Viewing Station: CA-SC-42 : Sunnyvale 3.6 S (W6NW)
Sep 25, 2011 - Dec 22, 20254,924 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.01"
December 1-22, 2025(4 of 22 days covered by obs)
NOAA Normal
2.50"
Departure from Normal
-2.49" : 0% of Normal
Year-To-Date: 10.64"
Jan 1 to Dec 22, 2025(300 of 356 days covered by obs)
NOAA Normal
17.20"
Departure from Normal
-6.56" : 62% of Normal
Water Year-To-Date: 3.87"
Oct 1, 2025 to Dec 22, 2025(38 of 83 days covered by obs)
NOAA Normal
5.02"
Departure from Normal
-1.15" : 77% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.59
3.35
0.24
Feb
3.72
3.50
0.22
Mar
2.82
2.49
0.33
Apr
1.27
1.04
0.23
May
0.57
0.41
0.16
Jun
0.12
0.13
-0.01
Jul
0.00
0.00
0.00
Aug
0.02
0.03
-0.01
Sep
0.07
0.05
0.02
Oct
0.74
0.64
0.10
Nov
1.78
1.45
0.33
Dec
3.52
3.03
0.49
18.22
16.12
2.10