Station Overview Station Location
Station Number WA-SG-55 Latitude 48.407451
Station Name Mount Vernon 1.2 SE Longitude -122.298662
County Skagit Elevation (ft) 295



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 19 4.92 5.26 29 5.26 26 0.00 3 1 17 0 0.0 0 0
Nov 19 10.53 2.87 30 2.68 20 0.19 10 2 9 0 0.0 0 0
Dec 19 11.97 3.33 23 1.29 13 2.04 10 4 13 0 0.0 0 0
Jan 20 10.12 8.57 31 6.26 22 2.31 9 4 22 0 7.4 3 0
Feb 20 7.66 6.22 29 5.25 14 0.97 15 2 14 0 0.0 0 0
March 20 7.52 4.30 31 2.64 11 1.66 20 4 11 0 0.0 0 0
April 20 6.19 1.57 28 1.48 10 0.09 18 3 9 0 0.0 0 0
May 20 4.43 2.81 24 0.06 2 2.75 22 6 2 0 0.0 0 0
June 20 3.04 4.71 23 3.50 19 1.21 4 2 16 0 0.0 0 0
July 20 1.15 1.07 30 0.84 7 0.23 23 3 5 0 0.0 0 0
Aug 20 1.18 1.02 31 0.73 6 0.29 25 5 6 0 0.0 0 0
Sept 20 2.12 1.31 28 1.21 7 0.10 21 2 6 0 0.0 0 0
Water Year Totals: 70.83" 43.04" 337 days 31.20" 157 11.84" 180 days 38 130 days 0 days 7.4" 3 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
10/1/2019 0.00
10/2/2019 0.00
10/3/2019 0.00
10/4/2019 0.11
10/5/2019 0.12
10/6/2019 0.05
10/7/2019 0.13
10/8/2019 0.51
10/9/2019 0.11
10/10/2019 0.03
10/11/2019 **
10/12/2019 **
10/13/2019 0.00
10/14/2019 0.00
10/15/2019 0.00
10/16/2019 0.11
10/17/2019 0.51
10/18/2019 0.56
10/19/2019 0.09
10/20/2019 0.33
10/21/2019 0.23
10/22/2019 2.17
10/23/2019 0.03
10/24/2019
10/25/2019 0.01
10/26/2019 0.16
10/27/2019 0.00
10/28/2019
10/29/2019 0.00
10/30/2019 0.00
10/31/2019 0.00
11/1/2019 0.00
11/2/2019 0.00
11/3/2019 0.00
11/4/2019 0.00
11/5/2019 0.00
11/6/2019 0.00
11/7/2019 0.00
11/8/2019 0.00
11/9/2019 0.05
11/10/2019 0.14
11/11/2019 0.01
11/12/2019 0.17
11/13/2019 0.08
11/14/2019 0.00
11/15/2019 0.24
11/16/2019 0.00
11/17/2019 0.91
11/18/2019 0.19
11/19/2019 0.89
11/20/2019 **
11/21/2019 **
11/22/2019 0.00
11/23/2019 0.00
11/24/2019 **
11/25/2019 0.19
11/26/2019 **
11/27/2019 **
11/28/2019 **
11/29/2019 **
11/30/2019 **
12/1/2019 **
12/2/2019 0.02
12/3/2019 0.02
12/4/2019 0.07
12/5/2019 0.07
12/6/2019 0.02
12/7/2019 **
12/8/2019 0.46
12/9/2019 **
12/10/2019 **
12/11/2019 **
12/12/2019 0.04
12/13/2019 0.40
12/14/2019 0.04
12/15/2019 0.06
12/16/2019 0.03
12/17/2019 0.02
12/18/2019 0.02
12/19/2019 0.05
12/20/2019 0.31
12/21/2019
12/22/2019
12/23/2019
12/24/2019
12/25/2019
12/26/2019
12/27/2019
12/28/2019
12/29/2019 **
12/30/2019 1.52
12/31/2019 0.18
Day of YearDaily PrcpMultiday Prcp
1/1/2020 **
1/2/2020 0.82
1/3/2020 0.32
1/4/2020 0.45
1/5/2020 0.05
1/6/2020 0.25
1/7/2020 1.21
1/8/2020 0.23
1/9/2020 0.02
1/10/2020 0.24
1/11/2020 **
1/12/2020 **
1/13/2020 1.25
1/14/2020 0.03
1/15/2020 0.61
1/16/2020 0.04
1/17/2020 0.05
1/18/2020 **
1/19/2020 0.05
1/20/2020 **
1/21/2020 0.19
1/22/2020 0.10
1/23/2020 0.63
1/24/2020 0.16
1/25/2020 0.29
1/26/2020 0.08
1/27/2020 0.04
1/28/2020 0.48
1/29/2020 0.45
1/30/2020 0.09
1/31/2020 0.44
2/1/2020 0.44
2/2/2020 0.16
2/3/2020 0.08
2/4/2020 0.03
2/5/2020 1.00
2/6/2020 1.45
2/7/2020 0.59
2/8/2020 0.64
2/9/2020 **
2/10/2020 0.04
2/11/2020 0.02
2/12/2020 0.17
2/13/2020 **
2/14/2020 **
2/15/2020 **
2/16/2020 **
2/17/2020 **
2/18/2020 **
2/19/2020 **
2/20/2020 **
2/21/2020 0.93
2/22/2020 0.03
2/23/2020 0.41
2/24/2020 0.21
2/25/2020 0.02
2/26/2020 **
2/27/2020 **
2/28/2020 **
2/29/2020 **
3/1/2020 **
3/2/2020 **
3/3/2020 1.26
3/4/2020 0.22
3/5/2020 0.02
3/6/2020 0.51
3/7/2020 **
3/8/2020 0.33
3/9/2020 **
3/10/2020 **
3/11/2020 **
3/12/2020 **
3/13/2020 **
3/14/2020 **
3/15/2020 **
3/16/2020 0.07
3/17/2020 **
3/18/2020 **
3/19/2020 **
3/20/2020 **
3/21/2020 **
3/22/2020 **
3/23/2020 0.00
3/24/2020 0.31
3/25/2020 0.14
3/26/2020 0.03
3/27/2020 0.03
3/28/2020 0.04
3/29/2020 0.02
3/30/2020 0.91
3/31/2020 0.41
Day of YearDaily PrcpMultiday Prcp
4/1/2020 0.14
4/2/2020 0.02
4/3/2020 0.04
4/4/2020 0.14
4/5/2020 **
4/6/2020 **
4/7/2020 **
4/8/2020 **
4/9/2020 **
4/10/2020 **
4/11/2020 0.00
4/12/2020 0.02
4/13/2020 **
4/14/2020 **
4/15/2020 **
4/16/2020 **
4/17/2020 **
4/18/2020 **
4/19/2020 **
4/20/2020 0.00
4/21/2020
4/22/2020 0.02
4/23/2020 0.89
4/24/2020 0.00
4/25/2020 **
4/26/2020 0.09
4/27/2020 0.16
4/28/2020
4/29/2020 0.05
4/30/2020 **
5/1/2020 **
5/2/2020 0.03 0.33
5/3/2020 **
5/4/2020 0.60
5/5/2020 **
5/6/2020 0.64
5/7/2020
5/8/2020
5/9/2020
5/10/2020
5/11/2020 **
5/12/2020 0.22
5/13/2020 0.03
5/14/2020 **
5/15/2020 **
5/16/2020 **
5/17/2020 **
5/18/2020 0.31
5/19/2020 **
5/20/2020 **
5/21/2020 **
5/22/2020 **
5/23/2020 **
5/24/2020 **
5/25/2020 **
5/26/2020 0.65
5/27/2020
5/28/2020
5/29/2020
5/30/2020
5/31/2020 **
6/1/2020 1.21
6/2/2020 0.01
6/3/2020 0.13
6/4/2020
6/5/2020
6/6/2020 0.11
6/7/2020 0.32
6/8/2020 0.02
6/9/2020 0.22
6/10/2020 0.17
6/11/2020 0.00
6/12/2020 0.20
6/13/2020 0.85
6/14/2020 0.07
6/15/2020
6/16/2020 0.23
6/17/2020 **
6/18/2020 **
6/19/2020 0.00
6/20/2020 0.04
6/21/2020 0.82
6/22/2020 0.00
6/23/2020 0.00
6/24/2020 0.17
6/25/2020
6/26/2020
6/27/2020 0.04
6/28/2020
6/29/2020
6/30/2020 0.10
Day of YearDaily PrcpMultiday Prcp
7/1/2020 0.17
7/2/2020 0.47
7/3/2020 0.04
7/4/2020 0.12
7/5/2020 **
7/6/2020 **
7/7/2020 0.00
7/8/2020 **
7/9/2020 **
7/10/2020 0.23
7/11/2020 0.00
7/12/2020 0.04
7/13/2020
7/14/2020 0.00
7/15/2020 **
7/16/2020 **
7/17/2020 **
7/18/2020 **
7/19/2020 **
7/20/2020 **
7/21/2020 **
7/22/2020 **
7/23/2020 **
7/24/2020 **
7/25/2020 **
7/26/2020 **
7/27/2020 **
7/28/2020 **
7/29/2020 **
7/30/2020 **
7/31/2020 0.00
8/1/2020 **
8/2/2020 **
8/3/2020 **
8/4/2020 **
8/5/2020 **
8/6/2020 **
8/7/2020 0.27
8/8/2020 0.22
8/9/2020 **
8/10/2020 **
8/11/2020 **
8/12/2020 **
8/13/2020 **
8/14/2020 **
8/15/2020 **
8/16/2020 **
8/17/2020 **
8/18/2020 **
8/19/2020 0.00
8/20/2020 0.04
8/21/2020 0.03
8/22/2020 0.25
8/23/2020 **
8/24/2020 0.02
8/25/2020 0.02
8/26/2020 **
8/27/2020 0.00
8/28/2020 **
8/29/2020 **
8/30/2020 0.00
8/31/2020 0.17
9/1/2020 **
9/2/2020 **
9/3/2020 **
9/4/2020 **
9/5/2020 **
9/6/2020 **
9/7/2020 **
9/8/2020 **
9/9/2020 **
9/10/2020 **
9/11/2020 **
9/12/2020 **
9/13/2020 **
9/14/2020 0.00
9/15/2020 0.05
9/16/2020 0.05
9/17/2020 0.01
9/18/2020 **
9/19/2020 **
9/20/2020 0.10
9/21/2020
9/22/2020 0.00
9/23/2020 0.08
9/24/2020 0.70
9/25/2020
9/26/2020 0.32
9/27/2020 **
9/28/2020 **
9/29/2020 **
9/30/2020 **



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2019 7:00 AM 0.00 0.0 M M M
10/2/2019 7:00 AM 0.00 0.0 M M M
10/3/2019 7:00 AM 0.00 0.0 M M M
10/4/2019 7:00 AM 0.11 M M M M
10/5/2019 7:00 AM 0.12 M M M M
10/6/2019 7:00 AM 0.05 M M M M
10/7/2019 7:00 AM 0.13 M M M M
10/8/2019 7:00 AM 0.51 M M M M
10/9/2019 7:00 AM 0.11 M M M M First frost on outside of gauge. Snow on nearby Cultus Mtn at ~3000 ft level.
10/10/2019 7:00 AM 0.03 M M M M
10/14/2019 7:00 AM 0.00 0.0 M M M
10/15/2019 7:00 AM 0.00 0.0 M M M
10/16/2019 7:00 AM 0.11 M M M M
10/17/2019 7:00 AM 0.51 M M M M
10/18/2019 7:00 AM 0.56 M M M M
10/19/2019 7:00 AM 0.09 M M M M
10/20/2019 7:00 AM 0.33 M M M M
10/21/2019 7:00 AM 0.23 M M M M
10/22/2019 7:00 AM 2.17 M M M M
10/23/2019 7:00 AM 0.03 M M M M
10/25/2019 7:00 AM 0.01 M M M M
10/26/2019 7:00 AM 0.16 M M M M
10/27/2019 7:00 AM 0.00 0.0 M M M
10/29/2019 7:00 AM 0.00 0.0 M M M
10/30/2019 7:00 AM 0.00 0.0 M M M
10/31/2019 7:00 AM 0.00 0.0 M M M
11/1/2019 7:00 AM 0.00 0.0 M M M
11/2/2019 7:00 AM 0.00 0.0 M M M
11/3/2019 7:00 AM 0.00 0.0 M M M
11/4/2019 7:00 AM 0.00 0.0 M M M
11/5/2019 7:00 AM 0.00 0.0 M M M
11/6/2019 7:00 AM 0.00 0.0 M M M
11/7/2019 7:00 AM 0.00 0.0 M M M
11/8/2019 7:00 AM 0.00 0.0 M M M
11/9/2019 7:00 AM 0.05 M M M M
11/10/2019 7:00 AM 0.14 M M M M
11/11/2019 7:00 AM 0.01 M M M M
11/12/2019 7:00 AM 0.17 M M M M
11/13/2019 7:00 AM 0.08 M M M M
11/14/2019 7:00 AM 0.00 0.0 M M M
11/15/2019 7:00 AM 0.24 M M M M
11/16/2019 7:00 AM 0.00 0.0 M M M
11/17/2019 8:00 AM 0.91 M M M M
11/18/2019 7:00 AM 0.19 M M M M
11/19/2019 7:00 AM 0.89 M M M M
11/23/2019 7:00 AM 0.00 0.0 M M M
12/3/2019 7:00 AM 0.02 M M M M
12/4/2019 7:00 AM 0.07 M M M M
12/5/2019 7:00 AM 0.07 M M M M
12/6/2019 7:00 AM 0.02 M M M M
12/13/2019 7:00 AM 0.40 M M M M
12/14/2019 7:00 AM 0.04 M M M M
12/15/2019 7:00 AM 0.06 M M M M
12/16/2019 7:00 AM 0.03 M M M M
12/17/2019 7:00 AM 0.02 M M M M
12/18/2019 7:00 AM 0.02 M M M M
12/19/2019 7:00 AM 0.05 M M M M
12/20/2019 7:00 AM 0.31 M M M M
12/31/2019 7:00 AM 0.18 M M M M
1/3/2020 7:00 AM 0.32 M M M M
1/4/2020 9:00 AM 0.45 M M M M
1/5/2020 8:00 AM 0.05 M M M M
1/6/2020 7:00 AM 0.25 M M M M
1/7/2020 7:00 AM 1.21 M M M M
1/8/2020 7:00 AM 0.23 M M M M
1/9/2020 7:00 AM 0.02 M M M M
1/10/2020 7:00 AM 0.24 0.4 M M M
1/14/2020 7:00 AM 0.03 1.0 M M M
1/15/2020 7:00 AM 0.61 6.0 M M M
1/16/2020 7:00 AM 0.04 M M M M
1/17/2020 7:00 AM 0.05 M M M M
1/22/2020 8:30 AM 0.10 M M M M
1/23/2020 7:00 AM 0.63 M M M M
1/24/2020 7:00 AM 0.16 M M M M
1/25/2020 7:45 AM 0.29 M M M M
1/26/2020 7:00 AM 0.08 M M M M
1/27/2020 7:24 AM 0.04 M M M M
1/28/2020 7:00 AM 0.48 M M M M
1/29/2020 7:50 AM 0.45 M M M M
1/30/2020 7:00 AM 0.09 M M M M
1/31/2020 7:00 AM 0.44 M M M M
2/1/2020 7:00 AM 0.44 M M M M
2/2/2020 7:00 AM 0.16 M M M M
2/3/2020 7:00 AM 0.08 M M M M
2/4/2020 7:30 AM 0.03 M M M M
2/5/2020 7:00 AM 1.00 M M M M
2/6/2020 7:10 AM 1.45 M M M M
2/7/2020 7:00 AM 0.59 M M M M
2/8/2020 7:00 AM 0.64 M M M M
2/11/2020 7:15 AM 0.02 M M M M
2/12/2020 7:10 AM 0.17 M M M M
2/22/2020 7:00 AM 0.03 M M M M
2/23/2020 7:08 AM 0.41 M M M M
2/24/2020 7:00 AM 0.21 M M M M
2/25/2020 7:00 AM 0.02 M M M M
3/4/2020 8:20 AM 0.22 M M M M
3/5/2020 7:10 AM 0.02 M M M M
3/6/2020 7:10 AM 0.51 M M M M
3/24/2020 7:09 AM 0.31 M M M M
3/25/2020 7:00 AM 0.14 M M M M
3/26/2020 8:00 AM 0.03 M M M M
3/27/2020 7:00 AM 0.03 M M M M
3/28/2020 7:00 AM 0.04 M M M M
3/29/2020 7:50 AM 0.02 M M M M
3/30/2020 7:00 AM 0.91 M M M M
3/31/2020 7:00 AM 0.41 M M M M
4/1/2020 7:00 AM 0.14 M M M M
4/2/2020 7:25 AM 0.02 M M M M
4/3/2020 7:35 AM 0.04 M M M M
4/4/2020 7:00 AM 0.14 M M M M
4/12/2020 7:00 AM 0.02 M M M M
4/22/2020 7:00 AM 0.02 M M M M
4/23/2020 7:00 AM 0.89 M M M M
4/24/2020 7:00 AM 0.00 0.0 M M M
4/27/2020 7:00 AM 0.16 M M M M
4/29/2020 7:15 AM 0.05 M M M M
5/2/2020 6:45 AM 0.03 M M M M
5/13/2020 7:20 AM 0.03 M M M M
6/2/2020 7:35 AM 0.01 M M M M
6/3/2020 7:00 AM 0.13 M M M M
6/6/2020 7:05 AM 0.11 M M M M
6/7/2020 8:30 AM 0.32 M M M M
6/8/2020 7:00 AM 0.02 M M M M
6/9/2020 7:20 AM 0.22 M M M M
6/10/2020 7:45 AM 0.17 M M M M
6/11/2020 7:00 AM 0.00 0.0 M M M
6/12/2020 7:00 AM 0.20 M M M M
6/13/2020 7:00 AM 0.85 M M M M
6/14/2020 7:00 AM 0.07 M M M M
6/16/2020 8:30 AM 0.23 M M M M
6/20/2020 7:00 AM 0.04 M M M M
6/21/2020 8:45 AM 0.82 M M M M
6/22/2020 9:00 AM 0.00 0.0 M M M
6/23/2020 7:15 AM 0.00 0.0 M M M
6/24/2020 7:25 AM 0.17 M M M M
6/27/2020 7:00 AM 0.04 M M M M
6/30/2020 7:00 AM 0.10 M M M M
7/1/2020 7:00 AM 0.17 M M M M
7/2/2020 7:07 AM 0.47 M M M M
7/3/2020 6:56 AM 0.04 M M M M
7/4/2020 8:10 AM 0.12 M M M M
7/11/2020 8:00 AM 0.00 0.0 M M M
7/12/2020 7:00 AM 0.04 M M M M
7/14/2020 7:45 AM 0.00 0.0 M M M
8/8/2020 7:00 AM 0.22 M M M M
8/20/2020 7:00 AM 0.04 M M M M
8/21/2020 7:00 AM 0.03 M M M M
8/22/2020 7:05 AM 0.25 M M M M
8/25/2020 7:00 AM 0.02 M M M M
8/31/2020 7:00 AM 0.17 M M M M
9/15/2020 7:00 AM 0.05 M M M M
9/16/2020 6:50 AM 0.05 M M M M
9/17/2020 7:00 AM 0.01 M M M M
9/22/2020 7:00 AM 0.00 0.0 M M M
9/23/2020 7:00 AM 0.08 M M M M
9/24/2020 7:00 AM 0.70 M M M M
9/26/2020 7:00 AM 0.32 M M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
10/11/2019 10/13/2019 7:00 AM 3 0.00 M M
11/20/2019 11/22/2019 7:00 AM 3 0.00 M M
11/24/2019 11/25/2019 7:00 AM 2 0.19 M M
11/26/2019 12/02/2019 7:00 AM 7 0.02 M M
12/7/2019 12/08/2019 7:00 AM 2 0.46 M M
12/9/2019 12/12/2019 7:00 AM 4 0.04 M M
12/29/2019 12/30/2019 7:00 AM 2 1.52 M M
1/1/2020 1/02/2020 8:10 AM 2 0.82 M M
1/11/2020 1/13/2020 8:00 AM 3 1.25 0.5 M
1/18/2020 1/19/2020 7:00 AM 2 0.05 M M
1/20/2020 1/21/2020 7:00 AM 2 0.19 M M
2/9/2020 2/10/2020 7:00 AM 2 0.04 M M
2/13/2020 2/21/2020 7:00 AM 9 0.93 M M
2/26/2020 3/03/2020 7:00 AM 7 1.26 M M
3/7/2020 3/08/2020 7:00 AM 2 0.33 M M
3/9/2020 3/16/2020 7:00 AM 8 0.07 M M
3/17/2020 3/23/2020 7:00 AM 7 0.00 M M
4/5/2020 4/11/2020 7:00 AM 7 0.00 M M
4/13/2020 4/20/2020 7:00 AM 8 0.00 M M
4/25/2020 4/26/2020 7:00 AM 2 0.09 M M
4/30/2020 5/02/2020 7:00 AM 3 0.33 M M
5/3/2020 5/04/2020 7:00 AM 2 0.60 M M
5/5/2020 5/06/2020 7:00 AM 2 0.64 M M
5/11/2020 5/12/2020 8:08 AM 2 0.22 M M
5/14/2020 5/18/2020 7:00 AM 5 0.31 M M
5/19/2020 5/26/2020 7:00 AM 8 0.65 M M
5/31/2020 6/01/2020 7:40 AM 2 1.21 M M
6/17/2020 6/19/2020 7:00 AM 3 0.00 M M
7/5/2020 7/07/2020 7:00 AM 3 0.00 M M
7/8/2020 7/10/2020 7:00 AM 3 0.23 M M
7/15/2020 7/31/2020 7:00 AM 17 0.00 M M
8/1/2020 8/07/2020 7:21 AM 7 0.27 M M
8/9/2020 8/19/2020 7:00 AM 11 0.00 M M
8/23/2020 8/24/2020 7:00 AM 2 0.02 M M
8/26/2020 8/27/2020 7:00 AM 2 0.00 M M
8/28/2020 8/30/2020 7:00 AM 3 0.00 M M
9/1/2020 9/14/2020 7:00 AM 14 0.00 M M
9/18/2020 9/20/2020 7:00 AM 3 0.10 M M
9/27/2020 10/05/2020 7:00 AM 9 0.18 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