Viewing Station: IL-WL-154 : Naperville 2.9 SSE
Apr 12, 2019 - Jan 22, 20261,577 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.01"
January 1-22, 2026(21 of 22 days covered by obs)
NOAA Normal
1.41"
Departure from Normal
0.60" : 143% of Normal
Year-To-Date: 2.01"
Jan 1 to Jan 22, 2026(21 of 22 days covered by obs)
NOAA Normal
1.41"
Departure from Normal
0.60" : 143% of Normal
Water Year-To-Date: 8.15"
Oct 1, 2025 to Jan 22, 2026(113 of 114 days covered by obs)
NOAA Normal
9.58"
Departure from Normal
-1.43" : 85% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.98
2.02
-0.04
Feb
1.78
1.88
-0.10
Mar
2.31
2.33
-0.02
Apr
3.86
3.83
0.03
May
4.53
4.66
-0.13
Jun
4.42
4.40
0.02
Jul
3.90
3.95
-0.05
Aug
4.05
3.91
0.14
Sep
3.20
3.22
-0.02
Oct
3.43
3.44
-0.01
Nov
2.60
2.52
0.08
Dec
2.14
2.11
0.03
38.20
38.27
-0.07