Viewing Station: IL-MCH-103 : Harvard 4.4 NNE
Jul 13, 2021 - Sep 21, 20261,900 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 5.71"
September 1-22, 2026(21 of 22 days covered by obs)
NOAA Normal
2.56"
Departure from Normal
3.15" : 223% of Normal
Year-To-Date: 37.72"
Jan 1 to Sep 22, 2026(264 of 265 days covered by obs)
NOAA Normal
29.08"
Departure from Normal
8.64" : 130% of Normal
Water Year-To-Date: 44.05"
Oct 1, 2025 to Sep 22, 2026(356 of 357 days covered by obs)
NOAA Normal
36.53"
Departure from Normal
7.52" : 121% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.73
1.71
0.02
Feb
1.62
1.72
-0.10
Mar
2.21
2.24
-0.03
Apr
3.77
3.68
0.09
May
4.35
4.32
0.03
Jun
4.92
5.09
-0.17
Jul
3.86
3.71
0.15
Aug
4.06
3.91
0.15
Sep
3.49
3.66
-0.17
Oct
3.02
2.94
0.08
Nov
2.40
2.37
0.03
Dec
2.03
1.99
0.04
37.46
37.34
0.12