Viewing Station: IL-CK-407 : Matteson 0.9 E
Sep 30, 2022 - May 27, 2026735 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.07"
May 1-27, 2026(7 of 27 days covered by obs)
NOAA Normal
3.85"
Departure from Normal
-3.78" : 2% of Normal
Year-To-Date: 11.04"
Jan 1 to May 27, 2026(67 of 147 days covered by obs)
NOAA Normal
14.25"
Departure from Normal
-3.21" : 77% of Normal
Water Year-To-Date: 17.22"
Oct 1, 2025 to May 27, 2026(116 of 239 days covered by obs)
NOAA Normal
22.53"
Departure from Normal
-5.31" : 76% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.24
2.26
-0.02
Feb
1.94
2.01
-0.07
Mar
2.43
2.43
0.00
Apr
3.79
3.80
-0.01
May
4.42
4.55
-0.13
Jun
4.50
4.60
-0.10
Jul
4.28
4.44
-0.16
Aug
3.99
4.04
-0.05
Sep
3.41
3.33
0.08
Oct
3.40
3.49
-0.09
Nov
2.68
2.76
-0.08
Dec
2.20
2.26
-0.06
39.28
39.97
-0.69