Viewing Station: IL-DP-98 : Downers Grove 0.9 S
Jun 20, 2010 - May 27, 20263,478 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.21"
May 1-27, 2026(27 of 27 days covered by obs)
NOAA Normal
3.99"
Departure from Normal
-1.78" : 55% of Normal
Year-To-Date: 7.17"
Jan 1 to May 27, 2026(57 of 147 days covered by obs)
NOAA Normal
14.13"
Departure from Normal
-6.96" : 51% of Normal
Water Year-To-Date: 10.85"
Oct 1, 2025 to May 27, 2026(114 of 239 days covered by obs)
NOAA Normal
22.45"
Departure from Normal
-11.60" : 48% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.02
2.14
-0.12
Feb
1.83
1.98
-0.15
Mar
2.41
2.36
0.05
Apr
3.88
3.92
-0.04
May
4.58
4.71
-0.13
Jun
4.44
4.44
0.00
Jul
3.85
3.89
-0.04
Aug
4.14
4.05
0.09
Sep
3.29
3.25
0.04
Oct
3.54
3.55
-0.01
Nov
2.61
2.65
-0.04
Dec
2.17
2.22
-0.05
38.76
39.16
-0.40