Station Overview Station Location
Station Number WA-MS-7 Latitude 47.283211
Station Name Shelton 4.9 NNW Longitude -123.134162
County Mason Elevation (ft) 335



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 6.51 10.90 20 10.90 20 0.00 0 0 9 1 0.0 0 0
Nov 10 12.89 8.60 23 7.59 18 1.01 5 1 14 1 6.5 1 2
Dec 10 11.96 17.28 25 13.34 16 3.94 9 3 11 0 0.0 0 0
Jan 11 11.44 9.59 17 9.59 17 0.00 0 0 12 1 4.5 1 1
Feb 11 8.31 4.98 17 2.86 14 2.12 3 1 7 1 0.0 0 0
March 11 7.66 13.25 23 12.94 21 0.31 2 1 21 0 0.0 0 0
April 11 5.11 5.95 21 5.75 18 0.20 3 1 8 1 0.0 0 0
May 11 2.96 4.39 20 3.77 18 0.62 2 1 9 0 0.0 0 0
June 11 2.02 0.16 13 0.16 13 0.00 0 0 3 1 0.0 0 0
July 11 0.94 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Aug 11 1.18 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Sept 11 2.25 4.83 15 4.83 15 0.00 0 0 8 1 0.0 0 0
Water Year Totals: 73.23" 79.93" 194 days 71.73" 170 8.20" 24 days 8 102 days 7 days 11.0" 2 days 3 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
10/2/2010 0.00
10/3/2010
10/4/2010
10/5/2010
10/6/2010 0.00
10/7/2010 0.00
10/8/2010
10/9/2010 1.22
10/10/2010 3.75
10/11/2010 0.00
10/12/2010 0.00
10/13/2010
10/14/2010 0.00
10/15/2010 T
10/16/2010 0.00
10/17/2010 0.00
10/18/2010 0.00
10/19/2010
10/20/2010
10/21/2010 0.00
10/22/2010 0.10
10/23/2010 0.32
10/24/2010 1.62
10/25/2010 1.90
10/26/2010 1.32
10/27/2010
10/28/2010 0.57
10/29/2010 0.10
10/30/2010
10/31/2010
11/1/2010
11/2/2010
11/3/2010 0.10
11/4/2010 0.00
11/5/2010 0.00
11/6/2010
11/7/2010 0.55
11/8/2010 0.02
11/9/2010
11/10/2010 1.01
11/11/2010
11/12/2010 0.15
11/13/2010 T
11/14/2010 0.05
11/15/2010 0.01
11/16/2010 0.20
11/17/2010 0.22
11/18/2010 1.28
11/19/2010
11/20/2010 1.13
11/21/2010 0.00
11/22/2010
11/23/2010 0.65
11/24/2010
11/25/2010 0.02 **
11/26/2010 **
11/27/2010 **
11/28/2010 **
11/29/2010 1.01
11/30/2010 2.20
12/1/2010
12/2/2010
12/3/2010
12/4/2010 0.00
12/5/2010 0.00
12/6/2010 0.00
12/7/2010 0.40
12/8/2010 2.25
12/9/2010 **
12/10/2010 **
12/11/2010 1.74
12/12/2010 5.65
12/13/2010 0.88
12/14/2010 **
12/15/2010 **
12/16/2010 1.30
12/17/2010 0.00
12/18/2010
12/19/2010 **
12/20/2010 **
12/21/2010 0.90
12/22/2010 0.10
12/23/2010 0.22
12/24/2010 1.16
12/25/2010 0.81
12/26/2010 0.25
12/27/2010 0.72
12/28/2010 0.90
12/29/2010
12/30/2010
12/31/2010 0.00
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
1/6/2011 1.00
1/7/2011 0.78
1/8/2011 0.02
1/9/2011
1/10/2011
1/11/2011 0.02
1/12/2011 2.75
1/13/2011 1.52
1/14/2011
1/15/2011 0.08
1/16/2011 2.15
1/17/2011 0.62
1/18/2011
1/19/2011 T
1/20/2011
1/21/2011 0.28
1/22/2011 0.02
1/23/2011
1/24/2011 0.35
1/25/2011
1/26/2011
1/27/2011
1/28/2011
1/29/2011
1/30/2011
1/31/2011
2/1/2011
2/2/2011
2/3/2011
2/4/2011 0.52
2/5/2011 0.05
2/6/2011
2/7/2011 0.40
2/8/2011 0.38
2/9/2011 0.00
2/10/2011 0.00
2/11/2011 0.00
2/12/2011
2/13/2011 0.81 **
2/14/2011 **
2/15/2011 2.12
2/16/2011 0.45
2/17/2011
2/18/2011 T
2/19/2011 0.25
2/20/2011 0.00
2/21/2011 0.00
2/22/2011
2/23/2011
2/24/2011
2/25/2011
2/26/2011 0.00
2/27/2011
2/28/2011
3/1/2011
3/2/2011
3/3/2011 0.32
3/4/2011 0.29
3/5/2011 0.35
3/6/2011
3/7/2011
3/8/2011 0.40
3/9/2011 0.62
3/10/2011 1.62
3/11/2011 0.65
3/12/2011
3/13/2011 0.72
3/14/2011 1.30
3/15/2011 1.00
3/16/2011 1.05
3/17/2011 0.25
3/18/2011
3/19/2011 **
3/20/2011 0.31
3/21/2011
3/22/2011 0.24
3/23/2011 0.14
3/24/2011 0.11
3/25/2011 0.44
3/26/2011 0.20
3/27/2011 0.38
3/28/2011
3/29/2011 0.78
3/30/2011 0.85
3/31/2011 1.23
Day of YearDaily PrcpMultiday Prcp
4/1/2011 0.92
4/2/2011 0.34
4/3/2011
4/4/2011
4/5/2011
4/6/2011
4/7/2011
4/8/2011 0.00
4/9/2011 0.00
4/10/2011 0.52
4/11/2011
4/12/2011 0.00
4/13/2011 0.00
4/14/2011
4/15/2011 1.00
4/16/2011 0.35
4/17/2011 **
4/18/2011 **
4/19/2011 0.20
4/20/2011 0.00
4/21/2011 0.00
4/22/2011 0.00
4/23/2011 0.00
4/24/2011 T
4/25/2011 0.78
4/26/2011 0.36
4/27/2011
4/28/2011 1.48
4/29/2011 0.00
4/30/2011
5/1/2011 0.00
5/2/2011 0.00
5/3/2011 0.28
5/4/2011
5/5/2011 0.00
5/6/2011 **
5/7/2011 0.62
5/8/2011
5/9/2011
5/10/2011
5/11/2011 0.03
5/12/2011 0.81
5/13/2011 0.21
5/14/2011 0.00
5/15/2011 1.25
5/16/2011 0.55
5/17/2011 0.00
5/18/2011 0.00
5/19/2011
5/20/2011 0.00
5/21/2011 0.02
5/22/2011
5/23/2011
5/24/2011
5/25/2011
5/26/2011 0.32
5/27/2011 0.30
5/28/2011
5/29/2011
5/30/2011 0.00
5/31/2011 0.00
6/1/2011 0.02
6/2/2011 0.07
6/3/2011
6/4/2011 0.00
6/5/2011 0.00
6/6/2011 0.00
6/7/2011 0.00
6/8/2011 T
6/9/2011 0.00
6/10/2011 0.00
6/11/2011 0.00
6/12/2011
6/13/2011 0.07
6/14/2011
6/15/2011
6/16/2011
6/17/2011
6/18/2011
6/19/2011
6/20/2011
6/21/2011
6/22/2011
6/23/2011 0.00
6/24/2011 0.00
6/25/2011
6/26/2011
6/27/2011
6/28/2011
6/29/2011
6/30/2011
Day of YearDaily PrcpMultiday Prcp
7/1/2011
7/2/2011
7/3/2011
7/4/2011
7/5/2011
7/6/2011
7/7/2011
7/8/2011
7/9/2011
7/10/2011
7/11/2011
7/12/2011
7/13/2011
7/14/2011
7/15/2011
7/16/2011
7/17/2011
7/18/2011
7/19/2011
7/20/2011
7/21/2011
7/22/2011
7/23/2011
7/24/2011
7/25/2011
7/26/2011
7/27/2011
7/28/2011
7/29/2011
7/30/2011
7/31/2011
8/1/2011
8/2/2011
8/3/2011
8/4/2011
8/5/2011
8/6/2011
8/7/2011
8/8/2011
8/9/2011
8/10/2011
8/11/2011
8/12/2011
8/13/2011
8/14/2011
8/15/2011
8/16/2011
8/17/2011
8/18/2011
8/19/2011
8/20/2011
8/21/2011
8/22/2011
8/23/2011
8/24/2011
8/25/2011
8/26/2011
8/27/2011
8/28/2011
8/29/2011
8/30/2011
8/31/2011
9/1/2011
9/2/2011
9/3/2011
9/4/2011
9/5/2011
9/6/2011
9/7/2011
9/8/2011
9/9/2011
9/10/2011
9/11/2011
9/12/2011
9/13/2011
9/14/2011
9/15/2011
9/16/2011 0.00
9/17/2011 T
9/18/2011 0.70
9/19/2011 0.15
9/20/2011 0.00
9/21/2011 0.00
9/22/2011 0.07
9/23/2011 0.10
9/24/2011 0.00
9/25/2011 0.14
9/26/2011 0.32
9/27/2011 3.25
9/28/2011 0.10
9/29/2011 0.00
9/30/2011 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/2/2010 6:00 AM 0.00 0.0 M M M
10/6/2010 6:00 AM 0.00 0.0 M M M
10/7/2010 6:00 AM 0.00 0.0 M M M
10/9/2010 9:00 AM 1.22 M M M M
10/10/2010 7:00 AM 3.75 M M M M
10/11/2010 6:00 AM 0.00 0.0 M M M
10/12/2010 5:00 AM 0.00 0.0 M M M
10/14/2010 6:00 AM 0.00 0.0 M M M
10/15/2010 6:00 AM T M M M M
10/16/2010 6:00 AM 0.00 0.0 M M M
10/17/2010 6:00 AM 0.00 0.0 M M M
10/18/2010 6:00 AM 0.00 0.0 M M M
10/21/2010 6:00 AM 0.00 0.0 M M M
10/22/2010 6:00 AM 0.10 M M M M
10/23/2010 6:00 AM 0.32 M M M M
10/24/2010 7:00 AM 1.62 M M M M thunder and lightening at 7 am
10/25/2010 8:30 AM 1.90 M M M M
10/26/2010 8:00 AM 1.32 M M M M
10/28/2010 1:00 PM 0.57 M M M M
10/29/2010 8:00 AM 0.10 M M M M
11/3/2010 6:00 AM 0.10 M M M M
11/4/2010 6:00 AM 0.00 0.0 M M M
11/5/2010 6:00 AM 0.00 0.0 M M M
11/7/2010 8:00 AM 0.55 M M M M
11/8/2010 7:00 AM 0.02 M M M M
11/10/2010 7:00 AM 1.01 M M M M
11/12/2010 12:00 PM 0.15 M M M M
11/13/2010 7:00 AM T M M M M
11/14/2010 7:00 AM 0.05 M M M M
11/15/2010 7:00 AM 0.01 M M M M
11/16/2010 6:00 AM 0.20 M M M M
11/17/2010 7:00 AM 0.22 M M M M
11/18/2010 2:00 PM 1.28 M M M M Slushy rail thru the morning.
11/20/2010 7:00 AM 1.13 M M M M
11/21/2010 6:00 AM 0.00 0.0 M M M
11/23/2010 6:00 AM 0.65 6.5 M 6.5 M
11/25/2010 6:00 AM 0.02 T M 6.5 M
11/30/2010 8:00 AM 2.20 M M M M
12/4/2010 6:00 AM 0.00 0.0 M M M
12/5/2010 6:00 AM 0.00 0.0 M M M
12/6/2010 6:00 AM 0.00 0.0 M M M
12/7/2010 8:00 AM 0.40 M M M M
12/8/2010 8:00 AM 2.25 M M M M
12/12/2010 8:00 AM 5.65 M M M M
12/13/2010 7:00 AM 0.88 M M M M
12/17/2010 6:00 AM 0.00 0.0 M M M
12/22/2010 7:00 AM 0.10 M M M M
12/23/2010 8:00 AM 0.22 M M M M
12/24/2010 8:00 AM 1.16 M M M M
12/25/2010 7:00 AM 0.81 M M M M
12/26/2010 8:00 AM 0.25 M M M M
12/27/2010 8:00 AM 0.72 M M M M
12/28/2010 6:00 AM 0.90 M M M M
12/31/2010 6:00 AM 0.00 0.0 M M M
1/1/2011 6:00 AM 0.00 0.0 M M M
1/2/2011 6:00 AM 0.00 0.0 M M M
1/3/2011 6:00 AM 0.00 0.0 M M M
1/4/2011 7:00 AM 0.00 0.0 M M M
1/6/2011 8:00 AM 1.00 M M M M
1/7/2011 11:00 AM 0.78 M M M M
1/8/2011 6:00 AM 0.02 M M M M
1/11/2011 6:00 AM 0.02 M M M M Much of this came as big fluffy snow flakes that melted before there was much accumulation.
1/12/2011 11:00 AM 2.75 4.5 M 4.5 M Snow fell thru the night before changing over to heavy rain as temps warmed.
1/13/2011 8:00 AM 1.52 M M M M
1/15/2011 6:00 AM 0.08 M M M M
1/16/2011 9:00 AM 2.15 M M M M
1/17/2011 6:30 AM 0.62 M M M M
1/19/2011 8:00 AM T M M M M
1/21/2011 8:00 AM 0.28 M M M M
1/22/2011 6:00 AM 0.02 M M M M
1/24/2011 8:00 AM 0.35 M M M M
2/4/2011 9:00 AM 0.52 M M M M
2/5/2011 9:00 AM 0.05 M M M M
2/7/2011 8:00 AM 0.40 M M M M
2/8/2011 6:00 AM 0.38 M M M M
2/9/2011 9:00 AM 0.00 0.0 M M M
2/10/2011 7:00 AM 0.00 0.0 M M M
2/11/2011 6:00 AM 0.00 0.0 M M M
2/13/2011 7:00 AM 0.81 M M M M
2/16/2011 8:00 AM 0.45 M M M M
2/18/2011 6:00 AM T M M M M
2/19/2011 8:00 AM 0.25 M M M M
2/20/2011 6:00 AM 0.00 0.0 M M M
2/21/2011 6:00 AM 0.00 0.0 M M M
2/26/2011 6:00 AM 0.00 0.0 M M M
3/3/2011 6:00 AM 0.32 M M M M
3/4/2011 11:00 AM 0.29 M M M M
3/5/2011 7:00 AM 0.35 M M M M
3/8/2011 7:00 AM 0.40 M M M M
3/9/2011 7:00 AM 0.62 M M M M
3/10/2011 6:00 AM 1.62 M M M M
3/11/2011 6:00 AM 0.65 M M M M
3/13/2011 7:00 AM 0.72 M M M M
3/14/2011 7:00 AM 1.30 M M M M
3/15/2011 7:00 AM 1.00 M M M M
3/16/2011 7:00 AM 1.05 M M M M
3/17/2011 7:00 AM 0.25 M M M M
3/22/2011 6:00 PM 0.24 M M M M
3/23/2011 6:00 PM 0.14 M M M M
3/24/2011 6:00 PM 0.11 M M M M
3/25/2011 6:00 PM 0.44 M M M M
3/26/2011 8:00 AM 0.20 M M M M
3/27/2011 8:00 AM 0.38 M M M M
3/29/2011 6:00 PM 0.78 M M M M
3/30/2011 6:00 PM 0.85 M M M M
3/31/2011 6:00 PM 1.23 M M M M
4/1/2011 6:00 PM 0.92 M M M M
4/2/2011 6:00 AM 0.34 M M M M
4/8/2011 6:00 AM 0.00 0.0 M M M
4/9/2011 6:00 AM 0.00 0.0 M M M
4/10/2011 3:00 PM 0.52 M M M M
4/12/2011 6:00 AM 0.00 0.0 M M M
4/13/2011 5:00 AM 0.00 0.0 M M M
4/15/2011 6:00 AM 1.00 M M M M
4/16/2011 6:00 AM 0.35 M M M M
4/20/2011 6:00 AM 0.00 0.0 M M M
4/21/2011 6:00 AM 0.00 0.0 M M M
4/22/2011 6:00 AM 0.00 0.0 M M M below freezing this morning, but DRY!!!
4/23/2011 6:00 AM 0.00 0.0 M M M
4/24/2011 6:00 AM T M M M M
4/25/2011 7:00 AM 0.78 M M M M
4/26/2011 6:00 AM 0.36 M M M M
4/28/2011 6:00 AM 1.48 M M M M
4/29/2011 6:00 AM 0.00 0.0 M M M
5/1/2011 6:00 AM 0.00 0.0 M M M
5/2/2011 6:00 AM 0.00 0.0 M M M
5/3/2011 6:00 AM 0.28 M M M M
5/5/2011 6:00 AM 0.00 0.0 M M M
5/11/2011 6:00 AM 0.03 M M M M
5/12/2011 7:00 AM 0.81 M M M M
5/13/2011 6:00 AM 0.21 M M M M
5/14/2011 6:00 AM 0.00 0.0 M M M
5/15/2011 6:00 AM 1.25 M M M M
5/16/2011 6:00 AM 0.55 M M M M
5/17/2011 6:00 AM 0.00 0.0 M M M
5/18/2011 6:00 AM 0.00 0.0 M M M
5/20/2011 6:00 AM 0.00 0.0 M M M
5/21/2011 6:00 AM 0.02 M M M M
5/26/2011 5:00 AM 0.32 M M M M
5/27/2011 5:00 AM 0.30 M M M M
5/30/2011 6:00 AM 0.00 0.0 M M M very cook, low-mid 50's, and cloudy. Where is spring....
5/31/2011 6:00 AM 0.00 0.0 M M M
6/1/2011 6:00 AM 0.02 M M M M
6/2/2011 6:00 AM 0.07 M M M M
6/4/2011 5:00 AM 0.00 0.0 M M M
6/5/2011 6:00 AM 0.00 0.0 M M M
6/6/2011 6:00 AM 0.00 0.0 M M M
6/7/2011 6:00 AM 0.00 0.0 M M M
6/8/2011 6:00 AM T M M M M
6/9/2011 6:00 AM 0.00 0.0 M M M
6/10/2011 6:00 AM 0.00 0.0 M M M
6/11/2011 6:00 AM 0.00 0.0 M M M
6/13/2011 6:00 AM 0.07 M M M M
6/23/2011 6:00 AM 0.00 0.0 M M M
6/24/2011 6:00 AM 0.00 0.0 M M M
9/16/2011 9:00 AM 0.00 0.0 M M M heavy dew, at the most
9/17/2011 7:00 AM T M M M M
9/18/2011 7:00 AM 0.70 M M M M began as showers, moved into steady rain 4 PM thru the night, back to showers at 7 AM Sunday
9/19/2011 8:00 AM 0.15 M M M M
9/20/2011 7:00 AM 0.00 0.0 M M M
9/21/2011 7:00 AM 0.00 0.0 M M M
9/22/2011 7:00 AM 0.07 M M M M
9/23/2011 7:00 AM 0.10 M M M M
9/24/2011 7:00 AM 0.00 0.0 M M M
9/25/2011 7:00 AM 0.14 M M M M
9/26/2011 7:00 AM 0.32 M M M M
9/27/2011 7:00 AM 3.25 M M M M The rain yesterday was non-stop and heavy.
9/28/2011 7:00 AM 0.10 M M M M
9/29/2011 7:00 AM 0.00 0.0 M M M
9/30/2011 5:00 AM 0.00 0.0 M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
11/25/2010 11/29/2010 2:00 PM 5 1.01 M M
12/9/2010 12/11/2010 8:00 AM 3 1.74 M M
12/14/2010 12/16/2010 11:00 AM 3 1.30 M M
12/19/2010 12/21/2010 9:00 AM 3 0.90 M M very light snow on morning of Dec. 19 which melted before there was a chance to measure it.
2/13/2011 2/15/2011 8:00 AM 3 2.12 M M
3/19/2011 3/20/2011 4:00 PM 2 0.31 M M
4/17/2011 4/19/2011 4:00 PM 3 0.20 M M
5/6/2011 5/07/2011 6:30 AM 2 0.62 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