Viewing Station: IL-MA-41 : Decatur 3.0 W
Dec 25, 2025 - Sep 23, 2026272 Total Observations
View:

Climatology

Precipitation Normals Comparison

Month-To-Date: 1.95"
September 1-23, 2026(23 of 23 days covered by obs)
NOAA Normal
2.29"
Departure from Normal
-0.34" : 85% of Normal
Year-To-Date: 37.75"
Jan 1 to Sep 23, 2026(266 of 266 days covered by obs)
NOAA Normal
29.24"
Departure from Normal
8.51" : 129% of Normal
Water Year-To-Date: 38.03"
Oct 1, 2025 to Sep 23, 2026(273 of 358 days covered by obs)
NOAA Normal
37.82"
Departure from Normal
0.21" : 101% 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