Viewing Station: IL-MCH-102 : Algonquin 3.4 W
Mar 29, 2021 - Sep 21, 2026219 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 3.99"
September 1-22, 2026(9 of 22 days covered by obs)
NOAA Normal
2.57"
Departure from Normal
1.42" : 155% of Normal
Year-To-Date: 14.16"
Jan 1 to Sep 22, 2026(29 of 265 days covered by obs)
NOAA Normal
29.26"
Departure from Normal
-15.10" : 48% of Normal
Water Year-To-Date: 14.31"
Oct 1, 2025 to Sep 22, 2026(30 of 357 days covered by obs)
NOAA Normal
36.94"
Departure from Normal
-22.63" : 39% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.75
1.83
-0.08
Feb
1.76
1.82
-0.06
Mar
2.26
2.20
0.06
Apr
3.74
3.67
0.07
May
4.66
4.80
-0.14
Jun
4.71
4.71
0.00
Jul
3.94
3.93
0.01
Aug
3.87
3.94
-0.07
Sep
3.51
3.50
0.01
Oct
3.19
3.16
0.03
Nov
2.43
2.44
-0.01
Dec
2.06
2.06
0.00
37.88
38.06
-0.18