Viewing Station: MI-WS-41 : Ann Arbor 7.1 W
May 13, 2016 - Aug 18, 20263,491 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.30"
August 1-18, 2026(18 of 18 days covered by obs)
NOAA Normal
1.87"
Departure from Normal
-0.57" : 70% of Normal
Year-To-Date: 23.15"
Jan 1 to Aug 18, 2026(215 of 230 days covered by obs)
NOAA Normal
21.73"
Departure from Normal
1.42" : 107% of Normal
Water Year-To-Date: 28.75"
Oct 1, 2025 to Aug 18, 2026(306 of 322 days covered by obs)
NOAA Normal
29.03"
Departure from Normal
-0.28" : 99% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.11
2.53
-0.42
Feb
1.81
2.10
-0.29
Mar
2.25
2.36
-0.11
Apr
3.14
3.14
0.00
May
3.72
3.76
-0.04
Jun
3.56
3.56
0.00
Jul
3.27
3.25
0.02
Aug
3.22
3.33
-0.11
Sep
2.87
2.91
-0.04
Oct
2.81
2.89
-0.08
Nov
2.48
2.63
-0.15
Dec
2.01
2.26
-0.25
33.25
34.72
-1.47