Viewing Station: CA-SF-20 : San Francisco 3.1 W
Jan 18, 2021 - Jul 23, 20251,270 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.22"
July 1-23, 2025(22 of 23 days covered by obs)
NOAA Normal
0.01"
Departure from Normal
0.21" : 2965% of Normal
Year-To-Date: 9.71"
Jan 1 to Jul 23, 2025(164 of 204 days covered by obs)
NOAA Normal
16.52"
Departure from Normal
-6.81" : 59% of Normal
Water Year-To-Date: 20.90"
Oct 1, 2024 to Jul 23, 2025(240 of 296 days covered by obs)
NOAA Normal
26.11"
Departure from Normal
-5.21" : 80% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
4.97
4.63
0.34
Feb
5.02
4.96
0.06
Mar
3.69
3.45
0.24
Apr
1.80
1.51
0.29
May
0.82
0.79
0.03
Jun
0.21
0.21
0.00
Jul
0.01
0.02
-0.01
Aug
0.06
0.06
0.00
Sep
0.12
0.11
0.01
Oct
1.18
1.02
0.16
Nov
2.90
2.63
0.27
Dec
5.51
5.71
-0.20
26.29
25.10
1.19