Viewing Station: IL-WL-175 : Joliet 0.7 WNW
Jul 8, 2021 - Apr 29, 20261,751 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 7.54"
April 1-29, 2026(29 of 29 days covered by obs)
NOAA Normal
3.66"
Departure from Normal
3.88" : 206% of Normal
Year-To-Date: 15.20"
Jan 1 to Apr 29, 2026(118 of 119 days covered by obs)
NOAA Normal
9.79"
Departure from Normal
5.41" : 155% of Normal
Water Year-To-Date: 21.22"
Oct 1, 2025 to Apr 29, 2026(210 of 211 days covered by obs)
NOAA Normal
17.76"
Departure from Normal
3.46" : 119% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.02
2.04
-0.02
Feb
1.76
1.87
-0.11
Mar
2.35
2.36
-0.01
Apr
3.79
3.83
-0.04
May
4.57
4.61
-0.04
Jun
4.41
4.45
-0.04
Jul
4.16
4.20
-0.04
Aug
3.97
3.93
0.04
Sep
3.27
3.28
-0.01
Oct
3.30
3.28
0.02
Nov
2.57
2.47
0.10
Dec
2.10
2.10
0.00
38.27
38.42
-0.15