Viewing Station: IL-WL-166 : Naperville 3.6 SE
Jul 1, 2020 - Apr 24, 20261,859 Total Observations
View:

Climatology

Precipitation Normals Comparison

Month-To-Date: 4.63"
April 1-24, 2026(24 of 24 days covered by obs)
NOAA Normal
3.11"
Departure from Normal
1.52" : 149% of Normal
Year-To-Date: 11.60"
Jan 1 to Apr 24, 2026(113 of 114 days covered by obs)
NOAA Normal
9.31"
Departure from Normal
2.29" : 125% of Normal
Water Year-To-Date: 18.59"
Oct 1, 2025 to Apr 24, 2026(205 of 206 days covered by obs)
NOAA Normal
17.56"
Departure from Normal
1.03" : 106% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.02
2.06
-0.04
Feb
1.81
1.91
-0.10
Mar
2.37
2.35
0.02
Apr
3.89
3.86
0.03
May
4.56
4.67
-0.11
Jun
4.45
4.43
0.02
Jul
3.88
3.96
-0.08
Aug
4.07
3.95
0.12
Sep
3.25
3.23
0.02
Oct
3.48
3.47
0.01
Nov
2.61
2.55
0.06
Dec
2.16
2.14
0.02
38.55
38.58
-0.03