Viewing Station: IL-LK-54 : Mundelein 0.5 NNE
Jul 8, 2010 - May 27, 20264,270 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.36"
May 1-27, 2026(21 of 27 days covered by obs)
NOAA Normal
3.67"
Departure from Normal
-2.31" : 37% of Normal
Year-To-Date: 12.27"
Jan 1 to May 27, 2026(127 of 147 days covered by obs)
NOAA Normal
13.31"
Departure from Normal
-1.04" : 92% of Normal
Water Year-To-Date: 16.37"
Oct 1, 2025 to May 27, 2026(207 of 239 days covered by obs)
NOAA Normal
20.96"
Departure from Normal
-4.59" : 78% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.84
1.90
-0.06
Feb
1.74
1.89
-0.15
Mar
2.24
2.31
-0.07
Apr
3.82
3.74
0.08
May
4.21
4.45
-0.24
Jun
4.49
4.37
0.12
Jul
3.74
3.73
0.01
Aug
3.79
3.70
0.09
Sep
3.42
3.44
-0.02
Oct
3.19
3.20
-0.01
Nov
2.45
2.40
0.05
Dec
2.01
2.07
-0.06
36.94
37.20
-0.26