Viewing Station: IL-MCL-63 : Normal 1.7 SE
Apr 15, 2021 - May 27, 20261,598 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 4.09"
May 1-27, 2026(27 of 27 days covered by obs)
NOAA Normal
3.91"
Departure from Normal
0.18" : 105% of Normal
Year-To-Date: 12.83"
Jan 1 to May 27, 2026(146 of 147 days covered by obs)
NOAA Normal
14.17"
Departure from Normal
-1.34" : 91% of Normal
Water Year-To-Date: 17.60"
Oct 1, 2025 to May 27, 2026(234 of 239 days covered by obs)
NOAA Normal
22.40"
Departure from Normal
-4.80" : 79% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.09
2.26
-0.17
Feb
1.82
1.94
-0.12
Mar
2.57
2.63
-0.06
Apr
3.78
3.72
0.06
May
4.49
4.50
-0.01
Jun
4.01
4.01
0.00
Jul
4.10
3.91
0.19
Aug
3.60
3.60
0.00
Sep
3.03
3.26
-0.23
Oct
3.25
3.27
-0.02
Nov
2.82
2.74
0.08
Dec
2.16
2.28
-0.12
37.72
38.12
-0.40