Viewing Station: IL-LK-23 : Winthrop Harbor 0.2 SSE
Jun 27, 2007 - Sep 18, 20252,112 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.44"
September 1-18, 2025(18 of 18 days covered by obs)
NOAA Normal
2.02"
Departure from Normal
-0.58" : 71% of Normal
Year-To-Date: 18.39"
Jan 1 to Sep 18, 2025(195 of 261 days covered by obs)
NOAA Normal
26.39"
Departure from Normal
-8.00" : 70% of Normal
Water Year-To-Date: 23.73"
Oct 1, 2024 to Sep 18, 2025(229 of 353 days covered by obs)
NOAA Normal
33.87"
Departure from Normal
-10.14" : 70% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.75
1.91
-0.16
Feb
1.72
1.80
-0.08
Mar
2.23
2.35
-0.12
Apr
3.74
3.88
-0.14
May
3.99
4.13
-0.14
Jun
4.11
4.06
0.05
Jul
3.26
3.42
-0.16
Aug
3.57
3.49
0.08
Sep
3.36
3.45
-0.09
Oct
3.24
3.19
0.05
Nov
2.38
2.35
0.03
Dec
1.86
2.05
-0.19
35.21
36.08
-0.87