Viewing Station: IL-ME-12 : Petersburg 0.2 W
Dec 29, 2016 - May 27, 20263,299 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.91"
May 1-27, 2026(27 of 27 days covered by obs)
NOAA Normal
4.04"
Departure from Normal
-2.13" : 47% of Normal
Year-To-Date: 17.93"
Jan 1 to May 27, 2026(147 of 147 days covered by obs)
NOAA Normal
14.56"
Departure from Normal
3.37" : 123% of Normal
Water Year-To-Date: 22.95"
Oct 1, 2025 to May 27, 2026(239 of 239 days covered by obs)
NOAA Normal
22.65"
Departure from Normal
0.30" : 101% 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