Viewing Station: IL-CK-467 : Arlington Heights 3.9 NNW
Jun 22, 2026 - Aug 24, 202654 Total Observations
View:

Climatology

Precipitation Normals Comparison

Month-To-Date: 4.91"
August 1-24, 2026(21 of 24 days covered by obs)
NOAA Normal
3.00"
Departure from Normal
1.91" : 163% of Normal
Year-To-Date: 8.11"
Jan 1 to Aug 24, 2026(54 of 236 days covered by obs)
NOAA Normal
25.56"
Departure from Normal
-17.45" : 32% of Normal
Water Year-To-Date: 8.11"
Oct 1, 2025 to Aug 24, 2026(54 of 328 days covered by obs)
NOAA Normal
33.30"
Departure from Normal
-25.19" : 24% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.87
1.93
-0.06
Feb
1.76
1.89
-0.13
Mar
2.24
2.24
0.00
Apr
3.77
3.68
0.09
May
4.42
4.50
-0.08
Jun
4.61
4.28
0.33
Jul
3.89
3.63
0.26
Aug
3.88
3.88
0.00
Sep
3.39
3.29
0.10
Oct
3.23
3.23
0.00
Nov
2.44
2.33
0.11
Dec
2.07
2.07
0.00
37.57
36.95
0.62