Viewing Station: CA-MR-13 : Mill Valley 1.5 S
Oct 18, 2010 - Sep 22, 20264,953 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.33"
September 1-22, 2026(22 of 22 days covered by obs)
NOAA Normal
0.09"
Departure from Normal
0.24" : 375% of Normal
Year-To-Date: 19.19"
Jan 1 to Sep 22, 2026(260 of 265 days covered by obs)
NOAA Normal
22.20"
Departure from Normal
-3.01" : 86% of Normal
Water Year-To-Date: 31.31"
Oct 1, 2025 to Sep 22, 2026(351 of 357 days covered by obs)
NOAA Normal
35.42"
Departure from Normal
-4.11" : 88% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
6.70
6.35
0.35
Feb
6.72
6.92
-0.20
Mar
4.93
4.18
0.75
Apr
2.30
2.18
0.12
May
1.08
1.16
-0.08
Jun
0.28
0.41
-0.13
Jul
0.01
0.02
-0.01
Aug
0.09
0.08
0.01
Sep
0.12
0.15
-0.03
Oct
1.63
1.40
0.23
Nov
3.89
3.98
-0.09
Dec
7.70
7.94
-0.24
35.45
34.77
0.68