Viewing Station: IL-MCH-83 : Crystal Lake 1.0 WSW
Mar 7, 2017 - Sep 22, 20263,280 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 4.55"
September 1-23, 2026(21 of 23 days covered by obs)
NOAA Normal
2.68"
Departure from Normal
1.87" : 170% of Normal
Year-To-Date: 32.73"
Jan 1 to Sep 23, 2026(263 of 266 days covered by obs)
NOAA Normal
29.14"
Departure from Normal
3.59" : 112% of Normal
Water Year-To-Date: 39.25"
Oct 1, 2025 to Sep 23, 2026(355 of 358 days covered by obs)
NOAA Normal
36.71"
Departure from Normal
2.54" : 107% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.75
1.81
-0.06
Feb
1.75
1.82
-0.07
Mar
2.22
2.20
0.02
Apr
3.75
3.68
0.07
May
4.55
4.75
-0.20
Jun
4.66
4.79
-0.13
Jul
3.96
3.94
0.02
Aug
3.82
3.89
-0.07
Sep
3.49
3.52
-0.03
Oct
3.14
3.16
-0.02
Nov
2.41
2.42
-0.01
Dec
2.02
2.03
-0.01
37.52
38.01
-0.49