Viewing Station: IL-WL-103 : Joliet 1.8 NNE
May 18, 2012 - May 1, 20261,514 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.08"
May 1-3, 2026(1 of 3 days covered by obs)
NOAA Normal
0.44"
Departure from Normal
-0.36" : 18% of Normal
Year-To-Date: 13.31"
Jan 1 to May 3, 2026(121 of 123 days covered by obs)
NOAA Normal
10.42"
Departure from Normal
2.89" : 128% of Normal
Water Year-To-Date: 18.78"
Oct 1, 2025 to May 3, 2026(213 of 215 days covered by obs)
NOAA Normal
18.48"
Departure from Normal
0.30" : 102% 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