Viewing Station: MI-WS-81 : Ann Arbor 1.9 W
Apr 1, 2025 - Aug 18, 2026450 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.41"
August 1-18, 2026(17 of 18 days covered by obs)
NOAA Normal
1.86"
Departure from Normal
-0.45" : 76% of Normal
Year-To-Date: 22.89"
Jan 1 to Aug 18, 2026(226 of 230 days covered by obs)
NOAA Normal
21.69"
Departure from Normal
1.20" : 106% of Normal
Water Year-To-Date: 29.56"
Oct 1, 2025 to Aug 18, 2026(318 of 322 days covered by obs)
NOAA Normal
28.95"
Departure from Normal
0.61" : 102% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.10
2.66
-0.56
Feb
1.84
2.23
-0.39
Mar
2.25
2.51
-0.26
Apr
3.14
3.23
-0.09
May
3.70
3.69
0.01
Jun
3.54
3.58
-0.04
Jul
3.26
3.28
-0.02
Aug
3.21
3.32
-0.11
Sep
2.92
2.94
-0.02
Oct
2.78
2.87
-0.09
Nov
2.46
2.67
-0.21
Dec
2.02
2.44
-0.42
33.22
35.42
-2.20