Viewing Station: CA-SF-4 : San Francisco 1.1 SW
Feb 5, 2009 - Sep 30, 20234,982 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.00"
September 1-17, 2025(0 of 17 days covered by obs)
NOAA Normal
0.06"
Departure from Normal
-0.06" : 0% of Normal
Year-To-Date: 0.00"
Jan 1 to Sep 17, 2025(0 of 260 days covered by obs)
NOAA Normal
15.61"
Departure from Normal
-15.61" : 0% of Normal
Water Year-To-Date: 0.00"
Oct 1, 2024 to Sep 17, 2025(0 of 352 days covered by obs)
NOAA Normal
24.59"
Departure from Normal
-24.59" : 0% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
4.64
4.32
0.32
Feb
4.70
4.82
-0.12
Mar
3.48
3.20
0.28
Apr
1.69
1.30
0.39
May
0.79
0.74
0.05
Jun
0.19
0.21
-0.02
Jul
0.01
0.02
-0.01
Aug
0.05
0.06
-0.01
Sep
0.11
0.10
0.01
Oct
1.11
0.96
0.15
Nov
2.73
2.85
-0.12
Dec
5.14
6.18
-1.04
24.64
24.76
-0.12