Viewing Station: IL-WL-103 : Joliet 1.8 NNE
May 18, 2012 - Oct 14, 20251,312 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.59"
October 1-18, 2025(14 of 18 days covered by obs)
NOAA Normal
1.94"
Departure from Normal
-1.35" : 30% of Normal
Year-To-Date: 29.29"
Jan 1 to Oct 18, 2025(287 of 291 days covered by obs)
NOAA Normal
32.30"
Departure from Normal
-3.01" : 91% of Normal
Water Year-To-Date: 0.59"
Oct 1, 2025 to Oct 18, 2025(14 of 18 days covered by obs)
NOAA Normal
1.94"
Departure from Normal
-1.35" : 30% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.04
2.06
-0.02
Feb
1.79
1.88
-0.09
Mar
2.34
2.40
-0.06
Apr
3.81
3.85
-0.04
May
4.50
4.64
-0.14
Jun
4.42
4.49
-0.07
Jul
4.14
4.21
-0.07
Aug
4.00
3.97
0.03
Sep
3.32
3.28
0.04
Oct
3.34
3.32
0.02
Nov
2.60
2.47
0.13
Dec
2.12
2.11
0.01
38.42
38.68
-0.26