Viewing Station: IL-WL-100 : Joliet 2.9 WNW
Jul 31, 2012 - May 25, 20264,413 Total Observations
View:

Climatology

Precipitation Normals Comparison

Month-To-Date: 2.14"
May 1-26, 2026(25 of 26 days covered by obs)
NOAA Normal
3.83"
Departure from Normal
-1.69" : 56% of Normal
Year-To-Date: 16.10"
Jan 1 to May 26, 2026(145 of 146 days covered by obs)
NOAA Normal
13.66"
Departure from Normal
2.44" : 118% of Normal
Water Year-To-Date: 21.73"
Oct 1, 2025 to May 26, 2026(237 of 238 days covered by obs)
NOAA Normal
21.57"
Departure from Normal
0.16" : 101% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.01
2.05
-0.04
Feb
1.74
1.87
-0.13
Mar
2.32
2.36
-0.04
Apr
3.76
3.83
-0.07
May
4.57
4.60
-0.03
Jun
4.43
4.45
-0.02
Jul
4.12
4.17
-0.05
Aug
3.97
3.91
0.06
Sep
3.24
3.29
-0.05
Oct
3.28
3.29
-0.01
Nov
2.55
2.49
0.06
Dec
2.08
2.11
-0.03
38.07
38.42
-0.35