Viewing Station: IL-CK-163 : Arlington Heights 1.2 SW
Mar 28, 2010 - Nov 2, 20253,324 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.04"
November 1-4, 2025(2 of 4 days covered by obs)
NOAA Normal
0.32"
Departure from Normal
-0.28" : 12% of Normal
Year-To-Date: 22.50"
Jan 1 to Nov 4, 2025(232 of 308 days covered by obs)
NOAA Normal
33.40"
Departure from Normal
-10.90" : 67% of Normal
Water Year-To-Date: 2.68"
Oct 1, 2025 to Nov 4, 2025(33 of 35 days covered by obs)
NOAA Normal
3.53"
Departure from Normal
-0.85" : 76% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.88
1.98
-0.10
Feb
1.78
1.90
-0.12
Mar
2.27
2.23
0.04
Apr
3.76
3.70
0.06
May
4.52
4.56
-0.04
Jun
4.61
4.28
0.33
Jul
3.84
3.62
0.22
Aug
3.85
3.97
-0.12
Sep
3.36
3.25
0.11
Oct
3.21
3.24
-0.03
Nov
2.41
2.38
0.03
Dec
2.08
2.11
-0.03
37.57
37.22
0.35