Viewing Station: CA-BT-9 : Chico 2.9 W
Oct 1, 2012 - Dec 22, 20252,564 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.34"
December 1-22, 2025(6 of 22 days covered by obs)
NOAA Normal
2.91"
Departure from Normal
-0.57" : 80% of Normal
Year-To-Date: 21.89"
Jan 1 to Dec 22, 2025(61 of 356 days covered by obs)
NOAA Normal
25.41"
Departure from Normal
-3.52" : 86% of Normal
Water Year-To-Date: 8.95"
Oct 1, 2025 to Dec 22, 2025(25 of 83 days covered by obs)
NOAA Normal
7.00"
Departure from Normal
1.95" : 128% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
5.16
4.91
0.25
Feb
5.18
4.70
0.48
Mar
4.07
3.70
0.37
Apr
1.98
1.96
0.02
May
1.22
1.33
-0.11
Jun
0.51
0.51
0.00
Jul
0.01
0.02
-0.01
Aug
0.08
0.08
0.00
Sep
0.20
0.16
0.04
Oct
1.41
1.30
0.11
Nov
2.68
2.45
0.23
Dec
4.10
5.07
-0.97
26.60
26.19
0.41