Viewing Station: IL-WL-175 : Joliet 0.7 WNW
Jul 8, 2021 - Aug 24, 20261,868 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 8.72"
August 1-24, 2026(24 of 24 days covered by obs)
NOAA Normal
3.07"
Departure from Normal
5.65" : 284% of Normal
Year-To-Date: 39.86"
Jan 1 to Aug 24, 2026(235 of 236 days covered by obs)
NOAA Normal
26.13"
Departure from Normal
13.73" : 153% of Normal
Water Year-To-Date: 45.88"
Oct 1, 2025 to Aug 24, 2026(327 of 328 days covered by obs)
NOAA Normal
34.10"
Departure from Normal
11.78" : 135% 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