Viewing Station: IL-MCH-83 : Crystal Lake 1.0 WSW
Mar 7, 2017 - May 27, 20263,163 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.45"
May 1-27, 2026(27 of 27 days covered by obs)
NOAA Normal
3.96"
Departure from Normal
-2.51" : 37% of Normal
Year-To-Date: 14.65"
Jan 1 to May 27, 2026(146 of 147 days covered by obs)
NOAA Normal
13.43"
Departure from Normal
1.22" : 109% of Normal
Water Year-To-Date: 21.17"
Oct 1, 2025 to May 27, 2026(238 of 239 days covered by obs)
NOAA Normal
21.00"
Departure from Normal
0.17" : 101% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.75
1.81
-0.06
Feb
1.75
1.82
-0.07
Mar
2.22
2.20
0.02
Apr
3.75
3.68
0.07
May
4.55
4.75
-0.20
Jun
4.66
4.79
-0.13
Jul
3.96
3.94
0.02
Aug
3.82
3.89
-0.07
Sep
3.49
3.52
-0.03
Oct
3.14
3.16
-0.02
Nov
2.41
2.42
-0.01
Dec
2.02
2.03
-0.01
37.52
38.01
-0.49