Viewing Station: IL-WL-103 : Joliet 1.8 NNE
May 18, 2012 - Feb 24, 20261,446 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.10"
February 1-27, 2026(24 of 27 days covered by obs)
NOAA Normal
1.73"
Departure from Normal
-1.63" : 6% of Normal
Year-To-Date: 2.85"
Jan 1 to Feb 27, 2026(55 of 58 days covered by obs)
NOAA Normal
3.77"
Departure from Normal
-0.92" : 76% of Normal
Water Year-To-Date: 8.32"
Oct 1, 2025 to Feb 27, 2026(147 of 150 days covered by obs)
NOAA Normal
11.83"
Departure from Normal
-3.51" : 70% 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