Station Overview Station Location
Station Number WA-OK-20 Latitude 48.551951
Station Name Winthrop 5.5 N Longitude -120.190472
County Okanogan Elevation (ft) 2079



Month 30 Yr Avg by PRISM Total Prcp Sum Days Covered By All Observations Daily Prcp Sum Daily Observation Count Multiday Prcp Sum Days Covered by Multiday Observations Multiday Observation Count Days With Prcp Days With Trace Total Snowfall Days With Snowfall Days With Snow On Ground
Oct 12 1.24 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Nov 12 2.69 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Dec 12 3.51 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Jan 13 3.20 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Feb 13 2.09 0.02 11 0.02 11 0.00 0 0 2 0 0.1 1 0
March 13 1.49 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
April 13 0.82 0.74 27 0.55 7 0.19 20 1 4 0 1.5 1 0
May 13 1.13 0.08 31 0.00 7 0.08 24 1 0 0 0.0 0 0
June 13 1.22 1.52 30 0.00 5 1.52 25 1 0 0 0.0 0 0
July 13 0.76 0.00 31 0.00 0 0.00 31 0 0 0 0.0 0 0
Aug 13 0.48 1.01 31 0.07 5 0.94 26 1 2 0 0.0 0 0
Sept 13 0.55 3.47 30 0.59 9 2.88 21 1 5 0 0.0 0 0
Water Year Totals: 19.18" 6.84" 191 days 1.23" 44 5.61" 147 days 5 13 days 0 days 1.6" 2 days 0 days



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

Day of Year Daily Prcp Multiday Prcp
10/1/2012
10/2/2012
10/3/2012
10/4/2012
10/5/2012
10/6/2012
10/7/2012
10/8/2012
10/9/2012
10/10/2012
10/11/2012
10/12/2012
10/13/2012
10/14/2012
10/15/2012
10/16/2012
10/17/2012
10/18/2012
10/19/2012
10/20/2012
10/21/2012
10/22/2012
10/23/2012
10/24/2012
10/25/2012
10/26/2012
10/27/2012
10/28/2012
10/29/2012
10/30/2012
10/31/2012
11/1/2012
11/2/2012
11/3/2012
11/4/2012
11/5/2012
11/6/2012
11/7/2012
11/8/2012
11/9/2012
11/10/2012
11/11/2012
11/12/2012
11/13/2012
11/14/2012
11/15/2012
11/16/2012
11/17/2012
11/18/2012
11/19/2012
11/20/2012
11/21/2012
11/22/2012
11/23/2012
11/24/2012
11/25/2012
11/26/2012
11/27/2012
11/28/2012
11/29/2012
11/30/2012
12/1/2012
12/2/2012
12/3/2012
12/4/2012
12/5/2012
12/6/2012
12/7/2012
12/8/2012
12/9/2012
12/10/2012
12/11/2012
12/12/2012
12/13/2012
12/14/2012
12/15/2012
12/16/2012
12/17/2012
12/18/2012
12/19/2012
12/20/2012
12/21/2012
12/22/2012
12/23/2012
12/24/2012
12/25/2012
12/26/2012
12/27/2012
12/28/2012
12/29/2012
12/30/2012
12/31/2012
Day of YearDaily PrcpMultiday Prcp
1/1/2013
1/2/2013
1/3/2013
1/4/2013
1/5/2013
1/6/2013
1/7/2013
1/8/2013
1/9/2013
1/10/2013
1/11/2013
1/12/2013
1/13/2013
1/14/2013
1/15/2013
1/16/2013
1/17/2013
1/18/2013
1/19/2013
1/20/2013
1/21/2013
1/22/2013
1/23/2013
1/24/2013
1/25/2013
1/26/2013
1/27/2013
1/28/2013
1/29/2013
1/30/2013
1/31/2013
2/1/2013
2/2/2013
2/3/2013
2/4/2013
2/5/2013
2/6/2013
2/7/2013
2/8/2013
2/9/2013
2/10/2013
2/11/2013 0.00
2/12/2013 0.00
2/13/2013 0.00
2/14/2013 0.00
2/15/2013 0.00
2/16/2013 0.00
2/17/2013 0.01
2/18/2013 0.00
2/19/2013 0.01
2/20/2013 0.00
2/21/2013 0.00
2/22/2013
2/23/2013
2/24/2013
2/25/2013
2/26/2013
2/27/2013
2/28/2013
3/1/2013
3/2/2013
3/3/2013
3/4/2013
3/5/2013
3/6/2013
3/7/2013
3/8/2013
3/9/2013
3/10/2013
3/11/2013
3/12/2013
3/13/2013
3/14/2013
3/15/2013
3/16/2013
3/17/2013
3/18/2013
3/19/2013
3/20/2013
3/21/2013
3/22/2013
3/23/2013
3/24/2013
3/25/2013
3/26/2013
3/27/2013
3/28/2013
3/29/2013
3/30/2013
3/31/2013
Day of YearDaily PrcpMultiday Prcp
4/1/2013
4/2/2013
4/3/2013
4/4/2013
4/5/2013 0.06
4/6/2013 0.05
4/7/2013 0.10
4/8/2013 0.34 **
4/9/2013 **
4/10/2013 **
4/11/2013 **
4/12/2013 **
4/13/2013 **
4/14/2013 **
4/15/2013 **
4/16/2013 **
4/17/2013 **
4/18/2013 0.19
4/19/2013 0.00
4/20/2013 0.00
4/21/2013 0.00
4/22/2013 **
4/23/2013 **
4/24/2013 **
4/25/2013 **
4/26/2013 **
4/27/2013 **
4/28/2013 **
4/29/2013 **
4/30/2013 **
5/1/2013 **
5/2/2013 **
5/3/2013 0.08
5/4/2013 0.00
5/5/2013 0.00
5/6/2013 0.00
5/7/2013 0.00
5/8/2013 0.00
5/9/2013 0.00
5/10/2013 0.00
5/11/2013 **
5/12/2013 **
5/13/2013 **
5/14/2013 **
5/15/2013 **
5/16/2013 **
5/17/2013 **
5/18/2013 **
5/19/2013 **
5/20/2013 **
5/21/2013 **
5/22/2013 **
5/23/2013 **
5/24/2013 **
5/25/2013 **
5/26/2013 **
5/27/2013 **
5/28/2013 **
5/29/2013 **
5/30/2013 **
5/31/2013 **
6/1/2013 **
6/2/2013 **
6/3/2013 **
6/4/2013 **
6/5/2013 **
6/6/2013 1.52
6/7/2013 0.00
6/8/2013 0.00
6/9/2013 0.00
6/10/2013 0.00
6/11/2013 0.00
6/12/2013 **
6/13/2013 **
6/14/2013 **
6/15/2013 **
6/16/2013 **
6/17/2013 **
6/18/2013 **
6/19/2013 **
6/20/2013 **
6/21/2013 **
6/22/2013 **
6/23/2013 **
6/24/2013 **
6/25/2013 **
6/26/2013 **
6/27/2013 **
6/28/2013 **
6/29/2013 **
6/30/2013 **
Day of YearDaily PrcpMultiday Prcp
7/1/2013 **
7/2/2013 **
7/3/2013 **
7/4/2013 **
7/5/2013 **
7/6/2013 **
7/7/2013 **
7/8/2013 **
7/9/2013 **
7/10/2013 **
7/11/2013 **
7/12/2013 **
7/13/2013 **
7/14/2013 **
7/15/2013 **
7/16/2013 **
7/17/2013 **
7/18/2013 **
7/19/2013 **
7/20/2013 **
7/21/2013 **
7/22/2013 **
7/23/2013 **
7/24/2013 **
7/25/2013 **
7/26/2013 **
7/27/2013 **
7/28/2013 **
7/29/2013 **
7/30/2013 **
7/31/2013 **
8/1/2013 **
8/2/2013 0.94
8/3/2013 0.02
8/4/2013 0.00
8/5/2013 0.05
8/6/2013 0.00
8/7/2013 0.00
8/8/2013 **
8/9/2013 **
8/10/2013 **
8/11/2013 **
8/12/2013 **
8/13/2013 **
8/14/2013 **
8/15/2013 **
8/16/2013 **
8/17/2013 **
8/18/2013 **
8/19/2013 **
8/20/2013 **
8/21/2013 **
8/22/2013 **
8/23/2013 **
8/24/2013 **
8/25/2013 **
8/26/2013 **
8/27/2013 **
8/28/2013 **
8/29/2013 **
8/30/2013 **
8/31/2013 **
9/1/2013 **
9/2/2013 **
9/3/2013 **
9/4/2013 **
9/5/2013 **
9/6/2013 **
9/7/2013 **
9/8/2013 **
9/9/2013 **
9/10/2013 **
9/11/2013 **
9/12/2013 **
9/13/2013 **
9/14/2013 **
9/15/2013 **
9/16/2013 **
9/17/2013 **
9/18/2013 **
9/19/2013 **
9/20/2013 2.88
9/21/2013 0.00
9/22/2013 0.03
9/23/2013 0.04
9/24/2013 0.00
9/25/2013 0.07
9/26/2013 0.00
9/27/2013 0.00
9/28/2013 0.06
9/29/2013 0.39
9/30/2013 **



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
2/11/2013 7:00 AM 0.00 0.0 M M M some valley fog in Winthrop
2/12/2013 7:00 AM 0.00 0.0 M M M fog today. Visibility about 1/4-1/2 mile
2/13/2013 6:45 AM 0.00 0.0 M M M very windy, estimated 20-30 mph.
2/14/2013 7:00 AM 0.00 0.0 M M M overcast and breezy. Chinook came through 2/13, with temps reaching low 50s in the afternoon.
2/15/2013 7:00 AM 0.00 0.0 M M M 24 F and clear.
2/16/2013 6:30 AM 0.00 0.0 M M M 28 F and cloudy.
2/17/2013 7:00 AM 0.01 T T M M 30 and clear with wind from west at about 10 mph.
2/18/2013 7:00 AM 0.00 0.0 M M M 28 F and overcast
2/19/2013 6:30 AM 0.01 0.1 0.01 M M 30 and overcast.
2/20/2013 6:45 AM 0.00 0.0 M M M 18 F and clear.
2/21/2013 6:45 AM 0.00 0.0 M M M 21 F and overcast
4/5/2013 6:15 AM 0.06 M M M M Note: observation covers period from 4/4, 3pm to 4/5, 615pm.
4/6/2013 6:45 AM 0.05 M M M M
4/7/2013 7:00 AM 0.10 M M M M mixed wet snow and rain falling lightly at time of obs. Obs location is at 2000 feet. Temperature 35 F. New snow seen at 2500 feet and above.
4/8/2013 6:30 AM 0.34 1.5 M M M All precip fell as snow. Temp remained above freezing all day. Ranged from 33.5-36 F during the heaviest snow. snow report is maximum depth. All snow melted by 5 pm 4/7/13.
4/19/2013 7:00 AM 0.00 0.0 M M M
4/20/2013 7:00 AM 0.00 0.0 M M M
4/21/2013 7:00 AM 0.00 0.0 M M M snow flurries and spritzes of rain west of Mazama above 3500 feet during 4/20/13 PM. But, no precip at this site.
5/4/2013 7:00 AM 0.00 0.0 M M M smoke from eight mile controlled burn affecting visibility. Haze in Chewuch and Methow valleys.
5/5/2013 7:00 AM 0.00 0.0 M M M
5/6/2013 6:15 AM 0.00 0.0 M M M
5/7/2013 6:45 AM 0.00 0.0 M M M
5/8/2013 7:00 AM 0.00 0.0 M M M
5/9/2013 7:00 AM 0.00 0.0 M M M
5/10/2013 7:00 AM 0.00 0.0 M M M
6/7/2013 7:00 AM 0.00 0.0 M M M
6/8/2013 7:00 AM 0.00 0.0 M M M
6/9/2013 7:00 AM 0.00 0.0 M M M
6/10/2013 7:00 AM 0.00 0.0 M M M
6/11/2013 7:00 AM 0.00 0.0 M M M
8/3/2013 7:00 AM 0.02 M M M M
8/4/2013 7:00 AM 0.00 0.0 M M M
8/5/2013 6:00 AM 0.05 M M M M We were on the edge of several thunderstorm cells. Much heavier rain fell to the north and west, as we observed when we were cycling north along West Chewuch Road.
8/6/2013 7:00 AM 0.00 0.0 M M M
8/7/2013 7:00 AM 0.00 0.0 M M M
9/21/2013 7:00 AM 0.00 0.0 M M M
9/22/2013 7:00 AM 0.03 M M M M
9/23/2013 7:00 AM 0.04 M M M M Predicted "large storm" was a bust here. Rained for five minutes from 240-245pm and then again around 6pm.
9/24/2013 6:30 AM 0.00 0.0 M M M brief mist from a passing cloud around 2pm, but just a few drops fell.
9/25/2013 6:00 AM 0.07 M M M M Rained overnight, starting at around 930 pm.
9/26/2013 6:30 AM 0.00 0.0 M M M overcast, and smells like rain, but no drops.
9/27/2013 7:00 AM 0.00 0.0 M M M solid overcast sky.
9/28/2013 7:00 AM 0.06 M M M M light rain/mist falling at time of observation
9/29/2013 7:00 AM 0.39 M M M M valley fog this morning.



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
4/8/2013 4/18/2013 1:40 PM 11 0.19 M M
4/22/2013 5/03/2013 1:40 PM 12 0.08 M M most, if not all precip fell on 4/21 AM. Snow fell from 9-10am that day.
5/11/2013 6/06/2013 12:15 PM 27 1.52 M M
6/12/2013 8/02/2013 4:00 AM 52 0.94 M M
8/8/2013 9/20/2013 5:00 PM 44 2.88 M M
9/30/2013 10/11/2013 7:00 AM 12 0.22 M M



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