Viewing Station: CA-SC-41 : Los Altos Hills 1.3 N
Oct 5, 2011 - Dec 19, 20253,971 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.04"
December 1-19, 2025(19 of 19 days covered by obs)
NOAA Normal
2.49"
Departure from Normal
-2.45" : 2% of Normal
Year-To-Date: 12.41"
Jan 1 to Dec 19, 2025(354 of 353 days covered by obs)
NOAA Normal
19.10"
Departure from Normal
-6.69" : 65% of Normal
Water Year-To-Date: 4.28"
Oct 1, 2025 to Dec 19, 2025(80 of 80 days covered by obs)
NOAA Normal
5.38"
Departure from Normal
-1.10" : 79% 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