Viewing Station: IL-JF-10 : Mount Vernon 5.2 SSW
Nov 1, 2018 - Dec 15, 20252,451 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.16"
December 1-15, 2025(15 of 15 days covered by obs)
NOAA Normal
1.46"
Departure from Normal
-1.30" : 11% of Normal
Year-To-Date: 43.19"
Jan 1 to Dec 15, 2025(349 of 349 days covered by obs)
NOAA Normal
43.66"
Departure from Normal
-0.47" : 99% of Normal
Water Year-To-Date: 6.21"
Oct 1, 2025 to Dec 15, 2025(76 of 76 days covered by obs)
NOAA Normal
8.85"
Departure from Normal
-2.64" : 70% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.06
2.95
0.11
Feb
2.62
2.64
-0.02
Mar
3.94
3.81
0.13
Apr
4.86
4.94
-0.08
May
5.13
4.96
0.17
Jun
4.63
4.59
0.04
Jul
3.99
3.90
0.09
Aug
3.40
3.23
0.17
Sep
3.18
3.19
-0.01
Oct
3.41
3.33
0.08
Nov
3.98
3.91
0.07
Dec
3.01
3.01
0.00
45.21
44.46
0.75