Viewing Station: MI-WS-74 : Ann Arbor 5.4 SSW
Oct 7, 2024 - May 20, 2026477 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.45"
May 1-20, 2026(20 of 20 days covered by obs)
NOAA Normal
2.35"
Departure from Normal
-0.90" : 62% of Normal
Year-To-Date: 12.23"
Jan 1 to May 20, 2026(140 of 140 days covered by obs)
NOAA Normal
11.70"
Departure from Normal
0.53" : 105% of Normal
Water Year-To-Date: 17.41"
Oct 1, 2025 to May 20, 2026(232 of 232 days covered by obs)
NOAA Normal
18.86"
Departure from Normal
-1.45" : 92% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.06
2.54
-0.48
Feb
1.84
2.14
-0.30
Mar
2.25
2.45
-0.20
Apr
3.20
3.15
0.05
May
3.64
3.69
-0.05
Jun
3.45
3.53
-0.08
Jul
3.25
3.23
0.02
Aug
3.23
3.28
-0.05
Sep
2.86
2.92
-0.06
Oct
2.72
2.83
-0.11
Nov
2.46
2.66
-0.20
Dec
1.98
2.33
-0.35
32.94
34.75
-1.81