Viewing Station: IL-DP-132 : Wheaton 2.0 NNE
Jun 25, 2015 - May 27, 20263,994 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.88"
May 1-27, 2026(27 of 27 days covered by obs)
NOAA Normal
4.14"
Departure from Normal
-2.26" : 45% of Normal
Year-To-Date: 14.75"
Jan 1 to May 27, 2026(147 of 147 days covered by obs)
NOAA Normal
13.98"
Departure from Normal
0.77" : 106% of Normal
Water Year-To-Date: 21.93"
Oct 1, 2025 to May 27, 2026(239 of 239 days covered by obs)
NOAA Normal
21.95"
Departure from Normal
-0.02" : 100% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.86
2.06
-0.20
Feb
1.82
1.96
-0.14
Mar
2.33
2.29
0.04
Apr
3.83
3.82
0.01
May
4.75
4.72
0.03
Jun
4.45
4.40
0.05
Jul
3.75
3.74
0.01
Aug
3.89
4.04
-0.15
Sep
3.31
3.28
0.03
Oct
3.38
3.45
-0.07
Nov
2.51
2.61
-0.10
Dec
2.08
2.18
-0.10
37.96
38.55
-0.59