Viewing Station: IL-CK-367 : Mount Prospect 0.2 NNE
Jul 18, 2021 - May 27, 20261,653 Total Observations
View:

Climatology

Precipitation Normals Comparison

Month-To-Date: 1.00"
May 1-27, 2026(27 of 27 days covered by obs)
NOAA Normal
3.91"
Departure from Normal
-2.91" : 26% of Normal
Year-To-Date: 16.27"
Jan 1 to May 27, 2026(147 of 147 days covered by obs)
NOAA Normal
13.59"
Departure from Normal
2.68" : 120% of Normal
Water Year-To-Date: 21.56"
Oct 1, 2025 to May 27, 2026(236 of 239 days covered by obs)
NOAA Normal
21.30"
Departure from Normal
0.26" : 101% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.89
2.00
-0.11
Feb
1.78
1.90
-0.12
Mar
2.26
2.23
0.03
Apr
3.75
3.72
0.03
May
4.49
4.54
-0.05
Jun
4.59
4.27
0.32
Jul
3.82
3.58
0.24
Aug
3.84
3.96
-0.12
Sep
3.33
3.23
0.10
Oct
3.23
3.25
-0.02
Nov
2.40
2.41
-0.01
Dec
2.08
2.12
-0.04
37.46
37.21
0.25