Viewing Station: CA-LA-143 : Altadena 1.9 W
Sep 21, 2024 - Sep 22, 2026702 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.25"
September 1-22, 2026(22 of 22 days covered by obs)
NOAA Normal
0.14"
Departure from Normal
1.11" : 897% of Normal
Year-To-Date: 11.01"
Jan 1 to Sep 22, 2026(265 of 265 days covered by obs)
NOAA Normal
15.05"
Departure from Normal
-4.04" : 73% of Normal
Water Year-To-Date: 27.32"
Oct 1, 2025 to Sep 22, 2026(357 of 357 days covered by obs)
NOAA Normal
20.27"
Departure from Normal
7.05" : 135% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
4.56
4.58
-0.02
Feb
5.41
5.42
-0.01
Mar
3.12
3.64
-0.52
Apr
1.14
1.22
-0.08
May
0.51
0.69
-0.18
Jun
0.13
0.22
-0.09
Jul
0.03
0.08
-0.05
Aug
0.01
0.02
-0.01
Sep
0.19
0.21
-0.02
Oct
0.79
0.91
-0.12
Nov
1.28
1.11
0.17
Dec
3.15
3.13
0.02
20.32
21.23
-0.91