Viewing Station: IL-LK-23 : Winthrop Harbor 0.2 SSE
Jun 27, 2007 - Sep 20, 20262,427 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 5.12"
September 1-23, 2026(19 of 23 days covered by obs)
NOAA Normal
2.58"
Departure from Normal
2.54" : 199% of Normal
Year-To-Date: 38.82"
Jan 1 to Sep 23, 2026(212 of 266 days covered by obs)
NOAA Normal
26.95"
Departure from Normal
11.87" : 144% of Normal
Water Year-To-Date: 43.85"
Oct 1, 2025 to Sep 23, 2026(303 of 358 days covered by obs)
NOAA Normal
34.43"
Departure from Normal
9.42" : 127% 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