Viewing Station: MI-WS-11 : Ann Arbor 2.1 WNW
Aug 17, 2008 - Aug 18, 20266,484 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.27"
August 1-18, 2026(18 of 18 days covered by obs)
NOAA Normal
1.86"
Departure from Normal
-0.59" : 68% of Normal
Year-To-Date: 23.33"
Jan 1 to Aug 18, 2026(222 of 230 days covered by obs)
NOAA Normal
21.69"
Departure from Normal
1.64" : 108% of Normal
Water Year-To-Date: 30.01"
Oct 1, 2025 to Aug 18, 2026(314 of 322 days covered by obs)
NOAA Normal
28.95"
Departure from Normal
1.06" : 104% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.10
2.65
-0.55
Feb
1.84
2.22
-0.38
Mar
2.25
2.49
-0.24
Apr
3.14
3.23
-0.09
May
3.70
3.70
0.00
Jun
3.54
3.59
-0.05
Jul
3.26
3.29
-0.03
Aug
3.21
3.32
-0.11
Sep
2.92
2.94
-0.02
Oct
2.78
2.87
-0.09
Nov
2.46
2.66
-0.20
Dec
2.02
2.43
-0.41
33.22
35.39
-2.17