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 10 1.30 0.83 31 0.83 31 0.00 0 0 8 1 0.0 0 0
Nov 10 0.70 1.98 30 1.98 30 0.00 0 0 13 1 17.6 9 6
Dec 10 0.53 0.67 31 0.67 31 0.00 0 0 6 4 8.6 6 1
Jan 11 0.47 0.25 31 0.25 31 0.00 0 0 5 6 3.3 5 4
Feb 11 0.50 0.47 28 0.47 28 0.00 0 0 9 0 6.9 8 5
March 11 0.92 1.22 30 1.22 30 0.00 0 0 8 4 15.7 6 8
April 11 1.63 1.85 30 1.85 30 0.00 0 0 12 5 14.0 7 1
May 11 2.48 7.76 31 7.76 31 0.00 0 0 19 2 0.0 0 0
June 11 2.07 1.46 30 1.46 30 0.00 0 0 10 1 0.0 0 0
July 11 1.15 0.63 30 0.63 30 0.00 0 0 7 5 0.0 0 0
Aug 11 0.79 0.62 31 0.62 31 0.00 0 0 12 3 0.0 0 0
Sept 11 1.16 0.14 30 0.14 30 0.00 0 0 5 2 0.0 0 0
Water Year Totals: 13.70" 17.88" 363 days 17.88" 363 0.00" 0 days 0 114 days 34 days 66.1" 41 days 25 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
10/1/2010 0.00
10/2/2010 0.00
10/3/2010 0.00
10/4/2010 0.00
10/5/2010 T
10/6/2010 0.02
10/7/2010 0.00
10/8/2010 0.00
10/9/2010 0.34
10/10/2010 0.12
10/11/2010 0.00
10/12/2010 0.07
10/13/2010 0.00
10/14/2010 0.00
10/15/2010 0.00
10/16/2010 0.00
10/17/2010 0.06
10/18/2010 0.02
10/19/2010 0.00
10/20/2010 0.00
10/21/2010 0.00
10/22/2010 0.00
10/23/2010 0.00
10/24/2010 0.00
10/25/2010 0.19
10/26/2010 0.00
10/27/2010 0.01
10/28/2010 0.00
10/29/2010 0.00
10/30/2010 0.00
10/31/2010 0.00
11/1/2010 0.05
11/2/2010 0.00
11/3/2010 0.00
11/4/2010 0.00
11/5/2010 0.00
11/6/2010 0.00
11/7/2010 0.00
11/8/2010 0.00
11/9/2010 0.48
11/10/2010 0.01
11/11/2010 0.00
11/12/2010 0.00
11/13/2010 0.00
11/14/2010 0.00
11/15/2010 0.02
11/16/2010 0.03
11/17/2010 0.02
11/18/2010 0.00
11/19/2010 0.35
11/20/2010 0.39
11/21/2010 0.32
11/22/2010 0.03
11/23/2010 0.03
11/24/2010 0.05
11/25/2010 0.00
11/26/2010 0.00
11/27/2010 0.00
11/28/2010 T
11/29/2010 0.20
11/30/2010 0.00
12/1/2010 0.00
12/2/2010 0.00
12/3/2010 0.11
12/4/2010 T
12/5/2010 T
12/6/2010 0.00
12/7/2010 0.00
12/8/2010 0.00
12/9/2010 0.00
12/10/2010 0.00
12/11/2010 T
12/12/2010 0.00
12/13/2010 0.00
12/14/2010 0.00
12/15/2010 T
12/16/2010 0.00
12/17/2010 0.00
12/18/2010 0.01
12/19/2010 0.04
12/20/2010 0.18
12/21/2010 0.00
12/22/2010 0.00
12/23/2010 0.00
12/24/2010 0.00
12/25/2010 0.00
12/26/2010 0.00
12/27/2010 0.00
12/28/2010 0.00
12/29/2010 0.00
12/30/2010 0.15
12/31/2010 0.18
Day of YearDaily PrcpMultiday Prcp
1/1/2011 0.00
1/2/2011 0.00
1/3/2011 0.00
1/4/2011 0.00
1/5/2011 0.00
1/6/2011 0.00
1/7/2011 T
1/8/2011 T
1/9/2011 T
1/10/2011 0.00
1/11/2011 0.00
1/12/2011 0.00
1/13/2011 0.00
1/14/2011 0.00
1/15/2011 0.00
1/16/2011 0.00
1/17/2011 T
1/18/2011 T
1/19/2011 0.16
1/20/2011 0.01
1/21/2011 0.00
1/22/2011 0.00
1/23/2011 T
1/24/2011 0.01
1/25/2011 0.00
1/26/2011 0.00
1/27/2011 0.00
1/28/2011 0.00
1/29/2011 0.00
1/30/2011 0.01
1/31/2011 0.06
2/1/2011 0.00
2/2/2011 0.00
2/3/2011 0.00
2/4/2011 0.00
2/5/2011 0.00
2/6/2011 0.04
2/7/2011 0.07
2/8/2011 0.06
2/9/2011 0.00
2/10/2011 0.00
2/11/2011 0.00
2/12/2011 0.00
2/13/2011 0.00
2/14/2011 0.00
2/15/2011 0.00
2/16/2011 0.00
2/17/2011 0.00
2/18/2011 0.00
2/19/2011 0.01
2/20/2011 0.07
2/21/2011 0.13
2/22/2011 0.00
2/23/2011 0.01
2/24/2011 0.07
2/25/2011 0.01
2/26/2011 0.00
2/27/2011 0.00
2/28/2011 0.00
3/1/2011 0.00
3/2/2011 T
3/3/2011 0.00
3/4/2011 0.15
3/5/2011 0.00
3/6/2011 0.00
3/7/2011
3/8/2011 0.00
3/9/2011 0.00
3/10/2011 0.00
3/11/2011 0.06
3/12/2011 0.00
3/13/2011 0.00
3/14/2011 0.00
3/15/2011 T
3/16/2011 0.08
3/17/2011 0.09
3/18/2011 T
3/19/2011 0.00
3/20/2011 T
3/21/2011 0.00
3/22/2011 0.28
3/23/2011 0.49
3/24/2011 0.00
3/25/2011 0.00
3/26/2011 0.00
3/27/2011 0.00
3/28/2011 0.05
3/29/2011 0.02
3/30/2011 0.00
3/31/2011 0.00
Day of YearDaily PrcpMultiday Prcp
4/1/2011 T
4/2/2011 T
4/3/2011 0.02
4/4/2011 0.03
4/5/2011 0.00
4/6/2011 0.00
4/7/2011 0.00
4/8/2011 0.62
4/9/2011 0.08
4/10/2011 0.00
4/11/2011 0.00
4/12/2011 0.00
4/13/2011 0.00
4/14/2011 T
4/15/2011 0.00
4/16/2011 T
4/17/2011 0.16
4/18/2011 0.21
4/19/2011 0.34
4/20/2011 0.20
4/21/2011 0.00
4/22/2011 0.05
4/23/2011 T
4/24/2011 0.00
4/25/2011 0.00
4/26/2011 0.00
4/27/2011 0.05
4/28/2011 0.00
4/29/2011 0.05
4/30/2011 0.04
5/1/2011 T
5/2/2011 0.03
5/3/2011 0.00
5/4/2011 0.00
5/5/2011 0.00
5/6/2011 0.00
5/7/2011 0.01
5/8/2011 0.12
5/9/2011 0.51
5/10/2011 1.00
5/11/2011 0.21
5/12/2011 0.00
5/13/2011 0.00
5/14/2011 0.00
5/15/2011 0.00
5/16/2011 0.00
5/17/2011 0.09
5/18/2011 0.00
5/19/2011 T
5/20/2011 1.15
5/21/2011 2.01
5/22/2011 0.16
5/23/2011 0.01
5/24/2011 0.40
5/25/2011 0.97
5/26/2011 0.04
5/27/2011 0.01
5/28/2011 0.02
5/29/2011 0.04
5/30/2011 0.67
5/31/2011 0.31
6/1/2011 0.00
6/2/2011 0.00
6/3/2011 0.00
6/4/2011 0.00
6/5/2011 0.00
6/6/2011 0.00
6/7/2011 0.06
6/8/2011 0.10
6/9/2011 0.46
6/10/2011 0.06
6/11/2011 0.00
6/12/2011 0.01
6/13/2011 0.00
6/14/2011 T
6/15/2011 0.00
6/16/2011 0.00
6/17/2011 0.01
6/18/2011 0.00
6/19/2011 0.00
6/20/2011 0.58
6/21/2011 0.00
6/22/2011 0.00
6/23/2011 0.00
6/24/2011 0.05
6/25/2011 0.07
6/26/2011 0.00
6/27/2011 0.06
6/28/2011 0.00
6/29/2011 0.00
6/30/2011 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2011 0.00
7/2/2011 0.00
7/3/2011 0.00
7/4/2011 T
7/5/2011 0.00
7/6/2011 0.00
7/7/2011 0.04
7/8/2011 0.06
7/9/2011 0.22
7/10/2011 0.00
7/11/2011 T
7/12/2011 0.01
7/13/2011 T
7/14/2011 T
7/15/2011 0.23
7/16/2011 0.00
7/17/2011 0.00
7/18/2011 0.00
7/19/2011 0.00
7/20/2011 0.00
7/21/2011 0.00
7/22/2011
7/23/2011 T
7/24/2011 0.00
7/25/2011 0.00
7/26/2011 0.00
7/27/2011 0.03
7/28/2011 0.04
7/29/2011 0.00
7/30/2011 0.00
7/31/2011 0.00
8/1/2011 T
8/2/2011 0.06
8/3/2011 0.00
8/4/2011 0.00
8/5/2011 0.00
8/6/2011 0.05
8/7/2011 0.00
8/8/2011 0.02
8/9/2011 0.02
8/10/2011 0.04
8/11/2011 0.05
8/12/2011 0.25
8/13/2011 0.00
8/14/2011 0.00
8/15/2011 0.00
8/16/2011 0.02
8/17/2011 0.00
8/18/2011 0.00
8/19/2011 0.00
8/20/2011 0.00
8/21/2011 0.00
8/22/2011 0.02
8/23/2011 0.00
8/24/2011 0.00
8/25/2011 0.01
8/26/2011 0.00
8/27/2011 0.01
8/28/2011 T
8/29/2011 T
8/30/2011 0.07
8/31/2011 0.00
9/1/2011 0.02
9/2/2011 0.02
9/3/2011 0.00
9/4/2011 0.00
9/5/2011 0.00
9/6/2011 0.00
9/7/2011 0.00
9/8/2011 0.00
9/9/2011 0.00
9/10/2011 0.00
9/11/2011 0.00
9/12/2011 0.00
9/13/2011 0.00
9/14/2011 0.03
9/15/2011 0.00
9/16/2011 0.00
9/17/2011 0.04
9/18/2011 0.03
9/19/2011 T
9/20/2011 T
9/21/2011 0.00
9/22/2011 0.00
9/23/2011 0.00
9/24/2011 0.00
9/25/2011 0.00
9/26/2011 0.00
9/27/2011 0.00
9/28/2011 0.00
9/29/2011 0.00
9/30/2011 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2010 7:00 AM 0.00 0.0 M M M
10/2/2010 7:00 AM 0.00 0.0 M M M
10/3/2010 7:00 AM 0.00 0.0 M M M No clouds either
10/4/2010 7:00 AM 0.00 0.0 M M M
10/5/2010 7:00 AM T M M M M Just enough to muss the dust on the steel roof
10/6/2010 7:00 AM 0.02 M M M M Eleven straight days with no precip, longest stretch this year since temp was over 40°. Very foggy and moist this AM.
10/7/2010 7:00 AM 0.00 0.0 M M M
10/8/2010 7:00 AM 0.00 0.0 M M M
10/9/2010 7:00 AM 0.34 M M M M There was snow in the Beartooths yesterday afternoon when I could see them. First time this water year.
10/10/2010 7:00 AM 0.12 M M M M
10/11/2010 7:00 AM 0.00 0.0 M M M
10/12/2010 7:00 AM 0.07 M M M M Low of 35° provided first frost of season this am on equipment, roofs and vehicles at observation time.
10/13/2010 7:00 AM 0.00 0.0 M M M
10/14/2010 7:00 AM 0.00 0.0 M M M
10/15/2010 7:00 AM 0.00 0.0 M M M
10/16/2010 7:00 AM 0.00 0.0 M M M
10/17/2010 7:00 AM 0.06 M M M M We needed the precipitation.
10/18/2010 7:00 AM 0.02 M M M M Frost this morning with fog in the Yellowstone River valley.
10/19/2010 7:00 AM 0.00 0.0 M M M
10/20/2010 7:00 AM 0.00 0.0 M M M
10/21/2010 7:00 AM 0.00 0.0 M M M
10/22/2010 7:00 AM 0.00 0.0 M M M
10/23/2010 7:00 AM 0.00 0.0 M M M
10/24/2010 7:00 AM 0.00 0.0 M M M
10/25/2010 7:00 AM 0.19 M M M M
10/26/2010 7:00 AM 0.00 0.0 M M M
10/27/2010 7:00 AM 0.01 M M M M Very windy day. Peak gust 51 mph. Average for the day was 19.4 mph.
10/28/2010 7:00 AM 0.00 0.0 M M M
10/29/2010 7:00 AM 0.00 0.0 M M M
10/30/2010 7:00 AM 0.00 0.0 M M M
10/31/2010 7:00 AM 0.00 0.0 M M M
11/1/2010 7:00 AM 0.05 0.0 M M M
11/2/2010 7:00 AM 0.00 0.0 M M M
11/3/2010 7:00 AM 0.00 0.0 M M M
11/4/2010 7:00 AM 0.00 0.0 M M M
11/5/2010 7:00 AM 0.00 0.0 M M M CAVU
11/6/2010 7:00 AM 0.00 0.0 M M M
11/7/2010 7:00 AM 0.00 0.0 M M M
11/8/2010 7:00 AM 0.00 0.0 M M M
11/9/2010 7:00 AM 0.48 2.4 0.46 2.4 0.46 Crusty wet snow. Gravel roads clear, too much heat in road for snow accumulation. Some rain fell before snow began, hence difference between gauge and snowfall precip amounts. Stayed 32° all night.
11/10/2010 7:00 AM 0.01 0.2 0.01 1.0 0.30 Ground about 50% covered with snow. Depends on ground. Gravel roads and driveway are clear, while woodpile, vehicles, decks, and grassy areas have snow. No snow in pine trees. Remaining snow is crusty with layer of ice underneath. Coldest temp of season at 24.9° explains crusty snow.
11/11/2010 7:00 AM 0.00 0.0 M M M Low for the season at 23.9° this am. Most snow is now melted except on north facing slopes.
11/12/2010 7:00 AM 0.00 0.0 M M M
11/13/2010 7:00 AM 0.00 0.0 M M M CAVU morning. No clouds ergo no precipitation.
11/14/2010 7:00 AM 0.00 0.0 M M M
11/15/2010 7:00 AM 0.02 0.0 M M M A lot of precip for the big gauge.
11/16/2010 7:00 AM 0.03 M M M M From a quickly passing drippy cloud this AM.
11/17/2010 7:00 AM 0.02 T T M M Some snow flurries with large wet flakes yesterday afternoon that were gone as soon as they hit the ground. It was 32° at the time.
11/18/2010 7:00 AM 0.00 0.0 M M M
11/19/2010 7:00 AM 0.35 3.8 0.35 3.8 0.35 A very windy day yesterday. Winds averaged 14.0 mph for the 24 hours (norm is 8.4 mph) with gusts to 55 mph from WSW. A 15° temperature drop in 15 minutes at 3:47 pm from 55° to 40°. High was 58° for the day. Foggy this AM with 1/3 mile visibility. Snow is very light.
11/20/2010 7:00 AM 0.39 3.5 0.39 6.5 0.70 Living in a dusty cold cloud these days.
11/21/2010 7:00 AM 0.32 3.6 0.32 M M
11/22/2010 7:00 AM 0.03 0.7 0.03 7.5 0.90
11/23/2010 7:00 AM 0.03 0.4 0.03 M M Unbelievable. November and it's -4°. Yesterdays high was 5° average was -0.2° Wow.
11/24/2010 7:00 AM 0.05 1.0 0.05 M M
11/25/2010 7:00 AM 0.00 0.0 M M M Windy day with gusts to 45 mph from the West in the afternoon. Trees are now largely barren of snow and the snow on the ground has been significantly rearranged. Happy Thanksgiving!
11/26/2010 7:00 AM 0.00 0.0 M M M
11/27/2010 7:00 AM 0.00 0.0 M M M
11/28/2010 7:00 AM T T T M M
11/29/2010 7:00 AM 0.20 2.0 0.20 6.8 1.06 Snowed until early afternoon and then the wind redistributed the snow. Temperature range and new snow really made travel on gravel roads hazardous.
11/30/2010 7:00 AM 0.00 0.0 M M M
12/1/2010 7:00 AM 0.00 0.0 M M M
12/2/2010 7:00 AM 0.00 0.0 M M M
12/3/2010 7:00 AM 0.11 1.4 0.11 M M A warm 31° means the snow is very wet and heavy.
12/4/2010 7:00 AM T T T M M
12/5/2010 7:00 AM T T T M M This precipitation seems to have been from freezing fog. There was more ice crystals on the outside of the cylinder than on the inside. I scraped it off before weighing.
12/6/2010 7:00 AM 0.00 0.0 M M M
12/7/2010 7:00 AM 0.00 0.0 M M M
12/8/2010 7:00 AM 0.00 0.0 M M M
12/9/2010 7:00 AM 0.00 0.0 M M M
12/10/2010 7:00 AM 0.00 0.0 M M M
12/11/2010 7:00 AM T T T M M
12/12/2010 7:00 AM 0.00 0.0 M M M
12/13/2010 7:00 AM 0.00 0.0 M M M
12/14/2010 7:00 AM 0.00 0.0 M M M
12/15/2010 7:00 AM T M M M M
12/16/2010 7:00 AM 0.00 0.0 M M M
12/17/2010 7:00 AM 0.00 0.0 M M M Heavy freezing fog coated gauge, mostly on outside. Sure is pretty though. Pines all looked like they had an expensive flocking with each needle completely frost coated.
12/18/2010 7:00 AM 0.01 0.1 0.01 M M
12/19/2010 7:00 AM 0.04 0.1 0.04 M M
12/20/2010 7:00 AM 0.18 2.5 0.18 2.5 0.18 Very light fluffy snow. Gravel roads were still covered with hard pack snow and ice form prior snows before last nights snowfall.
12/21/2010 7:00 AM 0.00 0.0 M M M Just cold
12/22/2010 7:00 AM 0.00 0.0 M M M
12/23/2010 7:00 AM 0.00 0.0 M M M
12/24/2010 7:00 AM 0.00 0.0 M M M
12/25/2010 7:00 AM 0.00 0.0 M M M Merry Christmas @ 33°
12/26/2010 7:00 AM 0.00 0.0 M M M 37° this AM. Wow that's warm!
12/27/2010 7:00 AM 0.00 0.0 M M M
12/28/2010 7:00 AM 0.00 0.0 M M M
12/29/2010 7:00 AM 0.00 0.0 M M M
12/30/2010 7:00 AM 0.15 2.5 0.15 M M Strong winds when snow began falling at 2:50PM yesterday blew a fair amount away from ground and from precipitation gauge, I think it's in eastern Wyoming. And the road was almost clear before the snow began. Accumulation measurement was a good guesstimate at best.
12/31/2010 7:00 AM 0.18 2.0 0.18 M M
1/1/2011 7:00 AM 0.00 0.0 M M M
1/2/2011 7:00 AM 0.00 0.0 M M M
1/3/2011 7:00 AM 0.00 0.0 M M M
1/4/2011 7:00 AM 0.00 0.0 M M M
1/5/2011 7:00 AM 0.00 0.0 M M M
1/6/2011 7:00 AM 0.00 0.0 M M M
1/7/2011 7:00 AM T T T M M A very little graupel overnight.
1/8/2011 7:00 AM T T T M M
1/9/2011 7:00 AM T T T M M Snowed for a little while around 3pm and 35°. Had what looked to be almost 0.1" of snow on ground but it was gone by 5pm.
1/10/2011 7:00 AM 0.00 0.0 M 1.5 0.56 Measured snow in an "average" spot. Measured 0.31" moisture in 1.5" snow but left at least 0.25" ice under the 1.5" snow. Could break up the ice. 0.56" is a conservative measure. Ground is about 80% covered with ice and snow.
1/11/2011 7:00 AM 0.00 0.0 M M M
1/12/2011 7:00 AM 0.00 0.0 M M M
1/13/2011 7:00 AM 0.00 0.0 M M M Snow in fields is starting to look pretty old and dirty.
1/14/2011 7:00 AM 0.00 0.0 M M M
1/15/2011 7:00 AM 0.00 0.0 M M M Ok, interesting day from temperature perspective. At 14:26 the temp was 47.5° and the wind was from the NW. In the next minute the wind changed direction to the ENE and the temp began to drop. Thirty minutes later it was 25.7°, a drop of 21.8°. By 20:56, six hours later it was 12.4° almost the low of the day.
1/16/2011 7:00 AM 0.00 0.0 M M M I guess in weather what goes down must come up. After yesterdays steep drop the temp did a 180 and went up form 21.9° at 13:16 to 40.2° at 14:01. A gain of 19° in 45 minutes, not quite as steep but still significant. There was a trace of rain at the interstate (about 1.2 miles S) but nothing at my location.
1/17/2011 7:00 AM T M M 0.0 0.00 After a very warm week much of the snow is gone. Ground cover is less than 20% on south facing hills. On my gravel driveway I have some areas (less than 35% of the area on my hill top) of 1" - 1 1/2" ice that at times have been puddles that simply refreeze when it turns cold. While it has been very warm, upper 40's was not unusual, there has been very little sunlight which is much better at melting ice than just warm temperatures. Gravel roads are still covered with hard pack snow which is not going away easily. They have been extremely slippery in the warm temperatures. They have been very dangerous.
1/18/2011 7:00 AM T M M M M
1/19/2011 7:00 AM 0.16 1.8 0.16 1.8 0.16 Light snow mist at observation time.
1/20/2011 7:00 AM 0.01 0.1 0.01 M M
1/21/2011 7:00 AM 0.00 0.0 M M M No freezing temps = very slippery roads. Good news sunshine cures this condition and it's here today.
1/22/2011 7:00 AM 0.00 0.0 M M M
1/23/2011 7:00 AM T T T M M
1/24/2011 7:00 AM 0.01 0.2 0.01 0.2 0.01 Some hard frozen graupel late yesterday afternoon. Coverage is very ice like. Ground was mostly clear before graupel came, just patches of ice. Shaded areas still snow covered. South facing slopes were almost bare before graupel.
1/25/2011 7:00 AM 0.00 0.0 M M M
1/26/2011 7:00 AM 0.00 0.0 M M M
1/27/2011 7:00 AM 0.00 0.0 M M M Very warm day (and very warm overnight low of 42°) with some sun, so roads are melting fast and becoming mud bogs. Fields are only 50% or less covered with some icey snow. Spring like conditions in January! Did I say January??
1/28/2011 7:00 AM 0.00 0.0 M M M Another warm day and night. Low last 48 hrs is 39°. Fields are only 30% covered in snow and road are clearing up rapidly with the help of sunlight radiation.
1/29/2011 7:00 AM 0.00 0.0 M M M
1/30/2011 7:00 AM 0.01 0.2 0.01 M M Ground was 15% covered before snow began. The warm temps and some sunlight really melted a lot.
1/31/2011 7:00 AM 0.06 1.0 0.06 1.1 0.07 With the unseasonably warm weather last week the snow cover was (essentially) zero Saturday afternoon before this snow.
2/1/2011 7:00 AM 0.00 0.0 M M M
2/2/2011 7:00 AM 0.00 0.0 M M M Low of -16.0° at 7:30AM Tuesday. High of -1.9° mid-afternoon. The low was a bottom of an almost straight line decline from Fridays mid afternoon high of 54.3°, a difference of 70°.
2/3/2011 7:00 AM 0.00 0.0 M M M
2/4/2011 7:00 AM 0.00 0.0 M M M Wow It's 44°. Kinda taking care of last weekends snow fall. It's all gone now. Back to zero ground cover. I was just getting used to that sub zero stuff.
2/5/2011 7:00 AM 0.00 0.0 M M M Low for the 24 hrs was 35°. Fields are bare.
2/6/2011 7:00 AM 0.04 0.5 0.04 0.3 0.03 Some snow (1/4") in the morning that melted away and then a little overnight.
2/7/2011 7:00 AM 0.07 1.0 0.07 1.2 0.08 Low clouds below 4,000" are coming from the SSE while high level clouds are coming from the NW.
2/8/2011 7:00 AM 0.06 1.8 0.06 M M Very light fluffy snow again.
2/9/2011 7:00 AM 0.00 0.0 M M M
2/10/2011 7:00 AM 0.00 0.0 M M M
2/11/2011 7:00 AM 0.00 0.0 M M M A warm day, up to 36°, but no solar radiation because it was cloudy almost all day. The impact is the hilly gravel roads are covered with a thin (1/2") packed snow which is extremely slippery above 25°. At least two vehicles off the road this AM as a result. Need some sun today.
2/12/2011 7:00 AM 0.00 0.0 M M M Ahh the joys of solar radiation. The gravel roads are mostly clear from the 1/2" hard pack snow that was so treacherous yesterday. Amazing.
2/13/2011 7:00 AM 0.00 0.0 M M M
2/14/2011 7:00 AM 0.00 0.0 M 0.0 0.00 Warm temps have cleared the fields of snow. A little remains on north facing slopes, but even those are getting thin.
2/15/2011 7:00 AM 0.00 0.0 M M M Pretty good haze/very light fog this morning. Visibility is less than 5-8 miles.
2/16/2011 7:00 AM 0.00 0.0 M M M
2/17/2011 7:00 AM 0.00 0.0 M M M No snow yet. Very windy overnight. Between 5:00am and 5:35am we had a gust of 54mph and average speed about 37mph.
2/18/2011 7:00 AM 0.00 0.0 M M M
2/19/2011 7:00 AM 0.01 T 0.01 M M Ground is mostly clear of snow.
2/20/2011 7:00 AM 0.07 1.3 0.07 1.3 0.07 Very light fluffy snow. Limited visibility due to light snow fog.
2/21/2011 7:00 AM 0.13 1.1 0.13 2.1 0.23
2/22/2011 7:00 AM 0.00 0.0 M M M
2/23/2011 7:00 AM 0.01 0.1 0.01 M M Early evening moisture was more like freezing rain than anything else.
2/24/2011 7:00 AM 0.07 1.0 0.07 M M
2/25/2011 7:00 AM 0.01 0.1 0.01 M M
2/26/2011 7:00 AM 0.00 0.0 M M M
2/27/2011 7:00 AM 0.00 0.0 M M M
2/28/2011 7:00 AM 0.00 0.0 M 0.7 0.08
3/1/2011 7:00 AM 0.00 0.0 M M M Wow 4:02am 40°, 4:32am 16°, 6:40am 4°. Stopped that snow melt right now!
3/2/2011 7:00 AM T T T M M
3/3/2011 7:00 AM 0.00 0.0 M M M
3/4/2011 7:00 AM 0.15 1.4 0.15 1.4 0.15 Heavy fog along Yellowstone River this AM, very pretty with clear blue sky above. Freezing fog has coated trees and bushes.
3/5/2011 7:00 AM 0.00 0.0 M M M
3/6/2011 7:00 AM 0.00 0.0 M M M
3/8/2011 7:00 AM 0.00 0.0 M M M
3/9/2011 7:00 AM 0.00 0.0 M M M
3/10/2011 7:00 AM 0.00 0.0 M M M
3/11/2011 7:00 AM 0.06 1.2 0.60 M M
3/12/2011 7:00 AM 0.00 0.0 M M M
3/13/2011 7:00 AM 0.00 0.0 M M M
3/14/2011 7:00 AM 0.00 0.0 M 0.0 0.00
3/15/2011 7:00 AM T M M M M
3/16/2011 7:00 AM 0.08 M M M M
3/17/2011 7:00 AM 0.09 0.5 0.09 M M
3/18/2011 7:00 AM T T T 0.0 0.00 Light flurries then some graupel from passing cloud. We were on the northern outskirts of the cloud.
3/19/2011 7:00 AM 0.00 0.0 M M M
3/20/2011 7:00 AM T M M M M
3/21/2011 7:00 AM 0.00 0.0 M 0.0 0.00
3/22/2011 7:00 AM 0.28 3.6 0.28 3.6 0.28 A little more than expected. Still snowing.
3/23/2011 7:00 AM 0.49 8.3 0.49 11.2 0.89 A very heavy wet snow that came down all day.
3/24/2011 7:00 AM 0.00 0.0 M M M Frost on objects this morning from fog and low temps (25°). Spring snow plus bright sunny day means gravel roads are actually clear and mostly dry since we plowed them towards the end of the snowfall Tuesday. In Winter snowfalls we don't get the sunlight and warm temps to clear the roads after the snowfall.
3/25/2011 7:00 AM 0.00 0.0 M 4.3 0.80 Thick ground level fog this morning. Road's are clear, fields are snow packed.
3/26/2011 7:00 AM 0.00 0.0 M 4.1 0.82 Heavy fog most of yesterday. Couldn't see more than 100 yds. until after about 3pm. Heavy fog this AM again that coated everything with a thin coat of ice. Rain gauge had 0.02" of precip on outside of it and 0.01" on the inside in the top 3" of the gauge. Not much solar radiation yesterday so snow on ground changed very little. The sample this AM taken from just next to the place I took a sample yesterday had slightly more precip (0.02"). I guess that's within statistical bounds, since we received no new precip.
3/27/2011 7:00 AM 0.00 0.0 M 4.0 0.91
3/28/2011 7:00 AM 0.05 0.7 0.05 4.7 1.02 Ground appears to no longer be frozen. Gravel roads are clear and dry. Snow melt is being absorbed into ground, not running off like it did after last snow fall. Snow level Sunday afternoon was at 3,700 ft. Below that there was minimal snow cover, save for north facing slopes.
3/29/2011 7:00 AM 0.02 T T 2.7 0.81 About 7 pm had very light snow shower with some mist for a few minutes. Yellowstone River Valley very foggy this AM. Very heavy frost on ground and all objects. Had to remove frost from outside and inside of gauge in order to measure precipitation from last nights snow/rain mist. Most snow (50%)is gone from ground, there is no standing water, all has soaked into ground. Area where I've been measuring SWE is shaded after late morning, so it is slow to melt. It contains very large ice crystals with a thick crust and ice on bottom.
3/30/2011 7:00 AM 0.00 0.0 M M M
3/31/2011 7:00 AM 0.00 0.0 M M M
4/1/2011 7:00 AM T M M M M
4/2/2011 7:00 AM T M M M M
4/3/2011 7:00 AM 0.02 M M M M Windy afternoon. Peak gusts at 56 mph from SSW.
4/4/2011 7:00 AM 0.03 0.2 0.03 0.0 0.00 Snow, clear, melt, graupel, clear, melt, snow, clear, melt, graupel, clear, melt, frost. Welcome to Spring!
4/5/2011 7:00 AM 0.00 0.0 M M M
4/6/2011 7:00 AM 0.00 0.0 M M M Warm morning
4/7/2011 7:00 AM 0.00 0.0 M M M A little frost this morning
4/8/2011 7:00 AM 0.62 6.0 0.60 M M We had short snow fall in the morning about 1/4" and 0.02 water that melted shortly after it fell. Rain began at 7:15 and turned to snow at 8:15. Only a low overcast at time of report. A heart attack snow fall, very very heavy.
4/9/2011 7:00 AM 0.08 T 0.07 M M Can't tell how much snow fell as it all melted about as quick as it fell.
4/10/2011 7:00 AM 0.00 0.0 M M M
4/11/2011 7:00 AM 0.00 0.0 M 0.0 0.00 Snow is gone from the fields after two warm afternoons. Some snow still on north facing slopes of hills.
4/12/2011 7:00 AM 0.00 0.0 M M M
4/13/2011 7:00 AM 0.00 0.0 M M M Very heavy dew last night. A very brief dash of a few snow flakes at 9:45am Tuesday morning, not enough to be even called a trace.
4/14/2011 7:00 AM T M M M M
4/15/2011 7:00 AM 0.00 0.0 M M M
4/16/2011 7:00 AM T M M M M
4/17/2011 7:00 AM 0.16 M M M M
4/18/2011 7:00 AM 0.21 0.7 0.05 0.6 0.21 Light rain last evening turned to snow overnight. A fairly thick layer of ice at bottom of rain gauge covered with frozen snow.
4/19/2011 7:00 AM 0.34 5.2 0.34 M M Snowed most of the day with no accumulation until just a few minutes before 8 PM. BY 9:46 PM we had 1.3" of accumulation. At 2:30AM we had about 3.5" to 4".
4/20/2011 7:00 AM 0.20 1.2 M 0.0 0.00 Snow that fell all melted
4/21/2011 7:00 AM 0.00 0.0 M M M
4/22/2011 7:00 AM 0.05 M M M M
4/23/2011 7:00 AM T T T 0.0 0.00
4/24/2011 7:00 AM 0.00 0.0 M M M
4/25/2011 7:00 AM 0.00 0.0 M M M
4/26/2011 7:00 AM 0.00 0.0 M M M Rain went around up in the late afternoon.
4/27/2011 7:00 AM 0.05 M M M M Not much water considering how long it rained.
4/28/2011 7:00 AM 0.00 0.0 M M M
4/29/2011 7:00 AM 0.05 0.2 T 0.0 0.00 Some Snow, some Rain
4/30/2011 7:00 AM 0.04 0.5 0.04 0.0 0.00
5/1/2011 7:00 AM T M M M M
5/2/2011 7:00 AM 0.03 M M 0.0 0.00
5/3/2011 7:00 AM 0.00 0.0 M M M
5/4/2011 7:00 AM 0.00 0.0 M M M
5/5/2011 7:00 AM 0.00 0.0 M M M
5/6/2011 7:00 AM 0.00 0.0 M M M
5/7/2011 7:00 AM 0.01 M M M M
5/8/2011 7:00 AM 0.12 M M M M Lots of drip and dash showers throughout the day.
5/9/2011 7:00 AM 0.51 M M M M Soaker week.
5/10/2011 7:00 AM 1.00 M M M M Wow we're Seattle East. 0.16" at 2pm yesterday, 0.61" at 7PM and a full cylinder this AM. Water is starting to puddle in shallow depressions on the ground.
5/11/2011 7:00 AM 0.21 M M M M Sunshine this AM. Puddles are largely gone
5/12/2011 7:00 AM 0.00 0.0 M M M Why my deck is full of puddles and the rain gauge has dust I don't understand. Heavy Dew.
5/13/2011 7:00 AM 0.00 0.0 M M M
5/14/2011 7:00 AM 0.00 0.0 M M M
5/15/2011 7:00 AM 0.00 0.0 M M M
5/16/2011 7:00 AM 0.00 0.0 M M M
5/17/2011 7:00 AM 0.09 M M M M
5/18/2011 7:00 AM 0.00 0.0 M M M It's hard to believe the rain gauge was dry this AM. The deck was covered with a very heavy dew, but the gauge was dry.
5/19/2011 7:00 AM T M M M M At 5:07PM a 30 second noise on the roof. Not sure it covered the whole house or where the rain gauge is located. Gauge was dry by 7AM.
5/20/2011 7:00 AM 1.15 M M M M This morning we have standing puddles all around. We had 0.20" at 8PM last evening, so 0.95 since then. It's still raining pretty good. Better go check the roads.
5/21/2011 7:00 AM 2.01 M M M M A new single day record for this location. Most standing puddles have been absorbed into the ground.
5/22/2011 7:00 AM 0.16 M M M M Wow. Two good things. The inner gauge was not overflowing this AM and the sun was kinda out. Casual puddles have been absorbed.
5/23/2011 7:00 AM 0.01 M M M M
5/24/2011 7:00 AM 0.40 M M M M
5/25/2011 7:00 AM 0.97 M M M M 0.52" at 6PM last evening. Only about half the puddles we've had, so it appears the water is still soaking into the ground.
5/26/2011 7:00 AM 0.04 M M M M
5/27/2011 7:00 AM 0.01 M M M M
5/28/2011 7:00 AM 0.02 M M M M
5/29/2011 7:00 AM 0.04 M M M M
5/30/2011 7:00 AM 0.67 M M M M Light rain all day yesterday. 0.24" at noon, 0.45" at 5pm. Some standing puddles this AM as ground is kinda saturated by now. Very foggy most of the day with light drizzle.
5/31/2011 7:00 AM 0.31 M M M M After 13 straight days of rain, we have a new visitor, the Sun. Not sure how to act. We can see the Beartooths again.
6/1/2011 7:00 AM 0.00 0.0 M M M First day in two weeks with no precip.
6/2/2011 7:00 AM 0.00 0.0 M M M
6/3/2011 7:00 AM 0.00 0.0 M M M Zero again. Winds very heavy all afternoon and overnight. Had 10 minute periods where winds averaged 42 mph. Gusts were 60 mph from WSW. My weather station alarm were off many times (couple of dozen times at least) because winds were 55 mph or higher. Winds continue to be very heavy this morning.
6/4/2011 7:00 AM 0.00 0.0 M M M
6/5/2011 7:00 AM 0.00 0.0 M M M
6/6/2011 7:00 AM 0.00 0.0 M M M
6/7/2011 7:00 AM 0.06 M M M M Lost power due to the winds.
6/8/2011 7:00 AM 0.10 M M M M
6/9/2011 7:00 AM 0.46 M M M M A number of puddles on the ground means the ground is saturated.
6/10/2011 7:00 AM 0.06 M M M M
6/11/2011 7:00 AM 0.00 0.0 M M M
6/12/2011 7:00 AM 0.01 M M M M
6/13/2011 7:00 AM 0.00 0.0 M M M
6/14/2011 7:00 AM T M M M M
6/15/2011 7:00 AM 0.00 0.0 M M M
6/16/2011 7:00 AM 0.00 0.0 M M M
6/17/2011 7:00 AM 0.01 M M M M
6/18/2011 7:00 AM 0.00 0.0 M M M
6/19/2011 7:00 AM 0.00 0.0 M M M
6/20/2011 7:00 AM 0.58 M M M M Some puddles for a while yesterday afternoon when rain finished. They are gone now. Had 0.34" in 15 minutes at beginning.
6/21/2011 7:00 AM 0.00 0.0 M M M
6/22/2011 7:00 AM 0.00 0.0 M M M
6/23/2011 7:00 AM 0.00 0.0 M M M
6/24/2011 7:00 AM 0.05 M M M M 0.02" initially when the front passed by. Pretty tame.
6/25/2011 7:00 AM 0.07 M M M M
6/26/2011 7:00 AM 0.00 0.0 M M M
6/27/2011 7:00 AM 0.06 M M M M
6/28/2011 7:00 AM 0.00 0.0 M M M
6/29/2011 7:00 AM 0.00 0.0 M M M
6/30/2011 7:00 AM 0.00 0.0 M M M
7/1/2011 7:00 AM 0.00 0.0 M M M
7/2/2011 7:00 AM 0.00 0.0 M M M
7/3/2011 7:00 AM 0.00 0.0 M M M
7/4/2011 7:00 AM T M M M M
7/5/2011 7:00 AM 0.00 0.0 M M M Noticed that ski runs at Red Lodge finally almost completely snow free. Until a couple of days ago they were covered with snow.
7/6/2011 7:00 AM 0.00 0.0 M M M
7/7/2011 7:00 AM 0.04 M M M M
7/8/2011 7:00 AM 0.06 M M M M
7/9/2011 7:00 AM 0.22 M M M M 1/4" to 1/2" hail when T-Storm came through late afternoon. Precip was probably actually higher as wind was gusting to 51 MPH and everything was flying sideways. Should mount the gauge on gimbals to fix that. No damage from hail which fell for almost 5 minutes. Almost covered the ground but it melted very quickly.
7/10/2011 7:00 AM 0.00 0.0 M M M
7/11/2011 7:00 AM T M M M M A few random, lost drops yesterday afternoon
7/12/2011 7:00 AM 0.01 M M M M
7/13/2011 7:00 AM T M M M M
7/14/2011 7:00 AM T M M M M
7/15/2011 7:00 AM 0.23 M M M M High 0.10" in early T-Storm pass by. Fair amount of lightning, but little wind. Second T-storm hit us straight on and rained quite hard. No wind, no hail, little lightning, just pour.
7/16/2011 7:00 AM 0.00 0.0 M M M
7/17/2011 7:00 AM 0.00 0.0 M M M No precip, but heavy enough dew to have a dripline off of metal roof this AM.
7/18/2011 7:00 AM 0.00 0.0 M M M Low (!!!???) overnight of 75°! Did we get moved to Arizona or Texas overnight somehow?
7/19/2011 7:00 AM 0.00 0.0 M M M
7/20/2011 7:00 AM 0.00 0.0 M M M Just windy. Peaked at 52 mph from the SW.
7/21/2011 7:00 AM 0.00 0.0 M M M
7/23/2011 7:00 AM T M M M M
7/24/2011 7:00 AM 0.00 0.0 M M M
7/25/2011 7:00 AM 0.00 0.0 M M M
7/26/2011 7:00 AM 0.00 0.0 M M M
7/27/2011 7:00 AM 0.03 M M M M
7/28/2011 7:00 AM 0.04 M M M M
7/29/2011 7:00 AM 0.00 0.0 M M M
7/30/2011 7:00 AM 0.00 0.0 M M M
7/31/2011 7:00 AM 0.00 0.0 M M M
8/1/2011 7:00 AM T M M M M
8/2/2011 7:00 AM 0.06 M M M M
8/3/2011 7:00 AM 0.00 0.0 M M M
8/4/2011 7:00 AM 0.00 0.0 M M M
8/5/2011 7:00 AM 0.00 0.0 M M M
8/6/2011 7:00 AM 0.05 M M M M
8/7/2011 7:00 AM 0.00 0.0 M M M
8/8/2011 7:00 AM 0.02 M M M M
8/9/2011 7:00 AM 0.02 M M M M
8/10/2011 7:00 AM 0.04 M M M M
8/11/2011 7:00 AM 0.05 M M M M
8/12/2011 7:00 AM 0.25 M M M M
8/13/2011 7:00 AM 0.00 0.0 M M M
8/14/2011 7:00 AM 0.00 0.0 M M M
8/15/2011 7:00 AM 0.00 0.0 M M M
8/16/2011 7:00 AM 0.02 M M M M
8/17/2011 7:00 AM 0.00 0.0 M M M
8/18/2011 7:00 AM 0.00 0.0 M M M
8/19/2011 7:00 AM 0.00 0.0 M M M Does Virga count?? I guess not.
8/20/2011 7:00 AM 0.00 0.0 M M M
8/21/2011 7:00 AM 0.00 0.0 M M M
8/22/2011 7:00 AM 0.02 M M M M Big lighting show, a little wind and very little rain. Many fires though, all handled very quickly by local Rural Volunteer Fire Departments. Thanks folks.
8/23/2011 7:00 AM 0.00 0.0 M M M
8/24/2011 7:00 AM 0.00 0.0 M M M
8/25/2011 7:00 AM 0.01 M M M M
8/26/2011 7:00 AM 0.00 0.0 M M M
8/27/2011 7:00 AM 0.01 M M M M
8/28/2011 7:00 AM T M M M M
8/29/2011 7:00 AM T M M M M
8/30/2011 7:00 AM 0.07 M M M M
8/31/2011 7:00 AM 0.00 0.0 M M M
9/1/2011 7:00 AM 0.02 M M M M
9/2/2011 7:00 AM 0.02 M M M M
9/3/2011 7:00 AM 0.00 0.0 M M M
9/4/2011 7:00 AM 0.00 0.0 M M M
9/5/2011 7:00 AM 0.00 0.0 M M M
9/6/2011 7:00 AM 0.00 0.0 M M M
9/7/2011 7:00 AM 0.00 0.0 M M M
9/8/2011 7:00 AM 0.00 0.0 M M M Just still smokey.
9/9/2011 7:00 AM 0.00 0.0 M M M
9/10/2011 7:00 AM 0.00 0.0 M M M Air is getting clearer. Fires must be subsiding.
9/11/2011 7:00 AM 0.00 0.0 M M M
9/12/2011 7:00 AM 0.00 0.0 M M M Smoke is pretty thick this AM. Has Texas moved into the area?? It's hot and dry.
9/13/2011 7:00 AM 0.00 0.0 M M M
9/14/2011 7:00 AM 0.03 M M M M Ground is dry already in many places. Needed the moisture.
9/15/2011 7:00 AM 0.00 0.0 M M M
9/16/2011 7:00 AM 0.00 0.0 M M M
9/17/2011 7:00 AM 0.04 M M M M 0.01" Friday afternoon and then 0.03" this am and still raining. Finally cleaned out those floaters from the gauge.
9/18/2011 7:00 AM 0.03 M M M M
9/19/2011 7:00 AM T M M M M
9/20/2011 7:00 AM T M M M M Windy day when cold front came through, gusts to 56 mph. Temp dropped from 73° at 16:44 to 56° at 16:59, eventually falling to 49° at 18:33 before rising again.
9/21/2011 7:00 AM 0.00 0.0 M M M Low for the season of 35°
9/22/2011 7:00 AM 0.00 0.0 M M M
9/23/2011 7:00 AM 0.00 0.0 M M M
9/24/2011 7:00 AM 0.00 0.0 M M M Got to have a cloud first before we get any precipitation. Great Day!
9/25/2011 7:00 AM 0.00 0.0 M M M
9/26/2011 7:00 AM 0.00 0.0 M M M
9/27/2011 7:00 AM 0.00 0.0 M M M
9/28/2011 7:00 AM 0.00 0.0 M M M
9/29/2011 7:00 AM 0.00 0.0 M M M
9/30/2011 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
7/8/2011 3:48 PM 1/2" Grape 3/8" 1/4" Pea Size Soft|White Ice 4 1min no damage.minor leaf damage Continuous True Same time as rain After smaller hail 50-60