Viewing Station: WI-WK-42 : Oconomowoc 1.2 W
Jul 13, 2015 - Sep 15, 20262,309 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.37"
September 1-15, 2026(15 of 15 days covered by obs)
NOAA Normal
1.66"
Departure from Normal
-0.29" : 83% of Normal
Year-To-Date: 28.26"
Jan 1 to Sep 15, 2026(254 of 258 days covered by obs)
NOAA Normal
27.12"
Departure from Normal
1.14" : 104% of Normal
Water Year-To-Date: 32.62"
Oct 1, 2025 to Sep 15, 2026(344 of 350 days covered by obs)
NOAA Normal
33.85"
Departure from Normal
-1.23" : 96% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.57
1.60
-0.03
Feb
1.47
1.57
-0.10
Mar
1.96
2.02
-0.06
Apr
3.65
3.70
-0.05
May
4.04
4.07
-0.03
Jun
4.83
4.86
-0.03
Jul
3.99
4.02
-0.03
Aug
3.95
4.01
-0.06
Sep
3.32
3.31
0.01
Oct
2.79
2.83
-0.04
Nov
2.18
2.16
0.02
Dec
1.76
1.85
-0.09
35.51
36.00
-0.49