Viewing Station: IL-WF-16 : Congerville 0.6 WSW
Apr 11, 2013 - Sep 17, 20253,490 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.02"
September 1-17, 2025(17 of 17 days covered by obs)
NOAA Normal
1.81"
Departure from Normal
-1.79" : 1% of Normal
Year-To-Date: 22.22"
Jan 1 to Sep 17, 2025(260 of 260 days covered by obs)
NOAA Normal
28.40"
Departure from Normal
-6.18" : 78% of Normal
Water Year-To-Date: 28.62"
Oct 1, 2024 to Sep 17, 2025(352 of 352 days covered by obs)
NOAA Normal
36.40"
Departure from Normal
-7.78" : 79% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.09
2.10
-0.01
Feb
1.82
1.85
-0.03
Mar
2.56
2.53
0.03
Apr
3.80
3.72
0.08
May
4.56
4.61
-0.05
Jun
4.07
4.03
0.04
Jul
4.08
3.80
0.28
Aug
3.61
3.54
0.07
Sep
3.20
3.24
-0.04
Oct
3.16
3.12
0.04
Nov
2.71
2.69
0.02
Dec
2.13
2.09
0.04
37.79
37.32
0.47