Viewing Station: IL-MA-27 : Decatur 3.2 SW
Mar 11, 2020 - Dec 12, 20251,390 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.42"
December 1-15, 2025(12 of 15 days covered by obs)
NOAA Normal
1.11"
Departure from Normal
0.31" : 128% of Normal
Year-To-Date: 29.52"
Jan 1 to Dec 15, 2025(344 of 349 days covered by obs)
NOAA Normal
37.62"
Departure from Normal
-8.10" : 78% of Normal
Water Year-To-Date: 5.13"
Oct 1, 2025 to Dec 15, 2025(73 of 76 days covered by obs)
NOAA Normal
7.46"
Departure from Normal
-2.33" : 69% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.13
2.32
-0.19
Feb
1.94
2.01
-0.07
Mar
2.70
2.69
0.01
Apr
4.12
4.14
-0.02
May
4.58
4.62
-0.04
Jun
4.50
4.59
-0.09
Jul
3.93
3.62
0.31
Aug
3.26
3.23
0.03
Sep
3.00
3.10
-0.10
Oct
3.31
3.25
0.06
Nov
3.04
3.10
-0.06
Dec
2.30
2.38
-0.08
38.81
39.05
-0.24