Viewing Station: IL-MD-37 : Highland 1.0 E
Feb 27, 2018 - May 27, 20262,969 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 5.05"
May 1-27, 2026(27 of 27 days covered by obs)
NOAA Normal
4.33"
Departure from Normal
0.72" : 117% of Normal
Year-To-Date: 17.14"
Jan 1 to May 27, 2026(147 of 147 days covered by obs)
NOAA Normal
17.23"
Departure from Normal
-0.09" : 99% of Normal
Water Year-To-Date: 24.79"
Oct 1, 2025 to May 27, 2026(239 of 239 days covered by obs)
NOAA Normal
26.53"
Departure from Normal
-1.74" : 93% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.72
2.69
0.03
Feb
2.24
2.35
-0.11
Mar
3.25
3.35
-0.10
Apr
4.69
4.85
-0.16
May
4.97
4.97
0.00
Jun
4.38
4.62
-0.24
Jul
4.03
4.20
-0.17
Aug
3.33
3.65
-0.32
Sep
3.27
3.28
-0.01
Oct
3.14
3.25
-0.11
Nov
3.51
3.68
-0.17
Dec
2.65
2.78
-0.13
42.18
43.67
-1.49