Viewing Station: IA-AL-3 : Monona 9.8 N
Apr 22, 2018 - Sep 18, 2025530 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.73"
September 1-18, 2025(5 of 18 days covered by obs)
NOAA Normal
2.45"
Departure from Normal
-1.72" : 30% of Normal
Year-To-Date: 18.44"
Jan 1 to Sep 18, 2025(46 of 261 days covered by obs)
NOAA Normal
30.50"
Departure from Normal
-12.06" : 60% of Normal
Water Year-To-Date: 25.48"
Oct 1, 2024 to Sep 18, 2025(68 of 353 days covered by obs)
NOAA Normal
36.94"
Departure from Normal
-11.46" : 69% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.19
1.16
0.03
Feb
1.23
1.17
0.06
Mar
2.04
1.92
0.12
Apr
3.98
4.00
-0.02
May
4.86
4.78
0.08
Jun
5.92
5.85
0.07
Jul
4.61
4.59
0.02
Aug
4.22
4.25
-0.03
Sep
4.08
3.82
0.26
Oct
2.79
2.76
0.03
Nov
2.12
1.99
0.13
Dec
1.53
1.50
0.03
38.57
37.79
0.78