Viewing Station: CA-SN-174 : Petaluma 1.4 S
Nov 8, 2021 - May 10, 20251,189 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.00"
May 1-10, 2025(10 of 10 days covered by obs)
NOAA Normal
0.34"
Departure from Normal
-0.34" : 0% of Normal
Year-To-Date: 12.17"
Jan 1 to May 10, 2025(130 of 130 days covered by obs)
NOAA Normal
17.98"
Departure from Normal
-5.81" : 68% of Normal
Water Year-To-Date: 28.39"
Oct 1, 2024 to May 10, 2025(221 of 222 days covered by obs)
NOAA Normal
28.81"
Departure from Normal
-0.42" : 99% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
5.77
6.23
-0.46
Feb
5.84
6.29
-0.45
Mar
4.12
3.71
0.41
Apr
1.91
1.93
-0.02
May
1.06
1.00
0.06
Jun
0.24
0.27
-0.03
Jul
0.01
0.00
0.01
Aug
0.04
0.04
0.00
Sep
0.11
0.08
0.03
Oct
1.48
1.29
0.19
Nov
3.25
2.69
0.56
Dec
6.10
6.24
-0.14
29.93
29.77
0.16