Viewing Station: IL-DP-16 : Aurora 3.6 SE
Feb 20, 2007 - Dec 15, 20256,852 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.67"
December 1-15, 2025(15 of 15 days covered by obs)
NOAA Normal
1.02"
Departure from Normal
-0.35" : 66% of Normal
Year-To-Date: 29.79"
Jan 1 to Dec 15, 2025(349 of 349 days covered by obs)
NOAA Normal
36.96"
Departure from Normal
-7.17" : 81% of Normal
Water Year-To-Date: 4.11"
Oct 1, 2025 to Dec 15, 2025(76 of 76 days covered by obs)
NOAA Normal
7.00"
Departure from Normal
-2.89" : 59% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.94
1.90
0.04
Feb
1.74
1.80
-0.06
Mar
2.28
2.26
0.02
Apr
3.85
3.75
0.10
May
4.58
4.62
-0.04
Jun
4.41
4.33
0.08
Jul
3.96
3.86
0.10
Aug
4.00
3.80
0.20
Sep
3.20
3.22
-0.02
Oct
3.41
3.38
0.03
Nov
2.57
2.45
0.12
Dec
2.11
2.04
0.07
38.05
37.41
0.64