Viewing Station: CA-SN-139 : Healdsburg 0.7 NE
Oct 20, 2017 - Dec 22, 2025541 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 4.71"
December 1-22, 2025(6 of 22 days covered by obs)
NOAA Normal
6.00"
Departure from Normal
-1.29" : 78% of Normal
Year-To-Date: 38.30"
Jan 1 to Dec 22, 2025(55 of 356 days covered by obs)
NOAA Normal
38.00"
Departure from Normal
0.30" : 101% of Normal
Water Year-To-Date: 14.19"
Oct 1, 2025 to Dec 22, 2025(24 of 83 days covered by obs)
NOAA Normal
11.85"
Departure from Normal
2.34" : 120% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
7.96
8.29
-0.33
Feb
7.85
8.16
-0.31
Mar
5.78
5.92
-0.14
Apr
2.66
2.65
0.01
May
1.46
1.58
-0.12
Jun
0.27
0.29
-0.02
Jul
0.01
0.01
0.00
Aug
0.03
0.04
-0.01
Sep
0.13
0.10
0.03
Oct
1.79
1.85
-0.06
Nov
4.06
4.15
-0.09
Dec
8.46
8.57
-0.11
40.46
41.61
-1.15