Viewing Station: IL-WL-92 : Naperville 4.0 SSW
Mar 20, 2012 - May 9, 20254,569 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.75"
May 1-9, 2025(9 of 9 days covered by obs)
NOAA Normal
1.31"
Departure from Normal
-0.56" : 57% of Normal
Year-To-Date: 9.47"
Jan 1 to May 9, 2025(129 of 129 days covered by obs)
NOAA Normal
11.20"
Departure from Normal
-1.73" : 85% of Normal
Water Year-To-Date: 15.81"
Oct 1, 2024 to May 9, 2025(221 of 221 days covered by obs)
NOAA Normal
19.29"
Departure from Normal
-3.48" : 82% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.00
1.98
0.02
Feb
1.75
1.83
-0.08
Mar
2.30
2.30
0.00
Apr
3.84
3.79
0.05
May
4.51
4.62
-0.11
Jun
4.44
4.37
0.07
Jul
4.00
3.96
0.04
Aug
4.01
3.87
0.14
Sep
3.18
3.22
-0.04
Oct
3.38
3.39
-0.01
Nov
2.59
2.47
0.12
Dec
2.12
2.07
0.05
38.12
37.87
0.25