Viewing Station: IA-JH-20 : Coralville 1.4 S
Oct 4, 2017 - Aug 18, 20263,217 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 4.41"
August 1-18, 2026(18 of 18 days covered by obs)
NOAA Normal
2.50"
Departure from Normal
1.91" : 177% of Normal
Year-To-Date: 26.44"
Jan 1 to Aug 18, 2026(227 of 230 days covered by obs)
NOAA Normal
25.02"
Departure from Normal
1.42" : 106% of Normal
Water Year-To-Date: 30.84"
Oct 1, 2025 to Aug 18, 2026(318 of 322 days covered by obs)
NOAA Normal
31.68"
Departure from Normal
-0.84" : 97% 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