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 09 0.85 0.80 31 0.80 31 0.00 0 0 10 13 5.7 3 6
Nov 09 0.96 0.44 30 0.44 28 0.00 2 1 8 9 3.6 4 6
Dec 09 0.84 0.16 31 0.16 31 0.00 0 0 7 14 2.5 6 15
Jan 10 0.95 0.85 31 0.85 31 0.00 0 0 8 12 6.3 5 10
Feb 10 0.81 0.19 28 0.19 26 0.00 2 1 3 15 2.4 4 17
March 10 1.15 1.53 31 1.53 31 0.00 0 0 9 4 6.0 4 6
April 10 1.42 0.75 30 0.73 27 0.02 3 1 8 7 1.2 3 2
May 10 2.02 1.44 31 1.44 31 0.00 0 0 10 10 0.1 1 0
June 10 2.28 2.79 30 2.79 27 0.00 3 1 15 5 0.0 0 0
July 10 1.17 0.27 31 0.27 31 0.00 0 0 6 4 0.0 0 0
Aug 10 1.12 1.13 30 1.13 30 0.00 0 0 10 4 0.0 0 0
Sept 10 1.12 0.92 30 0.92 30 0.00 0 0 8 4 0.0 0 0
Water Year Totals: 14.69" 11.27" 364 days 11.25" 354 0.02" 10 days 4 102 days 101 days 27.8" 30 days 62 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 0.02
10/2/2009 0.00
10/3/2009 0.00
10/4/2009 T
10/5/2009 T
10/6/2009 T
10/7/2009 0.00
10/8/2009 0.18
10/9/2009 0.15
10/10/2009 0.04
10/11/2009 T
10/12/2009 T
10/13/2009 0.00
10/14/2009 T
10/15/2009 0.10
10/16/2009 0.02
10/17/2009 0.00
10/18/2009 0.00
10/19/2009 T
10/20/2009 0.15
10/21/2009 0.00
10/22/2009 T
10/23/2009 T
10/24/2009 0.09
10/25/2009 T
10/26/2009 0.00
10/27/2009 0.04
10/28/2009 T
10/29/2009 T
10/30/2009 0.01
10/31/2009 T
11/1/2009 0.01
11/2/2009 T
11/3/2009 0.00
11/4/2009 0.00
11/5/2009 0.00
11/6/2009 T
11/7/2009 0.06
11/8/2009 T
11/9/2009 T
11/10/2009 0.00
11/11/2009 T
11/12/2009 0.23
11/13/2009 0.07
11/14/2009 T
11/15/2009 0.00
11/16/2009 0.00
11/17/2009 0.00
11/18/2009 0.01
11/19/2009 **
11/20/2009 T
11/21/2009 0.03
11/22/2009 T
11/23/2009 0.02
11/24/2009 T
11/25/2009 T
11/26/2009 0.00
11/27/2009 0.00
11/28/2009 0.01
11/29/2009 0.00
11/30/2009 0.00
12/1/2009 0.03
12/2/2009 0.01
12/3/2009 0.00
12/4/2009 0.00
12/5/2009 T
12/6/2009 0.02
12/7/2009 0.00
12/8/2009 0.00
12/9/2009 0.00
12/10/2009 0.00
12/11/2009 0.00
12/12/2009 0.00
12/13/2009 0.05
12/14/2009 0.01
12/15/2009 T
12/16/2009 T
12/17/2009 0.03
12/18/2009 T
12/19/2009 0.00
12/20/2009 T
12/21/2009 0.01
12/22/2009 T
12/23/2009 T
12/24/2009 T
12/25/2009 0.00
12/26/2009 T
12/27/2009 T
12/28/2009 T
12/29/2009 T
12/30/2009 T
12/31/2009 T
Day of YearDaily PrcpMultiday Prcp
1/1/2010 T
1/2/2010 0.13
1/3/2010 T
1/4/2010 0.00
1/5/2010 T
1/6/2010 0.12
1/7/2010 T
1/8/2010 0.00
1/9/2010 0.00
1/10/2010 T
1/11/2010 0.00
1/12/2010 0.03
1/13/2010 0.00
1/14/2010 0.01
1/15/2010 0.00
1/16/2010 0.00
1/17/2010 T
1/18/2010 0.00
1/19/2010 T
1/20/2010 T
1/21/2010 0.00
1/22/2010 0.00
1/23/2010 0.14
1/24/2010 0.08
1/25/2010 T
1/26/2010 0.07
1/27/2010 0.27
1/28/2010 T
1/29/2010 0.00
1/30/2010 T
1/31/2010 T
2/1/2010 0.08
2/2/2010 T
2/3/2010 T
2/4/2010 T
2/5/2010 0.02
2/6/2010 T
2/7/2010 0.00
2/8/2010 0.00
2/9/2010 0.00
2/10/2010 T
2/11/2010 T
2/12/2010 T
2/13/2010 T
2/14/2010 0.00
2/15/2010 0.09
2/16/2010 T
2/17/2010 T
2/18/2010 T
2/19/2010 0.00
2/20/2010 T
2/21/2010 T
2/22/2010 0.00
2/23/2010 0.00
2/24/2010 **
2/25/2010 T
2/26/2010 T
2/27/2010 0.00
2/28/2010 T
3/1/2010 0.00
3/2/2010 0.00
3/3/2010 0.00
3/4/2010 0.04
3/5/2010 0.00
3/6/2010 0.00
3/7/2010 0.00
3/8/2010 0.00
3/9/2010 0.63
3/10/2010 0.06
3/11/2010 0.00
3/12/2010 0.00
3/13/2010 T
3/14/2010 T
3/15/2010 0.00
3/16/2010 0.00
3/17/2010 0.00
3/18/2010 0.00
3/19/2010 0.00
3/20/2010 0.00
3/21/2010 0.00
3/22/2010 0.12
3/23/2010 0.01
3/24/2010 T
3/25/2010 0.00
3/26/2010 0.05
3/27/2010 T
3/28/2010 0.00
3/29/2010 0.03
3/30/2010 0.52
3/31/2010 0.07
Day of YearDaily PrcpMultiday Prcp
4/1/2010 0.00
4/2/2010 T
4/3/2010 0.03
4/4/2010 T
4/5/2010 0.00
4/6/2010 T
4/7/2010 T
4/8/2010 0.00
4/9/2010 0.05
4/10/2010 0.00
4/11/2010 T
4/12/2010 0.03
4/13/2010 0.16
4/14/2010 0.07
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 T
4/22/2010 0.36
4/23/2010 **
4/24/2010 **
4/25/2010 0.02
4/26/2010 0.00
4/27/2010 0.00
4/28/2010 0.02
4/29/2010 T
4/30/2010 0.01
5/1/2010 0.00
5/2/2010 T
5/3/2010 T
5/4/2010 0.04
5/5/2010 T
5/6/2010 T
5/7/2010 0.00
5/8/2010 0.00
5/9/2010 T
5/10/2010 0.00
5/11/2010 T
5/12/2010 0.00
5/13/2010 0.00
5/14/2010 0.00
5/15/2010 0.00
5/16/2010 T
5/17/2010 0.00
5/18/2010 T
5/19/2010 0.04
5/20/2010 0.03
5/21/2010 T
5/22/2010 0.15
5/23/2010 T
5/24/2010 0.09
5/25/2010 0.24
5/26/2010 0.00
5/27/2010 0.30
5/28/2010 0.13
5/29/2010 0.41
5/30/2010 0.01
5/31/2010 0.00
6/1/2010 0.19
6/2/2010 0.05
6/3/2010 0.16
6/4/2010 0.05
6/5/2010 0.38
6/6/2010 0.00
6/7/2010 0.18
6/8/2010 0.04
6/9/2010 0.00
6/10/2010 0.27
6/11/2010 T
6/12/2010 T
6/13/2010 0.00
6/14/2010 0.00
6/15/2010 0.21
6/16/2010 0.50
6/17/2010 0.29
6/18/2010 0.03
6/19/2010 0.00
6/20/2010 T
6/21/2010 T
6/22/2010 T
6/23/2010 **
6/24/2010 **
6/25/2010 T
6/26/2010 0.02
6/27/2010 0.00
6/28/2010 0.00
6/29/2010 0.01
6/30/2010 0.41
Day of YearDaily PrcpMultiday Prcp
7/1/2010 0.00
7/2/2010 T
7/3/2010 0.01
7/4/2010 T
7/5/2010 0.01
7/6/2010 T
7/7/2010 0.00
7/8/2010 0.00
7/9/2010 0.00
7/10/2010 0.00
7/11/2010 0.01
7/12/2010 0.00
7/13/2010 0.00
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 0.00
7/20/2010 0.00
7/21/2010 0.00
7/22/2010 0.00
7/23/2010 0.00
7/24/2010 0.00
7/25/2010 0.00
7/26/2010 0.00
7/27/2010 T
7/28/2010 0.18
7/29/2010 0.01
7/30/2010 0.00
7/31/2010 0.05
8/1/2010 0.21
8/2/2010 0.00
8/3/2010 0.00
8/4/2010 0.00
8/5/2010 T
8/6/2010 0.00
8/7/2010 0.07
8/8/2010 T
8/9/2010 0.01
8/10/2010 0.11
8/11/2010 0.33
8/12/2010 0.04
8/13/2010 0.24
8/14/2010 0.00
8/15/2010 0.00
8/16/2010 0.00
8/17/2010 0.00
8/18/2010 0.00
8/19/2010 0.00
8/20/2010 0.00
8/21/2010 0.00
8/22/2010 0.00
8/23/2010 0.01
8/24/2010 0.00
8/25/2010
8/26/2010 0.00
8/27/2010 T
8/28/2010 0.00
8/29/2010 0.05
8/30/2010 0.06
8/31/2010 T
9/1/2010 T
9/2/2010 0.07
9/3/2010 0.00
9/4/2010 0.00
9/5/2010 0.00
9/6/2010 0.01
9/7/2010 0.00
9/8/2010 0.00
9/9/2010 0.42
9/10/2010 0.17
9/11/2010 T
9/12/2010 0.00
9/13/2010 0.00
9/14/2010 0.01
9/15/2010 0.12
9/16/2010 0.00
9/17/2010 0.05
9/18/2010 T
9/19/2010 T
9/20/2010 0.07
9/21/2010 0.00
9/22/2010 0.00
9/23/2010 0.00
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 7:04 AM 0.02 T M M M Total Sept precip was .52" vs. a 1.08" norm.
10/2/2009 8:00 AM 0.00 0.0 M M M
10/3/2009 8:00 AM 0.00 0.0 M M M
10/4/2009 7:50 AM T T M M M Intense winds from midnight to 6 am.
10/5/2009 7:30 AM T T M M M
10/6/2009 7:00 AM T T M M M With wintry weather on the way, be sure to remove the top funnel and inner tube of your rain gauge to avoid cracking.
10/7/2009 7:10 AM 0.00 0.0 M M M
10/8/2009 7:10 AM 0.18 1.5 M 1.0 M Rain changed to snow around 1 pm, with 1.5" on the ground by late afternoon.
10/9/2009 7:35 AM 0.15 2.4 M 2.5 0.15 Light to moderate snow continuing (2.4" so far), with 1/4 mi visibility, NE wind, and temp of 16 (dropped three degrees in past hour).
10/10/2009 7:30 AM 0.04 1.8 M 2.0 M Two-day snow total of 4.2" (.19" SWE), with lingering overnight clouds & flurries and a low of 12 degrees.
10/11/2009 8:00 AM T T M 1.5 M Currently light snow and 14 degrees.
10/12/2009 7:20 AM T T M 1.0 M Trace is from Sunday am light snow, with snow having been observed in eight of the last nine days.
10/13/2009 7:20 AM 0.00 0.0 M 0.5 M
10/14/2009 7:30 AM T 0.0 M T M
10/15/2009 7:40 AM 0.10 0.0 M 0.0 M .10" rain is exact, not rounded.
10/16/2009 7:00 AM 0.02 0.0 M 0.0 M
10/17/2009 7:00 AM 0.00 0.0 M M M
10/18/2009 7:10 AM 0.00 0.0 M M M
10/19/2009 8:00 AM T M M M M
10/20/2009 7:30 AM 0.15 M M M M After a brief lull, showers redeveloped after midnignt. Currently, dense fog w/ vis < 1/4 mi., and a temp of 39.
10/21/2009 8:00 AM 0.00 0.0 M M M
10/22/2009 8:00 AM T 0.0 M 0.0 M
10/23/2009 8:00 AM T M M M M
10/24/2009 8:00 AM 0.09 0.0 M M M
10/25/2009 8:00 AM T T M 0.0 M A couple of light graupel showers yesterday.
10/26/2009 8:00 AM 0.00 0.0 M M M
10/27/2009 7:00 AM 0.04 T M T M Partial clearing after midnight allowed temp to fall to 29, with lingering light flurries.
10/28/2009 8:00 AM T T M 0.0 M
10/29/2009 8:00 AM T T M 0.0 M
10/30/2009 7:00 AM 0.01 T M 0.0 M
10/31/2009 7:00 AM T M M M M
11/1/2009 6:40 AM 0.01 M M M M October total precip was just about normal, .80" actual vs .83" normal. This included 5.7" snow.
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 7:30 AM 0.00 0.0 M M M
11/5/2009 7:30 AM 0.00 0.0 M M M
11/6/2009 7:00 AM T M M M M
11/7/2009 8:00 AM 0.06 T M 0.0 M
11/8/2009 8:00 AM T M M M M
11/9/2009 7:00 AM T T M 0.0 M
11/10/2009 7:00 AM 0.00 0.0 M M M
11/11/2009 8:00 AM T T M T M Graupel shower earlier; currently cloudy and 29.
11/12/2009 7:30 AM 0.23 2.0 M 2.0 M Light to moderate snow over the past two hours, with an additional .5" snow in 30 minutes since initial observation for a total 2.5" accumulation, with a current temp of 28, .5 mile vis, and light NE wind.
11/13/2009 7:30 AM 0.07 1.0 M 2.0 M An additional 1" of snow yesterday morning, with a 3" snow two-day total(.30" SWE).
11/14/2009 8:00 AM T T M 1.5 M
11/15/2009 8:00 AM 0.00 0.0 M 1.5 M
11/16/2009 7:30 AM 0.00 0.0 M 1.0 M
11/17/2009 8:00 AM 0.00 0.0 M T M Mild temps (49 high/34 low) have reduced snow cover to scattered patches.
11/18/2009 7:45 AM 0.01 T M T M From 58 and sun yesterday to 31 and light snow this morning.
11/21/2009 8:00 AM 0.03 0.3 M 0.5 M Lingering flurries and 29 at observation time.
11/22/2009 8:00 AM T T M T M Light snow showers and strong winds at obv time.
11/23/2009 7:40 AM 0.02 0.3 M T M
11/24/2009 7:00 AM T T M 0.0 M
11/25/2009 8:00 AM T M M M M
11/26/2009 7:30 AM 0.00 0.0 M M M
11/27/2009 8:00 AM 0.00 0.0 M M M Yesterday's high of 55 was a noteworthy 20 degrees above normal.
11/28/2009 8:00 AM 0.01 M M M M
11/29/2009 8:00 AM 0.00 0.0 M M M
11/30/2009 8:00 AM 0.00 0.0 M M M
12/1/2009 7:05 AM 0.03 0.3 M 0.5 M Nov total precip was less than half of normal: .44" actual vs .96" normal. A burst of snow and wind between 4-5 am this morning.
12/2/2009 8:00 AM 0.01 0.4 M 0.5 M
12/3/2009 7:00 AM 0.00 0.0 M 0.5 M
12/4/2009 7:00 AM 0.00 0.0 M 0.5 M
12/5/2009 8:00 AM T T M 0.5 M
12/6/2009 8:00 AM 0.02 0.5 M 1.0 M Light, steady snow from 10 am to 2 pm yesterday; overnight low of 5; currently 6 with a brisk wind.
12/7/2009 7:30 AM 0.00 0.0 M 1.0 M Overnight low of -11.
12/8/2009 7:00 AM 0.00 0.0 M 0.5 M Up early this morning to stoke the stove and ward off the overnight low of minus 12.
12/9/2009 8:00 AM 0.00 0.0 M 0.5 M Tuesday high of only minus 2, with an overnight low of minus 9. Tuesday morning low fell another degree after obv time to minus 13.
12/10/2009 8:00 AM 0.00 0.0 M 0.5 M For the first time since Sunday the high temp got above zero yesterday to +8, with a low this morning of minus 4.
12/11/2009 7:00 AM 0.00 0.0 M 0.5 M Morning low above zero for the first time this week at +10. Looking forward to moderating temps today to hitch the snow plow on the truck in anticipation of the next wave of winter weather.
12/12/2009 7:00 AM 0.00 0.0 M 0.5 M
12/13/2009 8:00 AM 0.05 0.8 M 1.0 M
12/14/2009 8:00 AM 0.01 0.2 M 1.0 M
12/15/2009 8:00 AM T T M 1.0 M Currently breezy with downsloping conditions and 33 degrees.
12/16/2009 7:00 AM T T M T M Currently, light rain and 36.
12/17/2009 8:00 AM 0.03 0.0 M 0.0 M Yesterday's moisture has frozen underfoot, with a current temp of 31.
12/18/2009 7:40 AM T T M 0.0 M
12/19/2009 8:00 AM 0.00 0.0 M 0.0 M
12/20/2009 8:00 AM T 0.0 M 0.0 M
12/21/2009 7:00 AM 0.01 0.0 M 0.0 M
12/22/2009 8:30 AM T T M 0.0 M Very light snow starting at obv time, with a temp of 29 and a light wind.
12/23/2009 8:00 AM T T M 0.0 M
12/24/2009 8:00 AM T T M 0.0 M
12/25/2009 8:00 AM 0.00 0.0 M 0.0 M
12/26/2009 7:40 AM T T M T M Very light snow and 12 degrees at obv time.
12/27/2009 8:00 AM T T M T M Snow flurries and frz fog continue at obv time.
12/28/2009 8:00 AM T 0.3 M T M Light snow is from Sunday am.
12/29/2009 8:00 AM T T M T M
12/30/2009 8:00 AM T T M T M Light snow underway, with calm wind, vis of 3 mi, and a temp of 18.
12/31/2009 7:00 AM T T M T M
1/1/2010 8:00 AM T T M T M Total precip for Dec was only .16" liquid vs. 1.15" normal. For all of 2009, total precip was 10.15 liquid, well below the 13.82" norm.
1/2/2010 8:10 AM 0.13 T M 0.0 M
1/3/2010 8:00 AM T T M 0.0 M
1/4/2010 8:00 AM 0.00 0.0 M 0.0 M
1/5/2010 8:00 AM T T M 0.0 M
1/6/2010 8:00 AM 0.12 0.3 M 0.5 M Precip fell mainly as rain, with a burst of snow after midnight; lingering light flurries at daybreak.
1/7/2010 8:00 AM T T M T M
1/8/2010 8:00 AM 0.00 0.0 M T M
1/9/2010 8:00 AM 0.00 0.0 M T M
1/10/2010 8:00 AM T T M T M A light mix of snow, sleet, and frz rn yesterday afternoon.
1/11/2010 8:00 AM 0.00 0.0 M T M
1/12/2010 8:00 AM 0.03 0.0 M T M
1/13/2010 8:00 AM 0.00 0.0 M 0.0 M
1/14/2010 8:00 AM 0.01 0.0 M 0.0 M
1/15/2010 7:00 AM 0.00 0.0 M 0.0 M
1/16/2010 8:00 AM 0.00 0.0 M 0.0 M
1/17/2010 9:00 AM T 0.0 M 0.0 M
1/18/2010 8:00 AM 0.00 0.0 M 0.0 M
1/19/2010 8:00 AM T T M 0.0 M
1/20/2010 8:00 AM T T M 0.0 M
1/21/2010 8:00 AM 0.00 0.0 M 0.0 M
1/22/2010 8:00 AM 0.00 0.0 M 0.0 M
1/23/2010 8:00 AM 0.14 1.4 M 1.5 M Light snow continues at obv time.
1/24/2010 8:00 AM 0.08 1.6 M 3.0 M Overnight snow was very dry: .08 liq = 1.6" sn, for a two-day storm total of .22" liq/3.0" sn.
1/25/2010 8:00 AM T T M 2.5 M
1/26/2010 8:30 AM 0.07 0.5 M 2.5 M Currently: Light to moderate accumulating snow, fog (1 mi vis), calm wind, and a temp of 26.
1/27/2010 8:05 AM 0.27 2.5 M 4.5 M Steady light/mod snow throughout the day into the overnight, with a brief break, and now light snow again with fog (1 mi vis) and a temp of 27.
1/28/2010 8:00 AM T T M 4.0 M
1/29/2010 8:00 AM 0.00 0.0 M 3.5 M
1/30/2010 8:30 AM T T M 3.0 M Light snow pellet shower with a temp of 23 at 8 am suggests a wintry mix moving in a bit more quickly than expected.
1/31/2010 7:00 AM T T M 3.0 M
2/1/2010 7:40 AM 0.08 1.0 M 4.0 M Total precip for January was somewhat below normal: .85" actual vs. 1.06 normal. The snow drought continued as well, with only 6.3" observed.
2/2/2010 8:00 AM T T M 3.5 M Trace snow is from lingering flurries yesterday morning; dry since then.
2/3/2010 8:00 AM T T M 3.0 M
2/4/2010 7:00 AM T 0.1 M 3.0 M Light snow at obv time.
2/5/2010 8:00 AM 0.02 0.5 M 3.0 M Light flurries currently.
2/6/2010 8:00 AM T T M 2.5 M
2/7/2010 8:00 AM 0.00 0.0 M 2.0 M
2/8/2010 8:00 AM 0.00 0.0 M 2.0 M
2/9/2010 8:00 AM 0.00 0.0 M 1.5 M
2/10/2010 7:30 AM T T M 1.5 M
2/11/2010 8:00 AM T T M 1.5 M
2/12/2010 8:00 AM T T M 1.0 M
2/13/2010 8:00 AM T T M 1.0 M
2/14/2010 8:00 AM 0.00 0.0 M 1.0 M
2/15/2010 8:00 AM 0.09 0.8 M 1.5 M Dense fog and a temp of 30.
2/16/2010 8:00 AM T T M 0.5 M
2/17/2010 8:00 AM T T M 0.5 M
2/18/2010 8:00 AM T T M T M A few wet snowflakes during the day; snow pellets overnight.
2/19/2010 8:00 AM 0.00 0.0 M T M
2/20/2010 8:00 AM T T M T M
2/21/2010 8:00 AM T T M T M
2/22/2010 8:00 AM 0.00 0.0 M T M
2/23/2010 8:00 AM 0.00 0.0 M T M
2/26/2010 8:00 AM T T M 0.0 M
2/27/2010 7:00 AM 0.00 0.0 M M M
2/28/2010 7:00 AM T M M M M
3/1/2010 7:00 AM 0.00 0.0 M M M Total Feb precip was a dismal 0.19" vs. 0.77" normal. Trace precip was observed on 15 days.
3/2/2010 8:00 AM 0.00 0.0 M M M
3/3/2010 8:00 AM 0.00 0.0 M M M
3/4/2010 8:00 AM 0.04 M M M M
3/5/2010 8:00 AM 0.00 0.0 M M M
3/6/2010 8:00 AM 0.00 0.0 M M M
3/7/2010 7:00 AM 0.00 0.0 M M M
3/8/2010 8:00 AM 0.00 0.0 M M M
3/9/2010 7:10 AM 0.63 4.0 M 4.0 M Light snow, and 30 degrees currently. SWE is suspect, due to wet snow caking at top of gauge.
3/10/2010 8:00 AM 0.06 0.5 M 2.5 M
3/11/2010 8:00 AM 0.00 0.0 M 2.0 M
3/12/2010 8:00 AM 0.00 0.0 M 0.5 M
3/13/2010 7:30 AM T T M T M
3/14/2010 9:00 AM T T M 0.0 M
3/15/2010 8:00 AM 0.00 0.0 M M M
3/16/2010 8:00 AM 0.00 0.0 M M M
3/17/2010 8:00 AM 0.00 0.0 M M M
3/18/2010 8:00 AM 0.00 0.0 M M M
3/19/2010 8:00 AM 0.00 0.0 M M M
3/20/2010 8:00 AM 0.00 0.0 M M M
3/21/2010 8:00 AM 0.00 0.0 M M M
3/22/2010 8:00 AM 0.12 T M T M
3/23/2010 8:00 AM 0.01 T M 0.0 M
3/24/2010 8:00 AM T T M 0.0 M
3/25/2010 8:00 AM 0.00 0.0 M M M
3/26/2010 8:00 AM 0.05 T M T M
3/27/2010 8:00 AM T M M M M
3/28/2010 8:00 AM 0.00 0.0 M M M
3/29/2010 7:40 AM 0.03 0.0 M 0.0 M
3/30/2010 7:30 AM 0.52 1.0 M 1.0 M Crusted snow on gauge top may have affected catch.
3/31/2010 8:00 AM 0.07 0.5 M 0.5 M
4/1/2010 8:00 AM 0.00 0.0 M 0.0 M
4/2/2010 8:00 AM T T M T M
4/3/2010 8:00 AM 0.03 0.3 M 0.5 M
4/4/2010 8:00 AM T T M T M
4/5/2010 7:00 AM 0.00 0.0 M 0.0 M
4/6/2010 7:00 AM T T M 0.0 M
4/7/2010 7:30 AM T T M 0.0 M
4/8/2010 8:00 AM 0.00 0.0 M M M
4/9/2010 8:00 AM 0.05 0.4 M 0.5 M
4/10/2010 8:00 AM 0.00 0.0 M M M
4/11/2010 8:00 AM T 0.0 M 0.0 M
4/12/2010 7:40 AM 0.03 T M T M
4/13/2010 7:45 AM 0.16 T M T M Rain turned over to snow at 4 am., melting on impact. Currently moderate snow, temp of 31, with snow now accumulating on grassy and raised surfaces.
4/14/2010 8:00 AM 0.07 0.5 M 0.0 M
4/15/2010 7:00 AM 0.00 0.0 M M M
4/16/2010 7:30 AM 0.00 0.0 M M M
4/17/2010 8:00 AM 0.00 0.0 M M M
4/18/2010 8:00 AM 0.00 0.0 M M M
4/19/2010 8:00 AM 0.00 0.0 M M M
4/20/2010 8:00 AM 0.00 0.0 M M M
4/21/2010 7:00 AM T M M M M
4/22/2010 5:00 AM 0.36 M M M M Evening t-storms, with .36" rain.
4/26/2010 8:00 AM 0.00 0.0 M M M
4/27/2010 7:00 AM 0.00 0.0 M M M
4/28/2010 8:00 AM 0.02 T M 0.0 M
4/29/2010 7:00 AM T T M 0.0 M
4/30/2010 8:00 AM 0.01 T M 0.0 M Strong rain-shadow conditions kept valley precip to light sn/rn sprinkles.
5/1/2010 8:00 AM 0.00 0.0 M M M
5/2/2010 8:00 AM T T M 0.0 M
5/3/2010 8:00 AM T 0.0 M M M
5/4/2010 8:00 AM 0.04 0.1 M T M
5/5/2010 8:00 AM T T M 0.0 M With an overnight low of 22, good thing I covered my broc and peas.
5/6/2010 8:00 AM T T M 0.0 M
5/7/2010 8:00 AM 0.00 0.0 M M M
5/8/2010 8:00 AM 0.00 0.0 M M M
5/9/2010 8:00 AM T 0.0 M M M
5/10/2010 8:00 AM 0.00 0.0 M M M
5/11/2010 8:00 AM T 0.0 M M M
5/12/2010 7:30 AM 0.00 0.0 M M M
5/13/2010 8:00 AM 0.00 0.0 M M M
5/14/2010 8:00 AM 0.00 0.0 M M M
5/15/2010 8:00 AM 0.00 0.0 M M M
5/16/2010 8:00 AM T M M M M
5/17/2010 7:00 AM 0.00 0.0 M M M
5/18/2010 8:00 AM T M M M M
5/19/2010 7:00 AM 0.04 M M M M Severe drought conditions continue in the Bitterroot, with last night's 0.04" being just a drop in a very dry bucket.
5/20/2010 7:00 AM 0.03 0.0 M M M
5/21/2010 8:00 AM T T M 0.0 M A trace of snow yesterday, with an overnight low of 30. Springtime in the Rockies!
5/22/2010 8:00 AM 0.15 0.0 M M M
5/23/2010 8:00 AM T 0.0 M M M
5/24/2010 8:05 AM 0.09 T M 0.0 M The rain/snow line is currently at this 4300' location, with rain having turned over to snow at 6:40 am. Accumulating snow is visible above 5,000'. Currently: rain/snow mix with a temp of 33.
5/25/2010 8:00 AM 0.24 T M 0.0 M
5/26/2010 8:00 AM 0.00 0.0 M M M
5/27/2010 8:40 AM 0.30 M M M M Just a passing shower yesterday afternoon, with most of the reported .30" rain (exact reading) occurring since 7 a.m. this morning.
5/28/2010 8:00 AM 0.13 0.0 M M M
5/29/2010 8:10 AM 0.41 0.0 M M M Today's .41" brings the six-day total to 1.17". Great news for the Bitterroot, which has been under a 'severe drought' designation.
5/30/2010 8:00 AM 0.01 0.0 M M M
5/31/2010 8:00 AM 0.00 0.0 M M M
6/1/2010 7:00 AM 0.19 0.0 M M M Despite recent rains, total May precip at this Bitterroot location was somewhat below normal: 1.44" actual vs. 1.95" avg.
6/2/2010 8:00 AM 0.05 M M M M
6/3/2010 8:00 AM 0.16 0.0 M M M
6/4/2010 8:45 AM 0.05 0.0 M M M
6/5/2010 8:00 AM 0.38 M M M M
6/6/2010 8:00 AM 0.00 0.0 M M M
6/7/2010 8:00 AM 0.18 0.0 M M M
6/8/2010 8:00 AM 0.04 M M M M
6/9/2010 8:00 AM 0.00 0.0 M M M
6/10/2010 7:00 AM 0.27 0.0 M M M
6/11/2010 7:00 AM T M M M M
6/12/2010 8:00 AM T M M M M
6/13/2010 8:00 AM 0.00 0.0 M M M
6/14/2010 7:00 AM 0.00 0.0 M M M
6/15/2010 8:00 AM 0.21 M M M M
6/16/2010 8:10 AM 0.50 M M M M .50" is exact rain amount.
6/17/2010 7:20 AM 0.29 M M M M
6/18/2010 8:00 AM 0.03 M M M M
6/19/2010 8:00 AM 0.00 0.0 M M M
6/20/2010 8:00 AM T M M M M
6/21/2010 7:30 AM T M M M M
6/22/2010 8:00 AM T M M M M
6/26/2010 8:00 AM 0.02 M M M M
6/27/2010 7:00 AM 0.00 0.0 M M M
6/28/2010 8:00 AM 0.00 0.0 M M M
6/29/2010 7:00 AM 0.01 M M M M
6/30/2010 8:00 AM 0.41 M M M M Severe t-storm from 10:30-11:30 pm with vivid lightning, strong winds, and a brief loss of power. Ample rain mitigated fire start potential from intense lightning activity.
7/1/2010 6:30 AM 0.00 0.0 M M M Total June precip was well above normal: 2.79" actual vs. 1.73" average.
7/2/2010 7:40 AM T M M M M Light shower at obv time.
7/3/2010 7:00 AM 0.01 M M M M
7/4/2010 8:00 AM T M M M M Trace was from yesterday morning.
7/5/2010 8:00 AM 0.01 M M M M
7/6/2010 8:00 AM T M M M M
7/7/2010 7:00 AM 0.00 0.0 M M M
7/8/2010 8:00 AM 0.00 0.0 M M M
7/9/2010 8:00 AM 0.00 0.0 M M M
7/10/2010 8:00 AM 0.00 0.0 M M M
7/11/2010 8:00 AM 0.01 M M M M
7/12/2010 6:00 AM 0.00 0.0 M M M
7/13/2010 6:00 AM 0.00 0.0 M M M
7/14/2010 7:00 AM 0.00 0.0 M M M
7/15/2010 7:50 AM 0.00 0.0 M M M
7/16/2010 8:00 AM 0.00 0.0 M M M
7/17/2010 6:30 AM 0.00 0.0 M M M
7/18/2010 8:00 AM 0.00 0.0 M M M
7/19/2010 8:00 AM 0.00 0.0 M M M
7/20/2010 8:00 AM 0.00 0.0 M M M
7/21/2010 8:00 AM 0.00 0.0 M M M
7/22/2010 7:00 AM 0.00 0.0 M M M
7/23/2010 8:00 AM 0.00 0.0 M M M
7/24/2010 7:00 AM 0.00 0.0 M M M
7/25/2010 8:00 AM 0.00 0.0 M M M
7/26/2010 6:30 AM 0.00 0.0 M M M A significant wildfire broke out yesterday afternoon three miles east of here in the Sapphire mountains. Dry woodland fuels from a prolonged drought and a dry July allowed the fire to grow to nearly 100 acres, with torching clearly visible in the early evening. The fire settled down overnight, with slightly higher dew points and calmer winds.
7/27/2010 7:00 AM T M M M M Clouds, higher humidity, and a couple of sprinkles tampered the nearby Domonic Point wildfire. The fire is now estimated at between 500-1,000 acres, and crews are working to keep it from moving into the valley.
7/28/2010 7:00 AM 0.18 M M M M Clouds, lower temps, and .18" of rain have put a damper on the Dominic Point wildfire. Now estimated at 900 acres, the fire is far from out.
7/29/2010 8:00 AM 0.01 M M M M
7/30/2010 8:00 AM 0.00 0.0 M M M
7/31/2010 8:00 AM 0.05 M M M M
8/1/2010 7:30 AM 0.21 M M M M Quite the active weather day on Saturday, with a severe t-storm at 2 pm sparking a fire nearby, which the fire dept doused quickly. The day ended with marble-size hail after 9 pm. The .21" rain was much needed.
8/2/2010 7:30 AM 0.00 0.0 M M M
8/3/2010 7:20 AM 0.00 0.0 M M M Total July precip was 0.27", much below the 1.09" normal avg.
8/4/2010 7:00 AM 0.00 0.0 M M M
8/5/2010 7:30 AM T M M M M
8/6/2010 7:30 AM 0.00 0.0 M M M
8/7/2010 8:30 AM 0.07 M M M M
8/8/2010 8:00 AM T M M M M
8/9/2010 8:00 AM 0.01 M M M M
8/10/2010 7:20 AM 0.11 M M M M Moderate t-storm passed to the north after observation, replete with thunder and lightning, light showers, and a rainbow.
8/11/2010 8:00 AM 0.33 M M M M With a three-day rain total of .45" and yesterday's high of only 68, it's starting to feel like autumn.
8/12/2010 8:30 AM 0.04 M M M M
8/13/2010 8:30 AM 0.24 M M M M Rain over each of the last five days has yielded .73" total precip.
8/14/2010 8:00 AM 0.00 0.0 M M M
8/15/2010 8:00 AM 0.00 0.0 M M M
8/16/2010 8:00 AM 0.00 0.0 M M M
8/17/2010 7:30 AM 0.00 0.0 M M M
8/18/2010 8:00 AM 0.00 0.0 M M M
8/19/2010 7:30 AM 0.00 0.0 M M M
8/20/2010 7:30 AM 0.00 0.0 M M M
8/21/2010 8:00 AM 0.00 0.0 M M M
8/22/2010 8:00 AM 0.00 0.0 M M M
8/23/2010 7:10 AM 0.01 M M M M The Alder Creek Wildfire sprang to life yesterday in the nearby Sapphire Mountains. Driven by strong winds, it's now estimated at 500 acres, though overnight sprinkles have cooled it a bit. (Edit: fire name corrected.)
8/24/2010 8:00 AM 0.00 0.0 M M M
8/26/2010 8:00 AM 0.00 0.0 M M M
8/27/2010 8:30 AM T M M M M A severe, mainly dry t-storm blew through at 8 pm, sparking the Downing Mountain fire, 3 miles due west of Hamilton. The fire is throwing up plenty of smoke this morning, with numerous spot fires visible from across the valley. About 160 level I & II evacuation notices so far. Currently, 10-15 mph nw winds, with smoke limiting visibility to 8-10 miles.
8/28/2010 8:00 AM 0.00 0.0 M M M An overnight low of 44, a calm wind, and higher dew point has resulted in the pooling of valley smoke in and around Hamilton from the Downing Mountain wildfire.
8/29/2010 8:30 AM 0.05 M M M M
8/30/2010 8:30 AM 0.06 M M M M
8/31/2010 7:00 AM T M M M M
9/1/2010 8:00 AM T M M M M
9/2/2010 8:00 AM 0.07 M M M M August total precip was 1.13" vs. 1.15" normal. Currently, dense fog (vis < .25 mi) and a temp of 43.
9/3/2010 8:00 AM 0.00 0.0 M M M
9/4/2010 8:00 AM 0.00 0.0 M M M
9/5/2010 8:00 AM 0.00 0.0 M M M
9/6/2010 7:00 AM 0.01 M M M M Ice pellets mixed in briefly with yesterday's showers. The Bitterroot peaks received a light coating of snow.
9/7/2010 8:00 AM 0.00 0.0 M M M
9/8/2010 8:00 AM 0.00 0.0 M M M
9/9/2010 8:30 AM 0.42 M M M M A nice soaker, with .42" since midnight from a steady light to moderate rain.
9/10/2010 8:10 AM 0.17 M M M M Two-day storm total of .59", with snow on the Bitterroot peaks.
9/11/2010 7:00 AM T M M M M
9/12/2010 8:00 AM 0.00 0.0 M M M
9/13/2010 8:00 AM 0.00 0.0 M M M
9/14/2010 8:00 AM 0.01 M M M M An isolated t-storm rolled through at 6:30 p.m.
9/15/2010 8:00 AM 0.12 M M M M
9/16/2010 8:00 AM 0.00 0.0 M M M
9/17/2010 8:00 AM 0.05 M M M M
9/18/2010 8:00 AM T M M M M
9/19/2010 8:00 AM T M M M M
9/20/2010 8:00 AM 0.07 M M M M
9/21/2010 8:00 AM 0.00 0.0 M M M
9/22/2010 8:00 AM 0.00 0.0 M M M
9/23/2010 8:00 AM 0.00 0.0 M M M
9/24/2010 8:00 AM 0.00 0.0 M M M
9/25/2010 8:00 AM 0.00 0.0 M M M
9/26/2010 8:00 AM 0.00 0.0 M M M
9/27/2010 8:00 AM 0.00 0.0 M M M
9/28/2010 8:00 AM 0.00 0.0 M M M
9/29/2010 8:00 AM 0.00 0.0 M M M
9/30/2010 8:00 AM 0.00 0.0 M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
11/19/2009 11/20/2009 8:00 AM 2 T 0.0 0.00 Trace is from lingering daytime flurries on Nov 18.
2/24/2010 2/25/2010 6:30 AM 2 T 0.0 M
4/23/2010 4/25/2010 3:00 PM 3 0.02 0.0 0.00
6/23/2010 6/25/2010 8:00 AM 3 T M M Trace rain observed the afternoon of June 24.



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
5/23/2010 5:20 PM Hail fell much like wet snow, with temp dropping from 54 to 44 degrees. Currently: rain, and 44 degrees. 1/4" Pea Size Rice Rice Soft|White Ice 12 2min no damage False Before rain Same time as smaller hail
6/29/2010 2:28 PM Just a glancing blow from the more severe storm to the north. Only .05" rain. 1/4" Pea Size Rice Rice Mixed|White Ice 7 1min no damage True After rain Same time as smaller hail
9/1/2010 4:08 PM 1/4" Pea Size Rice Rice Mixed 5 1min no damage Continuous False Before rain Same time as smaller hail