Viewing Station: IL-DP-157 : West Chicago 3.5 NNE
Apr 3, 2019 - Mar 27, 20261,661 Total Observations
View:

Climatology

Precipitation Normals Comparison

Month-To-Date: 0.27"
March 1-27, 2026(2 of 27 days covered by obs)
NOAA Normal
1.99"
Departure from Normal
-1.72" : 14% of Normal
Year-To-Date: 1.57"
Jan 1 to Mar 27, 2026(15 of 86 days covered by obs)
NOAA Normal
5.52"
Departure from Normal
-3.95" : 28% of Normal
Water Year-To-Date: 8.89"
Oct 1, 2025 to Mar 27, 2026(107 of 178 days covered by obs)
NOAA Normal
13.37"
Departure from Normal
-4.48" : 66% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.77
1.95
-0.18
Feb
1.76
1.86
-0.10
Mar
2.29
2.27
0.02
Apr
3.77
3.76
0.01
May
4.72
4.75
-0.03
Jun
4.42
4.30
0.12
Jul
3.73
3.69
0.04
Aug
3.91
3.94
-0.03
Sep
3.33
3.33
0.00
Oct
3.34
3.36
-0.02
Nov
2.48
2.54
-0.06
Dec
2.03
2.12
-0.09
37.55
37.87
-0.32