Station Overview Station Location
Station Number WA-PR-6 Latitude 47.165323
Station Name Summit 1.1 WSW Longitude -122.378317
County Pierce Elevation (ft) 467



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 16 3.66 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Nov 16 6.99 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Dec 16 5.94 3.38 31 3.38 31 0.00 0 0 20 1 1.5 1 1
Jan 17 5.91 3.00 31 3.00 31 0.00 0 0 13 1 0.4 1 1
Feb 17 4.13 8.46 28 8.46 28 0.00 0 0 20 1 9.2 3 4
March 17 4.27 8.78 31 8.78 31 0.00 0 0 27 0 0.8 1 0
April 17 3.41 4.62 27 4.62 27 0.00 0 0 22 2 0.0 0 0
May 17 2.53 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
June 17 2.09 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
July 17 0.95 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Aug 17 0.93 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Sept 17 1.56 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Water Year Totals: 42.37" 28.24" 148 days 28.24" 148 0.00" 0 days 0 102 days 5 days 11.9" 6 days 6 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
10/1/2016
10/2/2016
10/3/2016
10/4/2016
10/5/2016
10/6/2016
10/7/2016
10/8/2016
10/9/2016
10/10/2016
10/11/2016
10/12/2016
10/13/2016
10/14/2016
10/15/2016
10/16/2016
10/17/2016
10/18/2016
10/19/2016
10/20/2016
10/21/2016
10/22/2016
10/23/2016
10/24/2016
10/25/2016
10/26/2016
10/27/2016
10/28/2016
10/29/2016
10/30/2016
10/31/2016
11/1/2016
11/2/2016
11/3/2016
11/4/2016
11/5/2016
11/6/2016
11/7/2016
11/8/2016
11/9/2016
11/10/2016
11/11/2016
11/12/2016
11/13/2016
11/14/2016
11/15/2016
11/16/2016
11/17/2016
11/18/2016
11/19/2016
11/20/2016
11/21/2016
11/22/2016
11/23/2016
11/24/2016
11/25/2016
11/26/2016
11/27/2016
11/28/2016
11/29/2016
11/30/2016
12/1/2016 0.03
12/2/2016 0.08
12/3/2016 0.29
12/4/2016 0.12
12/5/2016 0.10
12/6/2016 0.02
12/7/2016 0.00
12/8/2016 0.10
12/9/2016 0.46
12/10/2016 0.23
12/11/2016 0.13
12/12/2016 0.15
12/13/2016 0.02
12/14/2016 0.00
12/15/2016 T
12/16/2016 0.00
12/17/2016 0.00
12/18/2016 0.00
12/19/2016 0.55
12/20/2016 0.03
12/21/2016 0.00
12/22/2016 0.19
12/23/2016 0.48
12/24/2016 0.00
12/25/2016 0.00
12/26/2016 0.15
12/27/2016 0.13
12/28/2016 0.00
12/29/2016 0.03
12/30/2016 0.00
12/31/2016 0.09
Day of YearDaily PrcpMultiday Prcp
1/1/2017 0.08
1/2/2017 0.00
1/3/2017 0.00
1/4/2017 0.00
1/5/2017 0.00
1/6/2017 0.00
1/7/2017 0.00
1/8/2017 0.45
1/9/2017 0.01
1/10/2017 0.18
1/11/2017 T
1/12/2017 0.00
1/13/2017 0.00
1/14/2017 0.00
1/15/2017 0.00
1/16/2017 0.00
1/17/2017 1.37
1/18/2017 0.72
1/19/2017 0.01
1/20/2017 0.00
1/21/2017 0.08
1/22/2017 0.01
1/23/2017 0.00
1/24/2017 0.00
1/25/2017 0.02
1/26/2017 0.02
1/27/2017 0.00
1/28/2017 0.00
1/29/2017 0.02
1/30/2017 0.00
1/31/2017 0.03
2/1/2017 0.00
2/2/2017 0.00
2/3/2017 0.61
2/4/2017 0.67
2/5/2017 1.21
2/6/2017 0.23
2/7/2017 0.00
2/8/2017 0.73
2/9/2017 0.87
2/10/2017 0.12
2/11/2017 0.00
2/12/2017 0.00
2/13/2017 0.01
2/14/2017 0.22
2/15/2017 1.23
2/16/2017 0.61
2/17/2017 0.00
2/18/2017 0.38
2/19/2017 0.13
2/20/2017 0.36
2/21/2017 0.38
2/22/2017 0.01
2/23/2017 0.13
2/24/2017 T
2/25/2017 0.01
2/26/2017 0.37
2/27/2017 0.18
2/28/2017 0.00
3/1/2017 0.13
3/2/2017 0.12
3/3/2017 0.38
3/4/2017 0.08
3/5/2017 0.05
3/6/2017 0.25
3/7/2017 0.74
3/8/2017 0.18
3/9/2017 0.93
3/10/2017 0.06
3/11/2017 0.38
3/12/2017 0.01
3/13/2017 0.72
3/14/2017 0.45
3/15/2017 0.93
3/16/2017 0.00
3/17/2017 0.59
3/18/2017 0.48
3/19/2017 0.00
3/20/2017 0.07
3/21/2017 0.21
3/22/2017 0.07
3/23/2017 0.26
3/24/2017 0.23
3/25/2017 0.09
3/26/2017 0.54
3/27/2017 0.07
3/28/2017 0.28
3/29/2017 0.48
3/30/2017 0.00
3/31/2017 0.00
Day of YearDaily PrcpMultiday Prcp
4/1/2017 0.14
4/2/2017 0.01
4/3/2017 0.00
4/4/2017 0.15
4/5/2017 0.48
4/6/2017 0.14
4/7/2017 0.04
4/8/2017 0.13
4/9/2017 T
4/10/2017 0.08
4/11/2017 T
4/12/2017 0.99
4/13/2017 0.20
4/14/2017 0.25
4/15/2017 0.00
4/16/2017 0.00
4/17/2017 0.12
4/18/2017 0.23
4/19/2017 0.43
4/20/2017 0.07
4/21/2017 0.01
4/22/2017 0.10
4/23/2017 0.49
4/24/2017 0.18
4/25/2017 0.08
4/26/2017 0.09
4/27/2017 0.21
4/28/2017
4/29/2017
4/30/2017
5/1/2017
5/2/2017
5/3/2017
5/4/2017
5/5/2017
5/6/2017
5/7/2017
5/8/2017
5/9/2017
5/10/2017
5/11/2017
5/12/2017
5/13/2017
5/14/2017
5/15/2017
5/16/2017
5/17/2017
5/18/2017
5/19/2017
5/20/2017
5/21/2017
5/22/2017
5/23/2017
5/24/2017
5/25/2017
5/26/2017
5/27/2017
5/28/2017
5/29/2017
5/30/2017
5/31/2017
6/1/2017
6/2/2017
6/3/2017
6/4/2017
6/5/2017
6/6/2017
6/7/2017
6/8/2017
6/9/2017
6/10/2017
6/11/2017
6/12/2017
6/13/2017
6/14/2017
6/15/2017
6/16/2017
6/17/2017
6/18/2017
6/19/2017
6/20/2017
6/21/2017
6/22/2017
6/23/2017
6/24/2017
6/25/2017
6/26/2017
6/27/2017
6/28/2017
6/29/2017
6/30/2017
Day of YearDaily PrcpMultiday Prcp
7/1/2017
7/2/2017
7/3/2017
7/4/2017
7/5/2017
7/6/2017
7/7/2017
7/8/2017
7/9/2017
7/10/2017
7/11/2017
7/12/2017
7/13/2017
7/14/2017
7/15/2017
7/16/2017
7/17/2017
7/18/2017
7/19/2017
7/20/2017
7/21/2017
7/22/2017
7/23/2017
7/24/2017
7/25/2017
7/26/2017
7/27/2017
7/28/2017
7/29/2017
7/30/2017
7/31/2017
8/1/2017
8/2/2017
8/3/2017
8/4/2017
8/5/2017
8/6/2017
8/7/2017
8/8/2017
8/9/2017
8/10/2017
8/11/2017
8/12/2017
8/13/2017
8/14/2017
8/15/2017
8/16/2017
8/17/2017
8/18/2017
8/19/2017
8/20/2017
8/21/2017
8/22/2017
8/23/2017
8/24/2017
8/25/2017
8/26/2017
8/27/2017
8/28/2017
8/29/2017
8/30/2017
8/31/2017
9/1/2017
9/2/2017
9/3/2017
9/4/2017
9/5/2017
9/6/2017
9/7/2017
9/8/2017
9/9/2017
9/10/2017
9/11/2017
9/12/2017
9/13/2017
9/14/2017
9/15/2017
9/16/2017
9/17/2017
9/18/2017
9/19/2017
9/20/2017
9/21/2017
9/22/2017
9/23/2017
9/24/2017
9/25/2017
9/26/2017
9/27/2017
9/28/2017
9/29/2017
9/30/2017



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
12/1/2016 11:55 PM 0.03 0.0 M 0.0 M
12/2/2016 11:55 PM 0.08 0.0 M 0.0 M
12/3/2016 11:55 PM 0.29 0.0 M 0.0 M
12/4/2016 11:55 PM 0.12 0.0 M 0.0 M
12/5/2016 11:55 PM 0.10 T M T M
12/6/2016 11:55 PM 0.02 0.0 M 0.0 M
12/7/2016 11:58 PM 0.00 0.0 0.00 0.0 0.00 No snow tonight but this morning was the coldest it has been for this season at 23 degrees. The high only made it to 36. The air mass was quite dry in the afternoon as the dew point only reached 18 degrees. Pressure was the highest I had seen it in a while too at 30.42 inches. Needless really to say there was frost as well this morning.
12/8/2016 11:55 PM 0.10 1.5 M 1.5 M
12/9/2016 11:55 PM 0.46 T M T M
12/10/2016 11:55 PM 0.23 0.0 M 0.0 M
12/11/2016 11:55 PM 0.13 0.0 M 0.0 M
12/12/2016 11:55 PM 0.15 0.0 M 0.0 M
12/13/2016 11:55 PM 0.02 0.0 M 0.0 M
12/14/2016 11:55 PM 0.00 0.0 M 0.0 M
12/15/2016 11:55 PM T T M T M
12/16/2016 11:55 PM 0.00 0.0 M 0.0 M
12/17/2016 11:55 PM 0.00 0.0 M 0.0 M
12/18/2016 11:55 PM 0.00 0.0 M 0.0 M
12/19/2016 11:55 PM 0.55 0.0 M 0.0 M
12/20/2016 11:55 PM 0.03 0.0 M 0.0 M
12/21/2016 11:55 PM 0.00 0.0 M 0.0 M
12/22/2016 11:55 PM 0.19 0.0 M 0.0 M
12/23/2016 11:55 PM 0.48 T M 0.0 M
12/24/2016 11:55 PM 0.00 0.0 M 0.0 M
12/25/2016 11:55 PM 0.00 0.0 M 0.0 M
12/26/2016 11:55 PM 0.15 0.0 M 0.0 M
12/27/2016 11:55 PM 0.13 0.0 M 0.0 M
12/28/2016 11:55 PM 0.00 0.0 M 0.0 M
12/29/2016 11:55 PM 0.03 0.0 M 0.0 M
12/30/2016 11:55 PM 0.00 0.0 M 0.0 M
12/31/2016 11:55 PM 0.09 T M 0.0 M
1/1/2017 11:55 PM 0.08 0.4 M 0.5 M Light snow fell after midnight and was moderate for a short time. All the snow had ended by about 2 AM on 1-1-1-17. High 35 Low 30.
1/2/2017 11:55 PM 0.00 0.0 M T M High 36 Low 23
1/3/2017 11:55 PM 0.00 0.0 M T M High 34 Low 21
1/4/2017 11:55 PM 0.00 0.0 M T M High 39 Low 23
1/5/2017 11:55 PM 0.00 0.0 M T M High 38 Low 15
1/6/2017 11:55 PM 0.00 0.0 M T M High 43 Low 17
1/7/2017 11:55 PM 0.00 0.0 M T M High 37 Low 25
1/8/2017 11:55 PM 0.45 0.0 M 0.0 M High 40 Low 32
1/9/2017 11:55 PM 0.01 0.0 M 0.0 M High 41 Low 33
1/10/2017 11:55 PM 0.18 T M 0.0 M High 37 Low 31. Maximum wind gust to 23 mph from the NE at 7:04 PM as cold air started to pour in down through Puget Sound from the Fraser River Canyon in Canada due to a -16 millibar pressure gradient. A trace of snow fell in the morning as brief snow shower here in the area.
1/11/2017 11:55 PM T T M 0.0 M High 34 Low 24. A trace of snow fell in flurries in the morning and afternoon.
1/12/2017 11:55 PM 0.00 0.0 M 0.0 M High 39 Low 20
1/13/2017 11:55 PM 0.00 0.0 M 0.0 M High 36 Low 20
1/14/2017 11:55 PM 0.00 0.0 M 0.0 M High 42 Low 21
1/15/2017 11:55 PM 0.00 0.0 M 0.0 M High 42 Low 24
1/16/2017 11:55 PM 0.00 0.0 M 0.0 M High 44 Low 26
1/17/2017 11:55 PM 1.37 0.0 M 0.0 M High 49 Low 36
1/18/2017 11:55 PM 0.72 0.0 M 0.0 M High 55 Low 43
1/19/2017 11:55 PM 0.01 0.0 M 0.0 M High 49 Low 39
1/20/2017 11:55 PM 0.00 0.0 M 0.0 M High 48 Low 33
1/21/2017 11:55 PM 0.08 0.0 M 0.0 M High 51 Low 35
1/22/2017 11:55 PM 0.01 0.0 M 0.0 M High 48 Low 35. Partly cloudy at observation time and 36 degrees. Wind calm. Humidity 89% DP 33 and pressure steady at 29.85 inches.
1/23/2017 11:55 PM 0.00 0.0 M 0.0 M High 46 Low 30
1/24/2017 11:55 PM 0.00 0.0 M 0.0 M High 41 Low 26
1/25/2017 11:55 PM 0.02 0.0 M 0.0 M High 43 Low 35
1/26/2017 11:55 PM 0.02 0.0 M 0.0 M High 48 Low 38
1/27/2017 11:55 PM 0.00 0.0 M 0.0 M High 53 Low 31. Today had a very high pressure reading of 30.67 inches. The Seattle-Tacoma Airport was the highest reading in two years according to NWS Seattle.
1/28/2017 11:55 PM 0.00 0.0 M 0.0 M High 49 Low 35
1/29/2017 11:55 PM 0.02 0.0 M 0.0 M High 49 Low 34
1/30/2017 11:55 PM 0.00 0.0 M 0.0 M High 44 Low 39
1/31/2017 11:55 PM 0.03 0.0 M 0.0 M High 43 Low 32
2/1/2017 11:55 PM 0.00 0.0 M 0.0 M High 42 Low 30
2/2/2017 11:55 PM 0.00 0.0 M 0.0 M High 45 Low 28
2/3/2017 11:55 PM 0.61 0.0 M 0.0 M High 37 Low 32
2/4/2017 11:55 PM 0.67 0.0 M 0.0 M High 48 Low 37
2/5/2017 11:55 PM 1.21 7.2 M 7.0 M Snow started to stick at 2 PM and was still piling up at almost midnight. It had not stopped snowing all during that time either. High 40 (12 AM) Low 32. The 32 degree reading for air temp basically started at 2 PM as well. Snow was a bit heavier as well after dark.
2/6/2017 11:55 PM 0.23 1.8 M 5.0 M High 38 Low 32. Today's snow fell early in the morning. The maximum settled snow depth was 8.5 inches so basically 3.5 inches either compressed or melted under it's own weight because the snowfall from the two day time span was quite wet. In 48 hours I measured out 1.44 inches of water which is impressive to say the least. Total snowfall for the 2016-17 season is now 10.9 inches.
2/7/2017 11:55 PM 0.00 0.0 M 4.0 M High 39 Low 27
2/8/2017 11:55 PM 0.73 0.0 M 3.0 M High 36 Low 32
2/9/2017 11:55 PM 0.87 0.0 M 0.0 M High 57 Low 35
2/10/2017 11:55 PM 0.12 0.0 M 0.0 M High 47 Low 36
2/11/2017 11:55 PM 0.00 0.0 M 0.0 M High 49 Low 33
2/12/2017 11:55 PM 0.00 0.0 M 0.0 M High 50 Low 29
2/13/2017 11:55 PM 0.01 0.0 M 0.0 M High 55 Low 30
2/14/2017 11:55 PM 0.22 0.0 M 0.0 M High 56 Low 31
2/15/2017 11:55 PM 1.23 0.0 M 0.0 M High 57 Low 43
2/16/2017 11:55 PM 0.61 0.0 M 0.0 M High 54 Low 44
2/17/2017 11:55 PM 0.00 0.0 M 0.0 M High 54 Low 37
2/18/2017 11:55 PM 0.38 0.0 M 0.0 M High 45 Low 40
2/19/2017 11:55 PM 0.13 0.0 M 0.0 M High 46 Low 37
2/20/2017 11:55 PM 0.36 0.0 M 0.0 M High 44 Low 39
2/21/2017 11:55 PM 0.38 0.0 M 0.0 M High 44 Low 36
2/22/2017 11:55 PM 0.01 0.0 M 0.0 M
2/23/2017 11:55 PM 0.13 0.2 M 0.0 M
2/24/2017 11:55 PM T T M 0.0 M Ice pellets-graupel fell today.
2/25/2017 11:55 PM 0.01 0.0 M 0.0 M
2/26/2017 11:55 PM 0.37 0.0 M 0.0 M
2/27/2017 11:55 PM 0.18 T M 0.0 M Wet snow fell during after the noon hour but it did not accumulate nearly at all. Not enough to even measure. Areas north of me reported snow though.
2/28/2017 11:55 PM 0.00 0.0 M 0.0 M
3/1/2017 11:55 PM 0.13 0.0 M 0.0 M
3/2/2017 11:55 PM 0.12 0.0 M 0.0 M
3/3/2017 11:55 PM 0.38 0.0 M 0.0 M
3/4/2017 11:55 PM 0.08 0.0 M 0.0 M
3/5/2017 11:55 PM 0.05 0.0 M 0.0 M
3/6/2017 11:55 PM 0.25 0.8 M T M Snow fell very early in the morning from about 5 AM until 6 PM. Then again for a brief time after dark. The morning snow measured 0.6 inches and the after dark was 0.2 inches. There was a trace of snow on the ground at observation time still. I also had some hail that accumulated on the ground in the afternoon but that is within the precipitation total.
3/7/2017 11:55 PM 0.74 0.0 M 0.0 M
3/8/2017 11:55 PM 0.18 0.0 M 0.0 M
3/9/2017 11:55 PM 0.93 0.0 M 0.0 M
3/10/2017 11:55 PM 0.06 0.0 M 0.0 M
3/11/2017 11:55 PM 0.38 0.0 M 0.0 M
3/12/2017 11:55 PM 0.01 0.0 M 0.0 M
3/13/2017 11:55 PM 0.72 0.0 M 0.0 M
3/14/2017 11:55 PM 0.45 0.0 M 0.0 M
3/15/2017 11:55 PM 0.93 0.0 M 0.0 M
3/16/2017 11:55 PM 0.00 0.0 M 0.0 M
3/17/2017 11:55 PM 0.59 0.0 M 0.0 M High 51 Low 33
3/18/2017 11:55 PM 0.48 0.0 M 0.0 M High 58 Low 34
3/19/2017 11:55 PM 0.00 0.0 M 0.0 M High 50 Low 28
3/20/2017 11:55 PM 0.07 0.0 M 0.0 M High 53 Low 36
3/21/2017 11:55 PM 0.21 0.0 M 0.0 M High 57 Low 43
3/22/2017 11:55 PM 0.07 0.0 M 0.0 M Hi 56 Low 41
3/23/2017 11:55 PM 0.26 0.0 M 0.0 M High 58 Low 38
3/24/2017 11:55 PM 0.23 0.0 M 0.0 M High 53 Low 43
3/25/2017 11:55 PM 0.09 0.0 M 0.0 M High 49 Low 41
3/26/2017 11:55 PM 0.54 0.0 M 0.0 M High 47 Low 40
3/27/2017 11:55 PM 0.07 0.0 M 0.0 M High 52 Low 41
3/28/2017 11:55 PM 0.28 0.0 M 0.0 M Hi 51 Low 43
3/29/2017 11:55 PM 0.48 0.0 M 0.0 M High 58 Low 42
3/30/2017 11:55 PM 0.00 0.0 M 0.0 M High 56 Low 41
3/31/2017 11:55 PM 0.00 0.0 M 0.0 M High 57 Low 37
4/1/2017 11:55 PM 0.14 0.0 M 0.0 M High 54 Low 44
4/2/2017 11:55 PM 0.01 0.0 M 0.0 M High 55 Low 38
4/3/2017 11:55 PM 0.00 0.0 M 0.0 M High 55 Low 33
4/4/2017 11:55 PM 0.15 0.0 M 0.0 M High 61 Low 39
4/5/2017 11:55 PM 0.48 0.0 M 0.0 M High 53 Low 46
4/6/2017 11:55 PM 0.14 0.0 M 0.0 M High 60 Low 45
4/7/2017 11:55 PM 0.04 0.0 M 0.0 M
4/8/2017 11:55 PM 0.13 0.0 M 0.0 M
4/9/2017 11:55 PM T 0.0 M 0.0 M
4/10/2017 11:55 PM 0.08 0.0 M 0.0 M
4/11/2017 11:55 PM T 0.0 M 0.0 M
4/12/2017 11:55 PM 0.99 0.0 M 0.0 M High 59 Low 44
4/13/2017 11:55 PM 0.20 0.0 M 0.0 M
4/14/2017 11:55 PM 0.25 0.0 M 0.0 M
4/15/2017 11:55 PM 0.00 0.0 M 0.0 M
4/16/2017 11:55 PM 0.00 0.0 M 0.0 M
4/17/2017 11:55 PM 0.12 0.0 M 0.0 M
4/18/2017 11:55 PM 0.23 0.0 M 0.0 M
4/19/2017 11:55 PM 0.43 0.0 M 0.0 M
4/20/2017 11:55 PM 0.07 0.0 M 0.0 M
4/21/2017 11:55 PM 0.01 0.0 M 0.0 M
4/22/2017 11:55 PM 0.10 0.0 M 0.0 M
4/23/2017 11:55 PM 0.49 0.0 M 0.0 M
4/24/2017 11:55 PM 0.18 0.0 M 0.0 M
4/25/2017 11:55 PM 0.08 0.0 M 0.0 M
4/26/2017 11:55 PM 0.09 0.0 M 0.0 M
4/27/2017 11:55 PM 0.21 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