Viewing Station: IL-LK-16 : Buffalo Grove 1.5 N
Feb 11, 2007 - Sep 18, 20256,701 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.68"
September 1-18, 2025(18 of 18 days covered by obs)
NOAA Normal
2.00"
Departure from Normal
-0.32" : 84% of Normal
Year-To-Date: 20.06"
Jan 1 to Sep 18, 2025(261 of 261 days covered by obs)
NOAA Normal
28.06"
Departure from Normal
-8.00" : 71% of Normal
Water Year-To-Date: 26.04"
Oct 1, 2024 to Sep 18, 2025(353 of 353 days covered by obs)
NOAA Normal
35.75"
Departure from Normal
-9.71" : 73% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.85
1.93
-0.08
Feb
1.76
1.89
-0.13
Mar
2.24
2.27
-0.03
Apr
3.76
3.70
0.06
May
4.32
4.46
-0.14
Jun
4.51
4.29
0.22
Jul
3.80
3.66
0.14
Aug
3.82
3.80
0.02
Sep
3.34
3.33
0.01
Oct
3.18
3.24
-0.06
Nov
2.44
2.37
0.07
Dec
2.07
2.07
0.00
37.09
37.01
0.08