Viewing Station: WA-SG-52 : Mount Vernon 1.5 E
Feb 12, 2017 - Sep 17, 20252,973 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.19"
September 1-17, 2025(16 of 17 days covered by obs)
NOAA Normal
1.43"
Departure from Normal
-1.24" : 13% of Normal
Year-To-Date: 20.61"
Jan 1 to Sep 17, 2025(254 of 260 days covered by obs)
NOAA Normal
28.11"
Departure from Normal
-7.50" : 73% of Normal
Water Year-To-Date: 40.36"
Oct 1, 2024 to Sep 17, 2025(346 of 352 days covered by obs)
NOAA Normal
45.57"
Departure from Normal
-5.21" : 89% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
6.09
4.85
1.24
Feb
4.13
3.59
0.54
Mar
4.59
3.66
0.93
Apr
3.89
3.10
0.79
May
3.11
2.84
0.27
Jun
2.28
2.32
-0.04
Jul
1.21
1.10
0.11
Aug
1.38
1.42
-0.04
Sep
2.53
2.31
0.22
Oct
4.73
4.26
0.47
Nov
6.77
6.18
0.59
Dec
5.96
4.69
1.27
46.67
40.32
6.35