Viewing Station: CA-LA-129 : San Dimas 2.1 WSW
May 1, 2023 - Sep 22, 20261,185 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.57"
September 1-22, 2026(22 of 22 days covered by obs)
NOAA Normal
0.10"
Departure from Normal
0.47" : 598% of Normal
Year-To-Date: 9.51"
Jan 1 to Sep 22, 2026(261 of 265 days covered by obs)
NOAA Normal
12.53"
Departure from Normal
-3.02" : 76% of Normal
Water Year-To-Date: 20.92"
Oct 1, 2025 to Sep 22, 2026(352 of 357 days covered by obs)
NOAA Normal
16.93"
Departure from Normal
3.99" : 124% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.95
3.78
0.17
Feb
4.50
4.35
0.15
Mar
2.56
2.62
-0.06
Apr
0.96
0.82
0.14
May
0.33
0.44
-0.11
Jun
0.09
0.13
-0.04
Jul
0.03
0.07
-0.04
Aug
0.01
0.01
0.00
Sep
0.13
0.13
0.00
Oct
0.59
0.76
-0.17
Nov
1.15
0.97
0.18
Dec
2.66
2.68
-0.02
16.96
16.76
0.20