Viewing Station: IA-BT-12 : Fairfax 4.0 NW
Apr 1, 2017 - Sep 15, 20253,062 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.08"
September 1-15, 2025(15 of 15 days covered by obs)
NOAA Normal
1.81"
Departure from Normal
-1.73" : 4% of Normal
Year-To-Date: 25.23"
Jan 1 to Sep 15, 2025(258 of 258 days covered by obs)
NOAA Normal
28.50"
Departure from Normal
-3.27" : 89% of Normal
Water Year-To-Date: 33.39"
Oct 1, 2024 to Sep 15, 2025(350 of 350 days covered by obs)
NOAA Normal
35.07"
Departure from Normal
-1.68" : 95% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.02
1.12
-0.10
Feb
1.21
1.31
-0.10
Mar
1.96
2.09
-0.13
Apr
3.80
3.74
0.06
May
4.51
4.54
-0.03
Jun
5.59
5.56
0.03
Jul
4.33
4.41
-0.08
Aug
4.27
4.17
0.10
Sep
3.61
3.66
-0.05
Oct
2.91
2.90
0.01
Nov
2.13
2.12
0.01
Dec
1.53
1.61
-0.08
36.87
37.23
-0.36