Viewing Station: CA-SN-49 : Sebastopol 1.1 SSE
Feb 9, 2009 - Sep 16, 20255,619 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.12"
September 1-17, 2025(16 of 17 days covered by obs)
NOAA Normal
0.08"
Departure from Normal
0.04" : 151% of Normal
Year-To-Date: 16.94"
Jan 1 to Sep 17, 2025(256 of 260 days covered by obs)
NOAA Normal
21.04"
Departure from Normal
-4.10" : 81% of Normal
Water Year-To-Date: 40.92"
Oct 1, 2024 to Sep 17, 2025(346 of 352 days covered by obs)
NOAA Normal
33.15"
Departure from Normal
7.77" : 123% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
6.47
7.31
-0.84
Feb
6.41
7.19
-0.78
Mar
4.46
5.18
-0.72
Apr
2.18
2.42
-0.24
May
1.12
1.39
-0.27
Jun
0.28
0.38
-0.10
Jul
0.01
0.02
-0.01
Aug
0.03
0.07
-0.04
Sep
0.14
0.14
0.00
Oct
1.58
1.88
-0.30
Nov
3.59
3.93
-0.34
Dec
6.94
8.21
-1.27
33.21
38.12
-4.91