Viewing Station: CA-BT-42 : Chico 8.1 SSW
Jun 8, 2021 - Sep 22, 20261,521 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.00"
September 1-22, 2026(22 of 22 days covered by obs)
NOAA Normal
0.13"
Departure from Normal
-0.13" : 0% of Normal
Year-To-Date: 12.01"
Jan 1 to Sep 22, 2026(264 of 265 days covered by obs)
NOAA Normal
16.33"
Departure from Normal
-4.32" : 74% of Normal
Water Year-To-Date: 22.89"
Oct 1, 2025 to Sep 22, 2026(354 of 357 days covered by obs)
NOAA Normal
24.18"
Departure from Normal
-1.29" : 95% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
4.68
4.73
-0.05
Feb
4.74
4.53
0.21
Mar
3.49
3.58
-0.09
Apr
1.67
1.83
-0.16
May
1.14
1.16
-0.02
Jun
0.41
0.46
-0.05
Jul
0.01
0.02
-0.01
Aug
0.06
0.07
-0.01
Sep
0.18
0.18
0.00
Oct
1.35
1.26
0.09
Nov
2.41
2.45
-0.04
Dec
4.09
4.70
-0.61
24.23
24.97
-0.74