Viewing Station: IL-CK-42 : Mount Prospect 3.0 NE
Mar 26, 2007 - Nov 20, 20255,718 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.91"
November 1-20, 2025(20 of 20 days covered by obs)
NOAA Normal
1.60"
Departure from Normal
-0.69" : 57% of Normal
Year-To-Date: 22.84"
Jan 1 to Nov 20, 2025(322 of 324 days covered by obs)
NOAA Normal
34.31"
Departure from Normal
-11.47" : 67% of Normal
Water Year-To-Date: 2.82"
Oct 1, 2025 to Nov 20, 2025(51 of 51 days covered by obs)
NOAA Normal
4.82"
Departure from Normal
-2.00" : 59% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.89
1.99
-0.10
Feb
1.78
1.90
-0.12
Mar
2.24
2.24
0.00
Apr
3.74
3.71
0.03
May
4.37
4.50
-0.13
Jun
4.53
4.24
0.29
Jul
3.82
3.55
0.27
Aug
3.83
3.92
-0.09
Sep
3.29
3.24
0.05
Oct
3.22
3.27
-0.05
Nov
2.40
2.41
-0.01
Dec
2.07
2.11
-0.04
37.18
37.08
0.10