Station Overview Station Location
Station Number WA-SG-31 Latitude 48.55384
Station Name Marblemount 2.1 NE Longitude -121.42622
County Skagit Elevation (ft) 351



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 17 8.23 11.34 31 9.94 14 1.40 17 5 13 0 0.0 0 0
Nov 17 13.43 15.06 29 5.66 7 9.40 22 2 7 0 0.0 0 0
Dec 17 9.63 5.42 31 4.89 10 0.53 21 3 7 0 0.0 0 0
Jan 18 12.03 16.52 31 3.14 8 13.38 23 4 7 0 0.0 0 0
Feb 18 6.68 13.36 28 3.35 4 10.01 24 2 2 0 0.0 0 0
March 18 7.07 3.74 30 0.51 5 3.23 25 4 4 0 0.0 0 0
April 18 4.80 9.74 30 7.41 15 2.33 15 4 15 0 0.5 1 1
May 18 3.75 1.95 31 0.88 11 1.07 20 4 2 1 0.0 0 0
June 18 3.09 2.51 30 1.75 10 0.76 20 5 7 0 0.0 0 0
July 18 2.33 1.03 32 0.84 5 0.19 27 3 4 0 0.0 0 0
Aug 18 1.74 0.42 31 0.42 8 0.00 23 3 4 1 0.0 0 0
Sept 18 3.62 2.89 30 2.09 10 0.80 20 3 8 1 0.0 0 0
Water Year Totals: 76.40" 83.98" 364 days 40.88" 107 43.10" 257 days 42 80 days 3 days 0.5" 1 days 1 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
10/1/2017 0.82
10/2/2017 0.05
10/3/2017 **
10/4/2017 **
10/5/2017 **
10/6/2017 T
10/7/2017 0.69
10/8/2017 1.04
10/9/2017 **
10/10/2017 **
10/11/2017 **
10/12/2017 **
10/13/2017 0.58
10/14/2017 0.03
10/15/2017 **
10/16/2017 0.00
10/17/2017 0.58
10/18/2017 0.27
10/19/2017 2.91
10/20/2017 0.88
10/21/2017 0.38
10/22/2017 2.37
10/23/2017 0.54
10/24/2017 0.00
10/25/2017 0.12
10/26/2017 0.08
10/27/2017 **
10/28/2017 **
10/29/2017 **
10/30/2017 **
10/31/2017 0.00
11/1/2017 **
11/2/2017 **
11/3/2017 **
11/4/2017 **
11/5/2017 **
11/6/2017 **
11/7/2017 **
11/8/2017 **
11/9/2017 **
11/10/2017 **
11/11/2017 **
11/12/2017 **
11/13/2017 **
11/14/2017 **
11/15/2017 **
11/16/2017 **
11/17/2017 **
11/18/2017 3.77
11/19/2017 0.01
11/20/2017 1.52
11/21/2017 0.38
11/22/2017 **
11/23/2017 **
11/24/2017 **
11/25/2017 5.63
11/26/2017 1.01
11/27/2017 1.51
11/28/2017 0.25
11/29/2017 0.98
11/30/2017
12/1/2017 0.61
12/2/2017 0.32
12/3/2017 0.28
12/4/2017 0.01
12/5/2017 **
12/6/2017 **
12/7/2017 **
12/8/2017 0.01
12/9/2017 0.00
12/10/2017 0.00
12/11/2017 0.00
12/12/2017 **
12/13/2017 **
12/14/2017 0.00
12/15/2017 0.12
12/16/2017 **
12/17/2017 0.52
12/18/2017 2.74
12/19/2017 0.81
12/20/2017 **
12/21/2017 **
12/22/2017 **
12/23/2017 **
12/24/2017 **
12/25/2017 **
12/26/2017 **
12/27/2017 **
12/28/2017 **
12/29/2017 **
12/30/2017 **
12/31/2017 **
Day of YearDaily PrcpMultiday Prcp
1/1/2018 3.75
1/2/2018 **
1/3/2018 **
1/4/2018 **
1/5/2018 **
1/6/2018 0.81
1/7/2018 0.07
1/8/2018 0.77
1/9/2018 0.63
1/10/2018 **
1/11/2018 **
1/12/2018 **
1/13/2018 3.11
1/14/2018 0.00
1/15/2018 0.01
1/16/2018 **
1/17/2018 **
1/18/2018 **
1/19/2018 **
1/20/2018 **
1/21/2018 **
1/22/2018 **
1/23/2018 **
1/24/2018 **
1/25/2018 **
1/26/2018 5.71
1/27/2018 0.46
1/28/2018 0.57
1/29/2018 0.63
1/30/2018 **
1/31/2018 **
2/1/2018 **
2/2/2018 **
2/3/2018 5.11
2/4/2018 2.14
2/5/2018 1.21
2/6/2018 **
2/7/2018 **
2/8/2018 **
2/9/2018 **
2/10/2018 **
2/11/2018 **
2/12/2018 **
2/13/2018 **
2/14/2018 **
2/15/2018 **
2/16/2018 **
2/17/2018 **
2/18/2018 4.90
2/19/2018 0.00
2/20/2018 0.00
2/21/2018 **
2/22/2018 **
2/23/2018 **
2/24/2018 **
2/25/2018 **
2/26/2018 **
2/27/2018 **
2/28/2018 **
3/1/2018 **
3/2/2018 **
3/3/2018 **
3/4/2018 **
3/5/2018 **
3/6/2018 **
3/7/2018 **
3/8/2018 **
3/9/2018 **
3/10/2018 1.02
3/11/2018 0.00
3/12/2018 **
3/13/2018 **
3/14/2018 **
3/15/2018 **
3/16/2018 0.43
3/17/2018
3/18/2018 0.06
3/19/2018 **
3/20/2018 **
3/21/2018 **
3/22/2018 **
3/23/2018 0.43
3/24/2018 0.13
3/25/2018 0.07
3/26/2018 0.25
3/27/2018 **
3/28/2018 **
3/29/2018 **
3/30/2018 1.35
3/31/2018 **
Day of YearDaily PrcpMultiday Prcp
4/1/2018 0.41
4/2/2018 0.63
4/3/2018 **
4/4/2018 **
4/5/2018 **
4/6/2018 **
4/7/2018 1.77
4/8/2018 0.48
4/9/2018 0.48
4/10/2018 0.20
4/11/2018 0.07
4/12/2018 0.35
4/13/2018 0.24
4/14/2018 1.09
4/15/2018 0.93
4/16/2018 0.82
4/17/2018 1.19
4/18/2018 **
4/19/2018 **
4/20/2018 0.15
4/21/2018 0.43
4/22/2018 **
4/23/2018 **
4/24/2018 **
4/25/2018 **
4/26/2018 **
4/27/2018 0.00
4/28/2018 0.23
4/29/2018 0.09
4/30/2018 0.18
5/1/2018 **
5/2/2018 **
5/3/2018 **
5/4/2018 0.04
5/5/2018 0.00
5/6/2018 0.00
5/7/2018 0.86
5/8/2018 **
5/9/2018 **
5/10/2018 **
5/11/2018 0.98
5/12/2018 0.00
5/13/2018 0.00
5/14/2018 0.00
5/15/2018 **
5/16/2018 **
5/17/2018 **
5/18/2018 **
5/19/2018 0.05
5/20/2018 0.02
5/21/2018 T
5/22/2018 **
5/23/2018 **
5/24/2018 **
5/25/2018 0.00
5/26/2018 0.00
5/27/2018 0.00
5/28/2018 0.00
5/29/2018 **
5/30/2018 **
5/31/2018 **
6/1/2018 **
6/2/2018 0.00
6/3/2018 0.00
6/4/2018 0.17
6/5/2018 **
6/6/2018 **
6/7/2018 **
6/8/2018 0.03
6/9/2018 0.44
6/10/2018 0.10
6/11/2018 0.24
6/12/2018 **
6/13/2018 **
6/14/2018 **
6/15/2018 0.38
6/16/2018 0.00
6/17/2018 0.05
6/18/2018 **
6/19/2018 **
6/20/2018 **
6/21/2018 **
6/22/2018 **
6/23/2018 0.06
6/24/2018 0.00
6/25/2018 0.63
6/26/2018 **
6/27/2018 **
6/28/2018 **
6/29/2018 0.29
6/30/2018 0.12
Day of YearDaily PrcpMultiday Prcp
7/1/2018 0.32
7/2/2018 0.07
7/3/2018 **
7/4/2018 **
7/5/2018 **
7/6/2018 0.12
7/7/2018 0.44
7/8/2018 0.01
7/9/2018 0.00
7/10/2018 **
7/11/2018 **
7/12/2018 **
7/13/2018 0.07
7/14/2018 **
7/15/2018 **
7/16/2018 **
7/17/2018 **
7/18/2018 **
7/19/2018 **
7/20/2018 **
7/21/2018 **
7/22/2018 **
7/23/2018 **
7/24/2018 **
7/25/2018 **
7/26/2018 **
7/27/2018 **
7/28/2018 **
7/29/2018 **
7/30/2018 **
7/31/2018 **
8/1/2018 **
8/2/2018 **
8/3/2018 **
8/4/2018 **
8/5/2018 **
8/6/2018 **
8/7/2018 **
8/8/2018 **
8/9/2018 0.00
8/10/2018 0.00
8/11/2018 0.00
8/12/2018 0.15
8/13/2018 T
8/14/2018 **
8/15/2018 **
8/16/2018 **
8/17/2018 **
8/18/2018 **
8/19/2018 **
8/20/2018 **
8/21/2018 **
8/22/2018 **
8/23/2018 **
8/24/2018 0.00
8/25/2018 0.00
8/26/2018 0.08
8/27/2018 0.16
8/28/2018 **
8/29/2018 **
8/30/2018 0.00
8/31/2018 0.03
9/1/2018 **
9/2/2018 **
9/3/2018 0.00
9/4/2018 **
9/5/2018 **
9/6/2018 **
9/7/2018 0.00
9/8/2018 0.19
9/9/2018 0.04
9/10/2018 0.81
9/11/2018 **
9/12/2018 **
9/13/2018 **
9/14/2018 0.80
9/15/2018 0.08
9/16/2018 0.15
9/17/2018 0.46
9/18/2018 T
9/19/2018 0.00
9/20/2018 0.05
9/21/2018 0.31
9/22/2018 **
9/23/2018 **
9/24/2018 **
9/25/2018 **
9/26/2018 **
9/27/2018 **
9/28/2018 **
9/29/2018 **
9/30/2018 **



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/2/2017 9:00 AM 0.05 M M M M
10/7/2017 10:12 AM 0.69 M M M M
10/8/2017 9:00 AM 1.04 M M M M
10/14/2017 9:00 AM 0.03 M M M M
10/17/2017 10:00 AM 0.58 M M M M
10/18/2017 9:48 AM 0.27 M M M M
10/19/2017 11:13 AM 2.91 M M M M
10/20/2017 9:21 AM 0.88 M M M M
10/21/2017 10:21 AM 0.38 M M M M
10/22/2017 9:57 AM 2.37 M M M M Dropped reservoir and spilled some of the rainwater. Measured 1.95" + whatever spilled. Using Ranger Station's reading... 2.37" is quite plausible.
10/23/2017 9:00 AM 0.54 M M M M
10/24/2017 9:00 AM 0.00 0.0 M M M
10/25/2017 11:12 AM 0.12 M M M M
10/26/2017 9:00 AM 0.08 M M M M
11/19/2017 9:00 AM 0.01 M M M M
11/20/2017 9:25 AM 1.52 M M M M
11/21/2017 8:57 AM 0.38 M M M M
11/26/2017 10:21 AM 1.01 M M M M
11/27/2017 10:32 AM 1.51 M M M M
11/28/2017 10:14 AM 0.25 M M M M
11/29/2017 9:00 AM 0.98 M M M M
12/1/2017 11:57 AM 0.61 M M M M This should have been entered as a multi-day report (to cover period from 11/28 reading to this reading).
12/2/2017 9:00 AM 0.32 M M M M
12/3/2017 9:00 AM 0.28 M M M M
12/4/2017 9:00 AM 0.01 M M M M
12/9/2017 9:00 AM 0.00 0.0 M M M
12/10/2017 9:00 AM 0.00 0.0 M M M
12/11/2017 9:00 AM 0.00 0.0 M M M
12/15/2017 11:46 AM 0.12 M M M M
12/18/2017 10:05 AM 2.74 M M M M
12/19/2017 6:47 AM 0.81 M M M M
1/7/2018 11:21 AM 0.07 M M M M
1/8/2018 9:00 AM 0.77 M M M M
1/9/2018 9:38 AM 0.63 M M M M
1/14/2018 9:00 AM 0.00 0.0 M M M
1/15/2018 9:00 AM 0.01 M M M M
1/27/2018 9:50 AM 0.46 M M M M
1/28/2018 10:26 AM 0.57 M M M M
1/29/2018 10:27 AM 0.63 M M M M
2/4/2018 9:25 AM 2.14 M M M M
2/5/2018 9:30 AM 1.21 M M M M
2/19/2018 9:00 AM 0.00 0.0 M M M
2/20/2018 9:00 AM 0.00 0.0 M M M
3/11/2018 9:00 AM 0.00 0.0 M M M
3/18/2018 9:00 AM 0.06 M M M M
3/24/2018 10:08 AM 0.13 M M M M
3/25/2018 9:00 AM 0.07 M M M M
3/26/2018 9:04 AM 0.25 M M M M
4/2/2018 9:20 AM 0.63 0.5 0.32 0.5 0.32 About a half inch of wet snow overnight. Melting fast.
4/8/2018 12:00 PM 0.48 M M M M
4/9/2018 9:21 AM 0.48 M M M M
4/10/2018 12:07 PM 0.20 M M M M
4/11/2018 9:49 AM 0.07 M M M M
4/12/2018 10:34 AM 0.35 M M M M
4/13/2018 10:00 AM 0.24 M M M M
4/14/2018 1:37 PM 1.09 M M M M
4/15/2018 8:47 AM 0.93 M M M M
4/16/2018 10:10 AM 0.82 M M M M
4/17/2018 6:25 AM 1.19 M M M M
4/21/2018 9:03 AM 0.43 M M M M
4/28/2018 10:15 AM 0.23 M M M M
4/29/2018 10:21 AM 0.09 M M M M
4/30/2018 7:37 AM 0.18 M M M M
5/5/2018 9:00 AM 0.00 0.0 M M M
5/6/2018 9:00 AM 0.00 0.0 M M M
5/7/2018 8:40 AM 0.86 M M M M Thunderstorm last night!
5/12/2018 9:00 AM 0.00 0.0 M M M
5/13/2018 9:00 AM 0.00 0.0 M M M
5/14/2018 9:00 AM 0.00 0.0 M M M
5/20/2018 8:23 AM 0.02 M M M M
5/21/2018 9:00 AM T M M M M
5/26/2018 9:00 AM 0.00 0.0 M M M
5/27/2018 9:00 AM 0.00 0.0 M M M
5/28/2018 9:00 AM 0.00 0.0 M M M
6/3/2018 8:40 AM 0.00 0.0 M M M
6/4/2018 9:00 AM 0.17 M M M M
6/9/2018 9:00 AM 0.44 M M M M
6/10/2018 10:38 AM 0.10 M M M M
6/11/2018 11:58 AM 0.24 M M M M
6/16/2018 8:46 AM 0.00 0.0 M M M
6/17/2018 9:00 AM 0.05 M M M M
6/24/2018 9:00 AM 0.00 0.0 M M M
6/25/2018 9:57 AM 0.63 M M M M Thunderstorm last night.
6/30/2018 11:59 AM 0.12 M M M M
7/1/2018 8:59 AM 0.32 M M M M
7/2/2018 9:07 AM 0.07 M M M M
7/7/2018 8:42 AM 0.44 M M M M
7/8/2018 9:00 AM 0.01 M M M M
7/9/2018 9:00 AM 0.00 0.0 M M M
8/10/2018 9:00 AM 0.00 0.0 M M M
8/11/2018 9:00 AM 0.00 0.0 M M M
8/12/2018 9:01 AM 0.15 M M M M
8/13/2018 9:00 AM T M M M M
8/25/2018 9:00 AM 0.00 0.0 M M M
8/26/2018 9:47 AM 0.08 M M M M
8/27/2018 9:00 AM 0.16 M M M M
8/31/2018 9:00 AM 0.03 M M M M
9/8/2018 9:18 AM 0.19 M M M M
9/9/2018 9:00 AM 0.04 M M M M
9/10/2018 8:57 AM 0.81 M M M M
9/15/2018 9:29 AM 0.08 M M M M
9/16/2018 9:00 AM 0.15 M M M M
9/17/2018 8:38 AM 0.46 M M M M
9/18/2018 9:00 AM T M M M M
9/19/2018 9:00 AM 0.00 0.0 M M M
9/20/2018 9:48 AM 0.05 M M M M
9/21/2018 8:00 AM 0.31 M M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
9/26/2017 10/01/2017 3:32 PM 6 0.82 M M
10/3/2017 10/06/2017 9:00 AM 4 T M M
10/9/2017 10/13/2017 9:00 AM 5 0.58 M M
10/15/2017 10/16/2017 9:00 AM 2 0.00 M M
10/27/2017 10/31/2017 9:00 AM 5 0.00 M M
11/1/2017 11/18/2017 9:00 AM 18 3.77 M M
11/22/2017 11/25/2017 9:00 AM 4 5.63 M M
12/5/2017 12/08/2017 9:00 AM 4 0.01 M M
12/12/2017 12/14/2017 9:00 AM 3 0.00 M M
12/16/2017 12/17/2017 10:31 AM 2 0.52 M M
12/20/2017 1/01/2018 9:00 AM 13 3.75 M M
1/2/2018 1/06/2018 9:00 AM 5 0.81 M M
1/10/2018 1/13/2018 9:00 AM 4 3.11 M M
1/16/2018 1/26/2018 11:26 AM 11 5.71 M M
1/30/2018 2/03/2018 11:30 AM 5 5.11 M M
2/6/2018 2/18/2018 9:00 AM 13 4.90 M 3.40 We've missed a major snowfall event... some while we were gone, and more since we arrived the night of February 15. Part laziness and part arriving in the middle of the event. Actual precipitation number across this timeframe is probably a bit higher due to snow blocking top of rain gauge.
2/21/2018 3/10/2018 9:00 AM 18 1.02 M M May have missed a snow event or two while we were away. But I had the lid off of the gauge, so--discounting evaporation--the total ppt amount should be correct.
3/12/2018 3/16/2018 9:00 AM 5 0.43 M M
3/19/2018 3/23/2018 9:00 AM 5 0.43 M M
3/27/2018 3/30/2018 8:57 AM 4 1.35 M M
3/31/2018 4/01/2018 10:10 AM 2 0.41 M M
4/3/2018 4/07/2018 12:00 PM 5 1.77 M M
4/18/2018 4/20/2018 9:00 AM 3 0.15 M M
4/22/2018 4/27/2018 9:00 AM 6 0.00 M M
5/1/2018 5/04/2018 9:16 AM 4 0.04 M M
5/8/2018 5/11/2018 9:00 AM 4 0.98 M M
5/15/2018 5/19/2018 9:00 AM 5 0.05 M M
5/22/2018 5/25/2018 8:29 AM 4 0.00 M M
5/29/2018 6/02/2018 9:00 AM 5 0.00 M M
6/5/2018 6/08/2018 9:00 AM 4 0.03 M M
6/12/2018 6/15/2018 8:33 AM 4 0.38 M M
6/18/2018 6/23/2018 9:00 AM 6 0.06 M M
6/26/2018 6/29/2018 8:37 AM 4 0.29 M M
7/3/2018 7/06/2018 8:32 AM 4 0.12 M M
7/10/2018 7/13/2018 8:45 AM 4 0.07 M M
7/14/2018 7/17/2018 9:00 AM 4 0.00 M M
7/17/2018 8/09/2018 9:00 AM 24 0.00 M M
8/14/2018 8/24/2018 9:00 AM 11 0.00 M M
8/28/2018 8/30/2018 9:00 AM 3 0.00 M M
9/1/2018 9/03/2018 9:00 AM 3 0.00 M M
9/4/2018 9/07/2018 9:00 AM 4 0.00 M M
9/11/2018 9/14/2018 8:11 AM 4 0.80 M M
9/22/2018 10/20/2018 9:00 AM 29 2.66 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