Viewing Station: IL-WL-137 : Naperville 2.8 SSW
May 8, 2017 - Mar 14, 20263,011 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.27"
March 1-14, 2026(14 of 14 days covered by obs)
NOAA Normal
1.04"
Departure from Normal
1.23" : 219% of Normal
Year-To-Date: 4.75"
Jan 1 to Mar 14, 2026(73 of 73 days covered by obs)
NOAA Normal
4.77"
Departure from Normal
-0.02" : 100% of Normal
Water Year-To-Date: 10.96"
Oct 1, 2025 to Mar 14, 2026(164 of 165 days covered by obs)
NOAA Normal
12.93"
Departure from Normal
-1.97" : 85% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.97
1.96
0.01
Feb
1.76
1.83
-0.07
Mar
2.30
2.29
0.01
Apr
3.86
3.78
0.08
May
4.55
4.63
-0.08
Jun
4.43
4.36
0.07
Jul
3.93
3.93
0.00
Aug
4.01
3.86
0.15
Sep
3.20
3.21
-0.01
Oct
3.44
3.40
0.04
Nov
2.59
2.47
0.12
Dec
2.13
2.06
0.07
38.17
37.78
0.39