Viewing Station: IL-DP-141 : Glen Ellyn 1.1 WSW
Jun 23, 2016 - Sep 17, 20263,635 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.19"
September 1-17, 2026(17 of 17 days covered by obs)
NOAA Normal
1.88"
Departure from Normal
0.31" : 117% of Normal
Year-To-Date: 37.68"
Jan 1 to Sep 17, 2026(260 of 260 days covered by obs)
NOAA Normal
28.76"
Departure from Normal
8.92" : 131% of Normal
Water Year-To-Date: 45.47"
Oct 1, 2025 to Sep 17, 2026(352 of 352 days covered by obs)
NOAA Normal
36.90"
Departure from Normal
8.57" : 123% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.92
2.07
-0.15
Feb
1.85
1.96
-0.11
Mar
2.37
2.30
0.07
Apr
3.83
3.84
-0.01
May
4.76
4.73
0.03
Jun
4.49
4.41
0.08
Jul
3.75
3.76
-0.01
Aug
3.91
4.04
-0.13
Sep
3.31
3.28
0.03
Oct
3.47
3.48
-0.01
Nov
2.55
2.62
-0.07
Dec
2.12
2.19
-0.07
38.33
38.68
-0.35