Viewing Station: CA-SN-61 : Santa Rosa 1.3 NW
Feb 1, 2009 - Sep 9, 20266,254 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.34"
September 1-10, 2026(9 of 10 days covered by obs)
NOAA Normal
0.04"
Departure from Normal
0.30" : 785% of Normal
Year-To-Date: 16.17"
Jan 1 to Sep 10, 2026(252 of 253 days covered by obs)
NOAA Normal
20.97"
Departure from Normal
-4.80" : 77% of Normal
Water Year-To-Date: 30.22"
Oct 1, 2025 to Sep 10, 2026(344 of 345 days covered by obs)
NOAA Normal
32.76"
Departure from Normal
-2.54" : 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