Viewing Station: CA-SN-143 : Santa Rosa 2.5 SE
Jan 25, 2018 - Dec 22, 2025618 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 4.78"
December 1-22, 2025(6 of 22 days covered by obs)
NOAA Normal
4.67"
Departure from Normal
0.11" : 102% of Normal
Year-To-Date: 28.22"
Jan 1 to Dec 22, 2025(78 of 356 days covered by obs)
NOAA Normal
29.89"
Departure from Normal
-1.67" : 94% of Normal
Water Year-To-Date: 10.46"
Oct 1, 2025 to Dec 22, 2025(25 of 83 days covered by obs)
NOAA Normal
9.61"
Departure from Normal
0.85" : 109% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
6.08
6.25
-0.17
Feb
6.10
6.29
-0.19
Mar
4.42
4.60
-0.18
Apr
2.04
2.24
-0.20
May
1.21
1.27
-0.06
Jun
0.26
0.32
-0.06
Jul
0.01
0.02
-0.01
Aug
0.03
0.05
-0.02
Sep
0.13
0.13
0.00
Oct
1.58
1.66
-0.08
Nov
3.36
3.29
0.07
Dec
6.58
6.43
0.15
31.80
32.55
-0.75