Viewing Station: CA-SN-13 : Santa Rosa 2.7 WSW
Feb 4, 2009 - Dec 19, 20253,607 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.21"
December 1-20, 2025(19 of 20 days covered by obs)
NOAA Normal
4.16"
Departure from Normal
-3.95" : 5% of Normal
Year-To-Date: 21.72"
Jan 1 to Dec 20, 2025(348 of 354 days covered by obs)
NOAA Normal
28.91"
Departure from Normal
-7.19" : 75% of Normal
Water Year-To-Date: 6.80"
Oct 1, 2025 to Dec 20, 2025(80 of 81 days covered by obs)
NOAA Normal
9.00"
Departure from Normal
-2.20" : 76% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
5.99
5.97
0.02
Feb
6.03
6.01
0.02
Mar
4.31
4.31
0.00
Apr
2.00
2.10
-0.10
May
1.15
1.23
-0.08
Jun
0.26
0.32
-0.06
Jul
0.01
0.02
-0.01
Aug
0.03
0.05
-0.02
Sep
0.13
0.12
0.01
Oct
1.53
1.59
-0.06
Nov
3.31
3.18
0.13
Dec
6.45
6.12
0.33
31.20
31.02
0.18