Viewing Station: IL-DP-174 : Bolingbrook 2.6 NE
Apr 15, 2021 - Jul 21, 20261,234 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 6.52"
July 1-21, 2026(21 of 21 days covered by obs)
NOAA Normal
2.64"
Departure from Normal
3.88" : 247% of Normal
Year-To-Date: 25.24"
Jan 1 to Jul 21, 2026(147 of 202 days covered by obs)
NOAA Normal
21.81"
Departure from Normal
3.43" : 116% of Normal
Water Year-To-Date: 27.96"
Oct 1, 2025 to Jul 21, 2026(177 of 294 days covered by obs)
NOAA Normal
30.11"
Departure from Normal
-2.15" : 93% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.04
2.12
-0.08
Feb
1.84
1.96
-0.12
Mar
2.38
2.37
0.01
Apr
3.90
3.90
0.00
May
4.56
4.70
-0.14
Jun
4.45
4.45
0.00
Jul
3.89
3.96
-0.07
Aug
4.11
4.00
0.11
Sep
3.28
3.24
0.04
Oct
3.50
3.52
-0.02
Nov
2.62
2.60
0.02
Dec
2.18
2.19
-0.01
38.75
39.01
-0.26