Viewing Station: IL-ME-12 : Petersburg 0.2 W
Dec 29, 2016 - Dec 15, 20253,136 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.03"
December 1-15, 2025(15 of 15 days covered by obs)
NOAA Normal
1.00"
Departure from Normal
0.03" : 103% of Normal
Year-To-Date: 25.60"
Jan 1 to Dec 15, 2025(346 of 349 days covered by obs)
NOAA Normal
36.82"
Departure from Normal
-11.22" : 70% of Normal
Water Year-To-Date: 4.79"
Oct 1, 2025 to Dec 15, 2025(76 of 76 days covered by obs)
NOAA Normal
7.02"
Departure from Normal
-2.23" : 68% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.10
2.12
-0.02
Feb
1.86
1.81
0.05
Mar
2.55
2.57
-0.02
Apr
4.01
3.89
0.12
May
4.64
4.74
-0.10
Jun
4.28
4.07
0.21
Jul
3.72
3.82
-0.10
Aug
3.57
3.53
0.04
Sep
3.07
3.06
0.01
Oct
3.21
3.04
0.17
Nov
2.81
2.79
0.02
Dec
2.07
2.10
-0.03
37.89
37.54
0.35