00 AM 0.00 0.0 M M M
6/26/2010 7:00 AM 0.15 M M M M Quick measure this AM as it's still raining. Because every drop counts!
6/27/2010 7:00 AM 0.02 M M M M
6/28/2010 7:00 AM 0.00 0.0 M M M
6/29/2010 7:00 AM 0.00 0.0 M M M
6/30/2010 7:00 AM 0.02 M M M M
7/1/2010 7:00 AM 0.07 M M M M
7/2/2010 7:00 AM 0.00 0.0 M M M
7/3/2010 7:00 AM 0.00 0.0 M M M
7/4/2010 7:00 AM 0.00 0.0 M M M
7/5/2010 7:00 AM 0.00 0.0 M M M
7/6/2010 7:00 AM 0.52 M M M M Very wet day!
7/7/2010 7:00 AM 0.02 M M M M Light dew on objects this AM.
7/8/2010 7:00 AM 0.00 0.0 M M M
7/9/2010 7:00 AM 0.00 0.0 M M M
7/10/2010 7:00 AM 0.00 0.0 M M M
7/11/2010 7:00 AM 0.06 M M M M We had a splash and dash between 8 and 9 am that provided 0.01" and then an evening shower provided the 0.05".
7/12/2010 7:00 AM 0.10 M M M M Moderate dew on objects this am.
7/13/2010 7:00 AM 0.05 M M M M No dew this AM.
7/14/2010 7:00 AM 0.00 0.0 M M M
7/15/2010 7:00 AM 0.00 0.0 M M M
7/16/2010 7:00 AM 0.00 0.0 M M M
7/17/2010 7:00 AM 0.00 0.0 M M M Second warmest day of the year, 98.8°
7/18/2010 7:00 AM 0.00 0.0 M M M
7/19/2010 7:00 AM 0.05 M M M M
7/20/2010 7:00 AM T M M M M Rain gauge is dusty dry, but the deck is puddle wet. We either got a trace or the metal roof attracted a very heavy dew that then ran off unto the deck. Vehicles outside have a medium dew on them but the vinyl objects don't have any. Must be an unique combination of temperature and humidity to cause this. Either way we'll take the moisture.
7/21/2010 7:00 AM 0.00 0.0 M M M
7/22/2010 7:00 AM 0.34 M M M M Good moisture yesterday and high, for summer weather. Fog above Yellowstone River
7/23/2010 7:00 AM 0.06 M M M M
7/24/2010 7:00 AM 0.00 0.0 M M M
7/25/2010 7:00 AM 0.00 0.0 M M M
7/26/2010 7:00 AM T M M M M
7/27/2010 7:00 AM 0.03 M M M M Keeping the humidity at good levels.
7/28/2010 7:00 AM T 0.0 M M M Humidity averaged 58% yesterday. Good high value for the end of July.
7/29/2010 7:00 AM T M M M M
7/30/2010 7:00 AM 0.00 0.0 M M M
7/31/2010 7:00 AM 0.00 0.0 M M M
8/1/2010 7:00 AM 0.22 M M M M We had 0.04" in a splash and dash at 4pm while the rest came from evening and overnight showers.
8/2/2010 7:00 AM 0.00 0.0 M M M
8/3/2010 7:00 AM 0.00 0.0 M M M
8/4/2010 7:00 AM 0.00 0.0 M M M
8/5/2010 7:00 AM 0.00 0.0 M M M
8/6/2010 7:00 AM 0.00 0.0 M M M
8/7/2010 7:00 AM 0.08 M M M M
8/8/2010 7:00 AM 0.02 M M M M
8/9/2010 7:00 AM 0.14 M M M M
8/10/2010 7:00 AM 0.12 M M M M
8/11/2010 7:00 AM 0.20 M M M M
8/12/2010 7:00 AM 0.00 0.0 M M M
8/13/2010 7:00 AM T M M M M
8/14/2010 7:00 AM 0.10 M M M M
8/15/2010 7:00 AM 0.05 M M M M
8/16/2010 7:00 AM 0.00 0.0 M M M
8/17/2010 7:00 AM 0.00 0.0 M M M
8/18/2010 7:00 AM 0.02 M M M M
8/19/2010 7:00 AM 0.00 0.0 M M M
8/20/2010 7:00 AM 0.00 0.0 M M M
8/21/2010 7:00 AM 0.00 0.0 M M M
8/22/2010 7:00 AM 0.00 0.0 M M M
8/23/2010 7:00 AM 0.18 M M M M
8/24/2010 7:00 AM 0.00 0.0 M M M
8/25/2010 7:00 AM 0.00 0.0 M M M
8/26/2010 7:00 AM 0.00 0.0 M M M
8/27/2010 7:00 AM 0.00 0.0 M M M Very warm 79°
8/28/2010 7:00 AM 0.00 0.0 M M M Light dew on vinyl objects. Yesterday morning at 7am temp was 79°, the highest I can remember seeing at that hour.
8/29/2010 7:00 AM 0.18 M M M M Light fog in Yellowstone River Valley
8/30/2010 7:00 AM 0.13 M M M M Rain continues this morning. It's 51° with low clouds, drizzling and some thunder.
8/31/2010 7:00 AM 0.18 M M M M No fog this AM, but metal roof is dripping with moisture and the sky is generally clear, with a few thin clouds. Heavy dew, with 89% humidity, temp 43° and dew point is 40°.
9/1/2010 7:00 AM 0.02 M M M M No dew or fog this AM.
9/2/2010 7:00 AM 0.04 M M M M Off and on wet day yesterday. Snow fell in the Beartooth's as their is a white cast to the upper elevations for the first time is a few months. Ski trails at Red Lodge are now evident, snow level is down to around low 8k' there. Generally though snow level is around 9k'. I'd expect it to be gone with a couple of hours of sunlight today.
9/3/2010 7:00 AM 0.00 0.0 M M M Beartooth's are almost barren of snow again. Only above about 11k' is there a dusting.
9/4/2010 7:00 AM 0.00 0.0 M M M
9/5/2010 7:00 AM T M M M M
9/6/2010 7:00 AM 0.08 M M M M
9/7/2010 7:00 AM T M M M M
9/8/2010 7:00 AM 0.00 0.0 M M M
9/9/2010 7:00 AM 0.02 M M M M Low fog in Yellowstone River Valley. No snow in the Beartooths yet.
9/10/2010 7:00 AM 0.06 M M M M Off and on drizzly day. Snow in Beartooths down to 8,500' level in Red Lodge moving up to ~10,500' near Granite Peak
9/11/2010 7:00 AM 0.00 0.0 M M M
9/12/2010 7:00 AM 0.00 0.0 M M M
9/13/2010 7:00 AM 0.00 0.0 M M M
9/14/2010 7:00 AM 0.00 0.0 M M M
9/15/2010 7:00 AM 0.24 M M M M Heavy fog this morning.
9/16/2010 7:00 AM 0.00 0.0 M M M
9/17/2010 7:00 AM 0.03 M M M M Foggy overcast drizzle this AM.
9/18/2010 7:00 AM 0.33 M M M M One of the wettest days of the year. It was foggy and very low overcast all day. Max visibility was about 1.5 miles yesterday and only for a few minutes. Temp was 55° at midnight yesterday and that was the high for Friday. Low was 35° at midnight this morning. A slow steady drop in temp all day.
9/19/2010 7:00 AM 0.03 M M M M Very heavy dew again. Roof is dripping. Cool temps are not good for what's left of tomato plants.
9/20/2010 7:00 AM 0.00 0.0 M M M No fog!
9/21/2010 7:00 AM 0.00 0.0 M M M
9/22/2010 7:00 AM 0.00 0.0 M M M Low overcast and foggy
9/23/2010 7:00 AM 0.05 M M M M Lifting fog with low overcast. Heavy dew.
9/24/2010 7:00 AM 0.00 0.0 M M M
9/25/2010 7:00 AM 0.00 0.0 M M M Wow what a beautiful morning!
9/26/2010 7:00 AM 0.00 0.0 M M M
9/27/2010 7:00 AM 0.00 0.0 M M M
9/28/2010 7:00 AM 0.00 0.0 M M M
9/29/2010 7:00 AM 0.00 0.0 M M M None today
9/30/2010 7:00 AM 0.00 0.0 M M M



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