Viewing Station: WA-TH-44 : Olympia 1.0 ENE
Aug 30, 2016 - Sep 17, 20253,142 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.07"
September 1-17, 2025(17 of 17 days covered by obs)
NOAA Normal
1.03"
Departure from Normal
-0.96" : 7% of Normal
Year-To-Date: 21.08"
Jan 1 to Sep 17, 2025(231 of 260 days covered by obs)
NOAA Normal
26.70"
Departure from Normal
-5.62" : 79% of Normal
Water Year-To-Date: 44.25"
Oct 1, 2024 to Sep 17, 2025(322 of 352 days covered by obs)
NOAA Normal
46.20"
Departure from Normal
-1.95" : 96% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
7.17
7.85
-0.68
Feb
4.66
5.26
-0.60
Mar
5.29
5.82
-0.53
Apr
3.53
3.86
-0.33
May
2.13
2.32
-0.19
Jun
1.42
1.62
-0.20
Jul
0.57
0.59
-0.02
Aug
0.90
0.96
-0.06
Sep
1.82
1.98
-0.16
Oct
4.57
5.03
-0.46
Nov
7.54
8.35
-0.81
Dec
7.39
7.98
-0.59
46.99
51.62
-4.63