Viewing Station: IL-MCH-107 : Crystal Lake 3.9 WNW
Apr 1, 2022 - Sep 21, 2026530 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 4.66"
September 1-21, 2026(21 of 21 days covered by obs)
NOAA Normal
2.43"
Departure from Normal
2.23" : 192% of Normal
Year-To-Date: 31.72"
Jan 1 to Sep 21, 2026(195 of 264 days covered by obs)
NOAA Normal
28.64"
Departure from Normal
3.08" : 111% of Normal
Water Year-To-Date: 37.79"
Oct 1, 2025 to Sep 21, 2026(250 of 356 days covered by obs)
NOAA Normal
36.15"
Departure from Normal
1.64" : 105% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.75
1.80
-0.05
Feb
1.73
1.81
-0.08
Mar
2.19
2.22
-0.03
Apr
3.73
3.72
0.01
May
4.44
4.69
-0.25
Jun
4.67
4.82
-0.15
Jul
3.89
3.92
-0.03
Aug
3.81
3.88
-0.07
Sep
3.47
3.54
-0.07
Oct
3.08
3.15
-0.07
Nov
2.43
2.40
0.03
Dec
2.00
2.02
-0.02
37.19
37.97
-0.78