Viewing Station: MI-WS-63 : Ann Arbor 3.4 WNW
May 30, 2022 - Sep 18, 2026244 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 3.22"
September 1-18, 2026(7 of 18 days covered by obs)
NOAA Normal
1.74"
Departure from Normal
1.48" : 185% of Normal
Year-To-Date: 12.54"
Jan 1 to Sep 18, 2026(44 of 261 days covered by obs)
NOAA Normal
24.85"
Departure from Normal
-12.31" : 50% of Normal
Water Year-To-Date: 13.86"
Oct 1, 2025 to Sep 18, 2026(47 of 353 days covered by obs)
NOAA Normal
32.15"
Departure from Normal
-18.29" : 43% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.10
2.63
-0.53
Feb
1.83
2.21
-0.38
Mar
2.25
2.47
-0.22
Apr
3.15
3.21
-0.06
May
3.72
3.71
0.01
Jun
3.56
3.59
-0.03
Jul
3.28
3.28
0.00
Aug
3.22
3.32
-0.10
Sep
2.90
2.94
-0.04
Oct
2.80
2.87
-0.07
Nov
2.48
2.65
-0.17
Dec
2.02
2.40
-0.38
33.31
35.28
-1.97