Viewing Station: CA-SN-121 : Santa Rosa 2.1 NNE
Nov 3, 2015 - Oct 18, 20253,527 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.91"
October 1-19, 2025(18 of 19 days covered by obs)
NOAA Normal
1.04"
Departure from Normal
0.87" : 184% of Normal
Year-To-Date: 20.21"
Jan 1 to Oct 19, 2025(291 of 292 days covered by obs)
NOAA Normal
23.12"
Departure from Normal
-2.91" : 87% of Normal
Water Year-To-Date: 1.91"
Oct 1, 2025 to Oct 19, 2025(18 of 19 days covered by obs)
NOAA Normal
1.04"
Departure from Normal
0.87" : 184% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
6.71
5.77
0.94
Feb
6.58
5.98
0.60
Mar
4.83
4.41
0.42
Apr
2.24
2.18
0.06
May
1.29
1.24
0.05
Jun
0.26
0.30
-0.04
Jul
0.01
0.03
-0.02
Aug
0.03
0.05
-0.02
Sep
0.13
0.15
-0.02
Oct
1.69
1.58
0.11
Nov
3.56
3.25
0.31
Dec
7.26
6.34
0.92
34.59
31.28
3.31