Viewing Station: IL-ME-12 : Petersburg 0.2 W
Dec 29, 2016 - Aug 19, 20263,377 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 4.52"
August 1-19, 2026(18 of 19 days covered by obs)
NOAA Normal
2.19"
Departure from Normal
2.33" : 207% of Normal
Year-To-Date: 32.74"
Jan 1 to Aug 19, 2026(230 of 231 days covered by obs)
NOAA Normal
25.35"
Departure from Normal
7.39" : 129% of Normal
Water Year-To-Date: 37.76"
Oct 1, 2025 to Aug 19, 2026(322 of 323 days covered by obs)
NOAA Normal
33.44"
Departure from Normal
4.32" : 113% 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