Viewing Station: IL-PT-1 : Monticello 3.5 NNE
Dec 14, 2007 - Sep 4, 20255,471 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.45"
September 1-16, 2025(1 of 16 days covered by obs)
NOAA Normal
1.73"
Departure from Normal
-1.28" : 26% of Normal
Year-To-Date: 7.59"
Jan 1 to Sep 16, 2025(75 of 259 days covered by obs)
NOAA Normal
29.04"
Departure from Normal
-21.45" : 26% of Normal
Water Year-To-Date: 16.01"
Oct 1, 2024 to Sep 16, 2025(137 of 351 days covered by obs)
NOAA Normal
37.68"
Departure from Normal
-21.67" : 42% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.25
2.28
-0.03
Feb
1.97
2.01
-0.04
Mar
2.48
2.72
-0.24
Apr
4.03
3.90
0.13
May
4.54
4.52
0.02
Jun
4.62
4.49
0.13
Jul
4.15
4.07
0.08
Aug
3.27
3.17
0.10
Sep
3.24
3.05
0.19
Oct
3.25
3.20
0.05
Nov
3.09
3.00
0.09
Dec
2.30
2.33
-0.03
39.19
38.74
0.45