Viewing Station: IL-EF-29 : Altamont 3.8 SSW
Apr 20, 2015 - Nov 20, 20251,156 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.57"
November 1-20, 2025(3 of 20 days covered by obs)
NOAA Normal
2.49"
Departure from Normal
-1.92" : 23% of Normal
Year-To-Date: 15.73"
Jan 1 to Nov 20, 2025(151 of 324 days covered by obs)
NOAA Normal
39.40"
Departure from Normal
-23.67" : 40% of Normal
Water Year-To-Date: 4.39"
Oct 1, 2025 to Nov 20, 2025(19 of 51 days covered by obs)
NOAA Normal
6.03"
Departure from Normal
-1.64" : 73% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.88
2.90
-0.02
Feb
2.36
2.39
-0.03
Mar
3.27
3.26
0.01
Apr
4.79
4.65
0.14
May
4.80
4.88
-0.08
Jun
4.79
4.81
-0.02
Jul
4.07
4.08
-0.01
Aug
3.35
3.23
0.12
Sep
3.06
3.14
-0.08
Oct
3.54
3.44
0.10
Nov
3.74
3.67
0.07
Dec
2.72
2.75
-0.03
43.37
43.20
0.17