Viewing Station: IL-SG-11 : Chatham 1.4 ESE
Jan 13, 2007 - Nov 30, 20255,670 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.95"
November 1-30, 2025(30 of 30 days covered by obs)
NOAA Normal
3.04"
Departure from Normal
-1.09" : 64% of Normal
Year-To-Date: 24.76"
Jan 1 to Nov 30, 2025(333 of 334 days covered by obs)
NOAA Normal
36.42"
Departure from Normal
-11.66" : 68% of Normal
Water Year-To-Date: 3.59"
Oct 1, 2025 to Nov 30, 2025(61 of 61 days covered by obs)
NOAA Normal
6.19"
Departure from Normal
-2.60" : 58% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.15
2.14
0.01
Feb
2.00
1.93
0.07
Mar
2.75
2.71
0.04
Apr
4.18
4.06
0.12
May
4.49
4.60
-0.11
Jun
4.38
4.41
-0.03
Jul
3.75
3.54
0.21
Aug
3.41
3.10
0.31
Sep
3.12
3.12
0.00
Oct
3.15
3.10
0.05
Nov
3.04
2.97
0.07
Dec
2.15
2.17
-0.02
38.57
37.85
0.72