Viewing Station: IA-JH-20 : Coralville 1.4 S
Oct 4, 2017 - Sep 15, 20252,880 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.06"
September 1-15, 2025(15 of 15 days covered by obs)
NOAA Normal
1.81"
Departure from Normal
-1.75" : 3% of Normal
Year-To-Date: 20.90"
Jan 1 to Sep 15, 2025(254 of 258 days covered by obs)
NOAA Normal
28.64"
Departure from Normal
-7.74" : 73% of Normal
Water Year-To-Date: 28.28"
Oct 1, 2024 to Sep 15, 2025(345 of 350 days covered by obs)
NOAA Normal
35.30"
Departure from Normal
-7.02" : 80% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.10
1.16
-0.06
Feb
1.36
1.41
-0.05
Mar
2.16
2.26
-0.10
Apr
3.68
3.77
-0.09
May
4.60
4.67
-0.07
Jun
5.38
5.23
0.15
Jul
4.24
4.23
0.01
Aug
4.30
4.11
0.19
Sep
3.63
3.39
0.24
Oct
2.92
2.93
-0.01
Nov
2.16
2.19
-0.03
Dec
1.58
1.62
-0.04
37.11
36.97
0.14