Viewing Station: IL-DP-201 : Wheaton 1.4 NNE
Mar 26, 2025 - May 27, 2026351 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.15"
May 1-27, 2026(27 of 27 days covered by obs)
NOAA Normal
4.09"
Departure from Normal
-1.94" : 53% of Normal
Year-To-Date: 14.92"
Jan 1 to May 27, 2026(146 of 147 days covered by obs)
NOAA Normal
13.99"
Departure from Normal
0.93" : 107% of Normal
Water Year-To-Date: 21.55"
Oct 1, 2025 to May 27, 2026(238 of 239 days covered by obs)
NOAA Normal
22.05"
Departure from Normal
-0.50" : 98% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.89
2.06
-0.17
Feb
1.82
1.95
-0.13
Mar
2.35
2.30
0.05
Apr
3.84
3.83
0.01
May
4.70
4.73
-0.03
Jun
4.44
4.40
0.04
Jul
3.74
3.75
-0.01
Aug
3.89
4.03
-0.14
Sep
3.29
3.28
0.01
Oct
3.43
3.46
-0.03
Nov
2.54
2.61
-0.07
Dec
2.09
2.18
-0.09
38.02
38.58
-0.56