Station Overview Station Location
Station Number WA-WM-10 Latitude 47.11719
Station Name Thornton 0.3 SE Longitude -117.385722
County Whitman Elevation (ft) 2322



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 18 1.37 1.12 10 1.12 10 0.00 0 0 10 0 0.0 0 0
Nov 18 2.51 2.53 14 2.53 14 0.00 0 0 13 0 2.2 1 2
Dec 18 2.42 3.92 14 3.92 14 0.00 0 0 13 1 6.6 5 3
Jan 19 2.21 2.20 11 2.20 11 0.00 0 0 8 3 2.5 1 1
Feb 19 1.62 3.19 19 3.19 19 0.00 0 0 17 1 29.8 14 13
March 19 1.81 1.06 11 1.06 11 0.00 0 0 7 0 4.4 4 9
April 19 1.52 3.12 14 3.12 14 0.00 0 0 14 0 0.0 0 0
May 19 1.73 1.58 8 1.58 8 0.00 0 0 8 0 0.0 0 0
June 19 1.36 0.95 6 0.95 6 0.00 0 0 6 0 0.0 0 0
July 19 0.69 0.28 3 0.28 3 0.00 0 0 1 2 0.0 0 0
Aug 19 0.53 0.53 6 0.53 6 0.00 0 0 6 0 0.0 0 0
Sept 19 0.78 1.43 11 1.43 11 0.00 0 0 10 1 0.0 0 0
Water Year Totals: 18.55" 21.91" 127 days 21.91" 127 0.00" 0 days 0 113 days 8 days 45.5" 25 days 28 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
10/1/2018
10/2/2018 0.04
10/3/2018
10/4/2018
10/5/2018
10/6/2018 0.08
10/7/2018 0.11
10/8/2018
10/9/2018 0.13
10/10/2018
10/11/2018
10/12/2018
10/13/2018
10/14/2018
10/15/2018
10/16/2018
10/17/2018
10/18/2018
10/19/2018
10/20/2018
10/21/2018
10/22/2018
10/23/2018
10/24/2018 0.03
10/25/2018
10/26/2018 0.27
10/27/2018 0.13
10/28/2018 0.03
10/29/2018 0.08
10/30/2018
10/31/2018 0.22
11/1/2018 0.03
11/2/2018 0.28
11/3/2018
11/4/2018 0.28
11/5/2018
11/6/2018 0.03
11/7/2018 0.03
11/8/2018
11/9/2018
11/10/2018 0.01
11/11/2018
11/12/2018
11/13/2018
11/14/2018
11/15/2018
11/16/2018
11/17/2018
11/18/2018
11/19/2018
11/20/2018
11/21/2018
11/22/2018 0.05
11/23/2018 0.31
11/24/2018 0.82
11/25/2018 0.00
11/26/2018
11/27/2018 0.42
11/28/2018 0.18
11/29/2018 0.05
11/30/2018 0.04
12/1/2018 0.22
12/2/2018
12/3/2018
12/4/2018
12/5/2018
12/6/2018
12/7/2018
12/8/2018
12/9/2018
12/10/2018 0.24
12/11/2018 T
12/12/2018 0.79
12/13/2018 0.16
12/14/2018
12/15/2018
12/16/2018 0.16
12/17/2018 0.19
12/18/2018 0.83
12/19/2018 0.33
12/20/2018
12/21/2018 0.13
12/22/2018
12/23/2018 0.09
12/24/2018 0.36
12/25/2018
12/26/2018
12/27/2018 0.15
12/28/2018
12/29/2018 0.27
12/30/2018
12/31/2018
Day of YearDaily PrcpMultiday Prcp
1/1/2019
1/2/2019
1/3/2019 T
1/4/2019 0.12
1/5/2019
1/6/2019 0.01
1/7/2019 T
1/8/2019
1/9/2019 0.50
1/10/2019
1/11/2019
1/12/2019
1/13/2019
1/14/2019
1/15/2019
1/16/2019
1/17/2019 0.13
1/18/2019 0.42
1/19/2019 0.17
1/20/2019 T
1/21/2019 0.24
1/22/2019
1/23/2019 0.61
1/24/2019
1/25/2019
1/26/2019
1/27/2019
1/28/2019
1/29/2019
1/30/2019
1/31/2019
2/1/2019
2/2/2019 0.26
2/3/2019 0.11
2/4/2019 0.02
2/5/2019 0.18
2/6/2019 T
2/7/2019
2/8/2019 0.04
2/9/2019 0.08
2/10/2019
2/11/2019 0.27
2/12/2019 0.14
2/13/2019 0.83
2/14/2019
2/15/2019
2/16/2019 0.42
2/17/2019 0.05
2/18/2019 0.05
2/19/2019 0.00
2/20/2019 0.15
2/21/2019
2/22/2019
2/23/2019 0.04
2/24/2019
2/25/2019
2/26/2019 0.09
2/27/2019 0.06
2/28/2019 0.40
3/1/2019
3/2/2019
3/3/2019
3/4/2019
3/5/2019
3/6/2019 0.04
3/7/2019 0.14
3/8/2019
3/9/2019
3/10/2019
3/11/2019 0.00
3/12/2019 0.38
3/13/2019 0.25
3/14/2019 0.00
3/15/2019
3/16/2019
3/17/2019
3/18/2019 0.00
3/19/2019 0.00
3/20/2019
3/21/2019
3/22/2019
3/23/2019
3/24/2019
3/25/2019 0.08
3/26/2019
3/27/2019
3/28/2019 0.11
3/29/2019 0.06
3/30/2019
3/31/2019
Day of YearDaily PrcpMultiday Prcp
4/1/2019
4/2/2019
4/3/2019 0.17
4/4/2019
4/5/2019 0.04
4/6/2019 0.47
4/7/2019 0.45
4/8/2019 0.21
4/9/2019 0.26
4/10/2019 0.93
4/11/2019 0.09
4/12/2019
4/13/2019 0.05
4/14/2019 0.24
4/15/2019 0.06
4/16/2019
4/17/2019
4/18/2019
4/19/2019
4/20/2019 0.05
4/21/2019 0.05
4/22/2019
4/23/2019
4/24/2019
4/25/2019
4/26/2019
4/27/2019 0.05
4/28/2019
4/29/2019
4/30/2019
5/1/2019
5/2/2019
5/3/2019
5/4/2019
5/5/2019
5/6/2019
5/7/2019
5/8/2019
5/9/2019
5/10/2019
5/11/2019
5/12/2019
5/13/2019
5/14/2019
5/15/2019 0.03
5/16/2019 0.08
5/17/2019 0.24
5/18/2019 0.31
5/19/2019
5/20/2019
5/21/2019
5/22/2019
5/23/2019
5/24/2019 0.01
5/25/2019 0.21
5/26/2019 0.26
5/27/2019
5/28/2019
5/29/2019
5/30/2019
5/31/2019 0.44
6/1/2019
6/2/2019
6/3/2019
6/4/2019
6/5/2019
6/6/2019 0.13
6/7/2019 0.18
6/8/2019 0.24
6/9/2019
6/10/2019
6/11/2019
6/12/2019
6/13/2019
6/14/2019
6/15/2019
6/16/2019
6/17/2019
6/18/2019
6/19/2019
6/20/2019 0.03
6/21/2019 0.10
6/22/2019
6/23/2019
6/24/2019
6/25/2019
6/26/2019
6/27/2019 0.27
6/28/2019
6/29/2019
6/30/2019
Day of YearDaily PrcpMultiday Prcp
7/1/2019
7/2/2019
7/3/2019
7/4/2019
7/5/2019
7/6/2019
7/7/2019
7/8/2019
7/9/2019
7/10/2019
7/11/2019 T
7/12/2019
7/13/2019
7/14/2019
7/15/2019
7/16/2019 T
7/17/2019
7/18/2019
7/19/2019
7/20/2019
7/21/2019
7/22/2019
7/23/2019
7/24/2019 0.28
7/25/2019
7/26/2019
7/27/2019
7/28/2019
7/29/2019
7/30/2019
7/31/2019
8/1/2019
8/2/2019
8/3/2019
8/4/2019
8/5/2019
8/6/2019
8/7/2019
8/8/2019
8/9/2019 0.05
8/10/2019
8/11/2019 0.01
8/12/2019 0.22
8/13/2019
8/14/2019
8/15/2019
8/16/2019 0.12
8/17/2019
8/18/2019
8/19/2019
8/20/2019
8/21/2019
8/22/2019 0.08
8/23/2019
8/24/2019
8/25/2019
8/26/2019
8/27/2019
8/28/2019
8/29/2019
8/30/2019 0.05
8/31/2019
9/1/2019
9/2/2019
9/3/2019
9/4/2019
9/5/2019
9/6/2019 0.07
9/7/2019
9/8/2019
9/9/2019 0.22
9/10/2019 0.05
9/11/2019 0.08
9/12/2019
9/13/2019
9/14/2019
9/15/2019
9/16/2019
9/17/2019
9/18/2019
9/19/2019 0.06
9/20/2019 T
9/21/2019
9/22/2019
9/23/2019 0.12
9/24/2019
9/25/2019
9/26/2019
9/27/2019 0.18
9/28/2019 0.32
9/29/2019 0.31
9/30/2019 0.02



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/2/2018 8:00 AM 0.04 M M M M Just enough rain to temporarily settle the dust! Top soil moisture is still very dry
10/6/2018 6:00 AM 0.08 M M M M
10/7/2018 8:00 AM 0.11 M M M M
10/9/2018 8:00 AM 0.13 M M M M
10/24/2018 8:00 AM 0.03 M M M M
10/26/2018 8:00 AM 0.27 M M M M
10/27/2018 7:00 AM 0.13 M M M M Slowly starting to replenish top soil moisture!
10/28/2018 8:00 AM 0.03 M M M M
10/29/2018 8:00 AM 0.08 M M M M Every little bit of precip. is slowly helping replenish the top soil moisture
10/31/2018 8:00 AM 0.22 M M M M
11/1/2018 8:00 AM 0.03 M M M M
11/2/2018 8:00 AM 0.28 M M M M
11/4/2018 8:00 AM 0.28 M M M M
11/6/2018 8:00 AM 0.03 M M M M
11/7/2018 8:00 AM 0.03 M M M M another isolated cell that wandered through last evening. Every little bit adds up!
11/10/2018 8:00 AM 0.01 0.0 M 0.0 M
11/22/2018 8:00 AM 0.05 M M M M
11/23/2018 8:00 AM 0.31 M M M M
11/24/2018 8:00 AM 0.82 2.2 M 1.0 M We started with heavy rain last night, turning to snow. At one point I measured 2.5" before the temp warmed up to 33 degrees and the snow settled. The current temp is now 34 degrees and it is melting away fast!
11/25/2018 8:00 AM 0.00 0.0 M 0.5 M
11/27/2018 8:00 AM 0.42 M M 0.0 M
11/28/2018 8:00 AM 0.18 M M 0.0 M
11/29/2018 8:00 AM 0.05 M M M M
11/30/2018 8:00 AM 0.04 M M 0.0 M
12/1/2018 8:00 AM 0.22 T M T M A very light cover of sleet and graupel on the ground this morning. Happy to see the precipitation totals adding up to near normal for this location.
12/10/2018 8:00 AM 0.24 1.6 0.24 M M Temperature currently 34 degrees
12/11/2018 8:00 AM T 0.0 M 0.5 M
12/12/2018 8:00 AM 0.79 0.0 M 0.0 M Heavy rains last evening, some minor standing water in low ground as some frost is still in the profile
12/13/2018 8:00 AM 0.16 0.3 M M M
12/16/2018 8:00 AM 0.16 M M M M
12/17/2018 8:00 AM 0.19 0.0 M 0.0 M
12/18/2018 8:00 AM 0.83 M M M M I probed the ground and thank goodness no frost left! What a rain event! Creeks are up slightly up, but for the most part majority of the precipitation went in. Drain tile lines in the fields at 3' are starting to run, so nice to see the sub soil recharging!
12/19/2018 8:00 AM 0.33 M M M M Happy to report little if any erosion in the nearby fields, and creeks still low! It is always worrisome receiving over 1.0" of precipitation this time of year if there is frost in the ground! We lucked out!
12/21/2018 8:00 AM 0.13 M M M M
12/23/2018 8:00 AM 0.09 0.2 0.09 M M
12/24/2018 8:00 AM 0.36 M M M M
12/27/2018 8:00 AM 0.15 2.0 0.15 2.0 M
12/29/2018 8:00 AM 0.27 2.5 0.27 1.5 M Severe drifting again in the Palouse making data gathering a challenge! Currently 38 and the snow is melting quickly!
1/3/2019 7:30 AM T 0.0 M T M
1/4/2019 8:00 AM 0.12 0.0 M 0.0 M
1/6/2019 8:00 AM 0.01 0.0 M 0.0 M
1/7/2019 8:00 AM T M M M M
1/9/2019 8:00 AM 0.50 0.0 M 0.0 M
1/17/2019 8:00 AM 0.13 0.0 M 0.0 M 38 degrees and rain
1/18/2019 8:00 AM 0.42 0.0 M 0.0 M It was another nail biter as we had some surface frost in the ground again with a rain event. Luckily most of the precipitation as absorbed with little to no runoff.
1/19/2019 8:00 AM 0.17 M M M M
1/20/2019 8:00 AM T M M M M
1/21/2019 8:00 AM 0.24 M M M M
1/23/2019 8:00 AM 0.61 2.5 0.50 2.0 M I measured 2.5" of new snow last night at 11:30PM. The temp. rose from 32 to 38 in about 2 hours turning the precip. to rain. What a sloppy mess!
2/2/2019 8:00 AM 0.26 0.0 M 0.0 M
2/3/2019 8:00 AM 0.11 M M M M
2/4/2019 8:00 AM 0.02 0.0 M 0.0 M
2/5/2019 8:00 AM 0.18 2.5 0.18 2.5 M
2/6/2019 8:00 AM T T M 2.5 M
2/8/2019 8:00 AM 0.04 0.3 0.04 2.5 M
2/9/2019 8:00 AM 0.08 1.0 M 3.0 M With 35 MPH gusts and light powder snow on the ground from previous storms, it was hard to figure new snow totals from blowing and drifting snow.
2/11/2019 8:00 AM 0.27 4.5 0.27 6.5 M
2/12/2019 8:00 AM 0.14 3.0 0.14 7.0 M The temperature rose above freezing around 3:00am.It is currently 34 degrees and the snow has really settled, which should help from drifting when the winds kick back up.
2/13/2019 8:00 AM 0.83 6.2 0.83 11.5 M Heavy wet snow, no drifting for once!
2/16/2019 8:00 AM 0.42 3.0 0.42 8.0 M Heavy wet snow yesterday morning with the temperature at 32 degrees rising to 35 by mid morning turning the snow on the road to heavy slush. The total depth of snow has compacted and settled with the warmer temps.
2/17/2019 8:00 AM 0.05 0.5 0.05 8.5 M
2/18/2019 8:00 AM 0.05 0.5 0.05 8.5 M Some slight drifting last night.
2/19/2019 7:30 AM 0.00 0.0 0.00 8.5 0.26 The snow has compacted with an ice layer on top and layers of fluff and ice in the profile. The SWE was lower than I anticipated.
2/20/2019 8:00 AM 0.15 1.7 0.15 10.0 M
2/23/2019 8:00 AM 0.04 0.2 0.04 8.0 M
2/26/2019 8:00 AM 0.09 1.0 0.09 M M
2/27/2019 8:00 AM 0.06 0.8 0.06 M M
2/28/2019 8:00 AM 0.40 4.6 0.40 M M
3/6/2019 8:00 AM 0.04 0.2 0.04 9.0 M
3/7/2019 8:00 AM 0.14 1.0 0.08 7.5 M Rain and sleet late afternoon/ evening yesterday that turned to ice before we received the snow. It really settled the snow that was on the ground
3/11/2019 8:00 AM 0.00 0.0 M 10.5 M Due to drifting, I recalucated snow depth by taking measurements in five different spots in a radius of this station, then taking an average. The SWE was taken in a spot that reflected this depth of 10.5"". The ground below the snow is free if frost which will help with warmer temps on the horizon.
3/12/2019 8:00 AM 0.38 1.0 0.10 10.0 M At 5:30 am it was 35 degrees and rain. By 7:00am it dropped to 32 degrees turning to snow
3/13/2019 8:00 AM 0.25 2.2 0.25 10.5 M The total snow pack is really compacting into ice layers with the freeze/thaw cycles
3/14/2019 8:00 AM 0.00 0.0 M 8.5 M
3/18/2019 7:30 AM 0.00 0.0 0.00 6.5 M The snow pack remaining is very condensed but still layered. We are finally seeing the tops of hills on the south sides of slopes. Even with this warmer weather, it is still a long way from even thinking of spring field work!
3/19/2019 2:00 PM 0.00 0.0 0.00 6.0 1.94 This is the corrected SWE value from yesterday. There was an error on my part in measuring.
3/25/2019 7:00 AM 0.08 M M 1.0 0.15 South slopes of the fields are all but bare, with spotty snow and drifts remaining on the north sides of hills
3/28/2019 8:00 AM 0.11 0.0 M T M
3/29/2019 7:00 AM 0.06 0.0 M T M
4/3/2019 7:30 AM 0.17 M M T M Just a few snow drifts left on some north slopes and road side ditches from extreme drifting
4/5/2019 8:00 AM 0.04 M M M M
4/6/2019 7:30 AM 0.47 M M M M We had the first thunderstorm activity of the year yesterday with cloud to ground lightning and some periods of heavy downpours. There was some pockets of micro-burst winds just south of this location that resulted in some minor damage to trees and power lines.
4/7/2019 8:00 AM 0.45 M M M M
4/8/2019 8:00 AM 0.21 M M 0.0 M
4/9/2019 7:30 AM 0.26 M M M M
4/10/2019 7:00 AM 0.93 M M M M I was not expecting this. There was a quick and significant rise in the creeks around my area than ended up jumping it's banks causing minor flooding.
4/11/2019 7:30 AM 0.09 M M M M
4/13/2019 8:00 AM 0.05 M M M M
4/14/2019 8:00 AM 0.24 M M M M
4/15/2019 8:00 AM 0.06 M M M M
4/20/2019 9:00 AM 0.05 M M M M
4/21/2019 8:00 AM 0.05 M M M M
4/27/2019 7:00 AM 0.05 M M M M
5/15/2019 6:30 AM 0.03 M M M M
5/16/2019 7:00 AM 0.08 M M M M
5/17/2019 8:00 AM 0.24 M M M M A bulk of the precipitation went west of this station yesterday. It is currently raining steady at the time of this report.
5/18/2019 8:00 AM 0.31 M M M M
5/24/2019 8:00 AM 0.01 M M M M
5/25/2019 8:00 AM 0.21 M M M M
5/26/2019 8:00 AM 0.26 M M M M
5/31/2019 8:00 AM 0.44 M M M M Started with a very heavy band of precipitation and lightning for 20 minutes at 7:45 PM followed by steady rain. Everything seemed to go in the ground with no signs of washing
6/6/2019 9:00 AM 0.13 M M M M
6/7/2019 8:00 AM 0.18 M M M M This precipitation came from a rogue cell yesterday late afternoon that produced a brief but heavy downpour.
6/8/2019 8:00 AM 0.24 M M M M
6/20/2019 8:00 AM 0.03 M M M M Hopefully more on the way. These winds have taken a toll on the topsoil moisture!
6/21/2019 7:00 AM 0.10 M M M M
6/27/2019 8:00 AM 0.27 M M M M first heavy shower around 4:45PM with .16" second round was during the night with .11"
7/11/2019 7:00 AM T M M M M A rouge cell passed by around 1:00 am this morning with just enough precip to make the windows messy
7/16/2019 8:00 AM T M M M M
7/24/2019 8:00 AM 0.28 M M M M Happy to report no hail or severe runoff from this storm. This is the first measurable precip. at this station since 6/27
8/9/2019 8:00 AM 0.05 M M M M
8/11/2019 8:00 AM 0.01 M M M M
8/12/2019 8:00 AM 0.22 M M M M
8/16/2019 6:00 AM 0.12 M M M M This location was clipped by a narrow band with a brief downpour yesterday around 8:30 am
8/22/2019 8:00 AM 0.08 M M M M
8/30/2019 8:00 AM 0.05 M M M M
9/6/2019 8:00 AM 0.07 M M M M
9/9/2019 8:00 AM 0.22 M M M M
9/10/2019 8:00 AM 0.05 M M M M
9/11/2019 8:00 AM 0.08 M M M M
9/19/2019 8:00 AM 0.06 M M M M This station was just grazed by a heavy cell last night around 10 pm giving us .06". My neighbor recorded 1.30" just two miles north of this location!
9/20/2019 8:00 AM T M M M M
9/23/2019 8:00 AM 0.12 M M M M
9/27/2019 8:00 AM 0.18 M M M M A narrow band that brought a brief heavy downpour last evening around 7:00 PM
9/28/2019 9:00 AM 0.32 M M M M
9/29/2019 8:00 AM 0.31 T M T M
9/30/2019 8:00 AM 0.02 0.0 M 0.0 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