Viewing Station: IL-WL-174 : Joliet 0.8 E
Jul 13, 2021 - Aug 25, 20261,303 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 6.99"
August 1-25, 2026(25 of 25 days covered by obs)
NOAA Normal
3.23"
Departure from Normal
3.76" : 216% of Normal
Year-To-Date: 30.19"
Jan 1 to Aug 25, 2026(153 of 237 days covered by obs)
NOAA Normal
26.34"
Departure from Normal
3.85" : 115% of Normal
Water Year-To-Date: 33.06"
Oct 1, 2025 to Aug 25, 2026(224 of 329 days covered by obs)
NOAA Normal
34.32"
Departure from Normal
-1.26" : 96% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.02
2.04
-0.02
Feb
1.77
1.87
-0.10
Mar
2.36
2.36
0.00
Apr
3.79
3.82
-0.03
May
4.58
4.61
-0.03
Jun
4.43
4.44
-0.01
Jul
4.16
4.21
-0.05
Aug
4.01
3.93
0.08
Sep
3.29
3.28
0.01
Oct
3.31
3.28
0.03
Nov
2.57
2.47
0.10
Dec
2.10
2.09
0.01
38.39
38.40
-0.01