Viewing Station: CA-SN-61 : Santa Rosa 1.3 NW
Feb 1, 2009 - Sep 30, 20266,275 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.34"
September 1-30, 2026(30 of 30 days covered by obs)
NOAA Normal
0.13"
Departure from Normal
0.21" : 262% of Normal
Year-To-Date: 16.17"
Jan 1 to Sep 30, 2026(273 of 273 days covered by obs)
NOAA Normal
21.06"
Departure from Normal
-4.89" : 77% of Normal
Water Year-To-Date: 30.22"
Oct 1, 2025 to Sep 30, 2026(365 of 365 days covered by obs)
NOAA Normal
32.85"
Departure from Normal
-2.63" : 92% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
6.41
5.69
0.72
Feb
6.23
5.90
0.33
Mar
4.62
4.17
0.45
Apr
2.13
2.15
-0.02
May
1.24
1.23
0.01
Jun
0.26
0.31
-0.05
Jul
0.01
0.02
-0.01
Aug
0.03
0.05
-0.02
Sep
0.13
0.14
-0.01
Oct
1.63
1.55
0.08
Nov
3.42
3.20
0.22
Dec
6.74
6.23
0.51
32.85
30.64
2.21