Viewing Station: IA-IA-2 : Marengo 2.6 SSW
Mar 10, 2010 - Jul 19, 20264,773 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 3.30"
July 1-21, 2026(19 of 21 days covered by obs)
NOAA Normal
2.83"
Departure from Normal
0.47" : 117% of Normal
Year-To-Date: 22.62"
Jan 1 to Jul 21, 2026(199 of 202 days covered by obs)
NOAA Normal
20.71"
Departure from Normal
1.91" : 109% of Normal
Water Year-To-Date: 27.32"
Oct 1, 2025 to Jul 21, 2026(290 of 294 days covered by obs)
NOAA Normal
27.16"
Departure from Normal
0.16" : 101% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.06
1.12
-0.06
Feb
1.25
1.34
-0.09
Mar
2.03
2.12
-0.09
Apr
3.69
3.63
0.06
May
4.61
4.75
-0.14
Jun
5.24
5.05
0.19
Jul
4.18
4.20
-0.02
Aug
4.14
4.21
-0.07
Sep
3.50
3.53
-0.03
Oct
2.89
2.80
0.09
Nov
2.08
2.09
-0.01
Dec
1.48
1.59
-0.11
36.15
36.43
-0.28