Viewing Station: IL-MA-41 : Decatur 3.0 W
Dec 25, 2025 - Aug 24, 2026242 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 5.42"
August 1-24, 2026(24 of 24 days covered by obs)
NOAA Normal
2.52"
Departure from Normal
2.90" : 215% of Normal
Year-To-Date: 35.80"
Jan 1 to Aug 24, 2026(236 of 236 days covered by obs)
NOAA Normal
26.22"
Departure from Normal
9.58" : 137% of Normal
Water Year-To-Date: 36.08"
Oct 1, 2025 to Aug 24, 2026(243 of 328 days covered by obs)
NOAA Normal
34.80"
Departure from Normal
1.28" : 104% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.10
2.31
-0.21
Feb
1.93
2.01
-0.08
Mar
2.67
2.69
-0.02
Apr
4.08
4.12
-0.04
May
4.54
4.63
-0.09
Jun
4.43
4.59
-0.16
Jul
3.95
3.65
0.30
Aug
3.25
3.24
0.01
Sep
2.99
3.10
-0.11
Oct
3.30
3.25
0.05
Nov
3.01
3.09
-0.08
Dec
2.27
2.37
-0.10
38.52
39.05
-0.53