Viewing Station: IL-CE-8 : Charleston 4.7 SSW
Sep 3, 2010 - May 27, 20264,120 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 5.02"
May 1-27, 2026(12 of 27 days covered by obs)
NOAA Normal
3.88"
Departure from Normal
1.14" : 130% of Normal
Year-To-Date: 20.32"
Jan 1 to May 27, 2026(132 of 147 days covered by obs)
NOAA Normal
16.23"
Departure from Normal
4.09" : 125% of Normal
Water Year-To-Date: 27.25"
Oct 1, 2025 to May 27, 2026(223 of 239 days covered by obs)
NOAA Normal
25.87"
Departure from Normal
1.38" : 105% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.59
2.79
-0.20
Feb
2.14
2.34
-0.20
Mar
2.98
3.08
-0.10
Apr
4.64
4.82
-0.18
May
4.45
4.50
-0.05
Jun
4.95
5.08
-0.13
Jul
4.17
4.25
-0.08
Aug
2.85
2.88
-0.03
Sep
3.04
2.99
0.05
Oct
3.59
3.63
-0.04
Nov
3.53
3.69
-0.16
Dec
2.52
2.70
-0.18
41.45
42.75
-1.30