Viewing Station: CA-SC-41 : Los Altos Hills 1.3 N
Oct 5, 2011 - Oct 16, 20253,914 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.16"
October 1-21, 2025(16 of 21 days covered by obs)
NOAA Normal
0.58"
Departure from Normal
0.58" : 201% of Normal
Year-To-Date: 9.29"
Jan 1 to Oct 21, 2025(290 of 294 days covered by obs)
NOAA Normal
14.30"
Departure from Normal
-5.01" : 65% of Normal
Water Year-To-Date: 1.16"
Oct 1, 2025 to Oct 21, 2025(16 of 21 days covered by obs)
NOAA Normal
0.58"
Departure from Normal
0.58" : 201% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
4.09
3.62
0.47
Feb
4.09
3.85
0.24
Mar
3.18
2.77
0.41
Apr
1.47
1.25
0.22
May
0.64
0.45
0.19
Jun
0.14
0.14
0.00
Jul
0.01
0.00
0.01
Aug
0.02
0.03
-0.01
Sep
0.08
0.06
0.02
Oct
0.85
0.70
0.15
Nov
2.04
1.73
0.31
Dec
4.07
3.56
0.51
20.68
18.16
2.52