Viewing Station: MI-WS-49 : Chelsea 2.4 S
Apr 24, 2018 - Sep 11, 20251,813 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.35"
September 1-16, 2025(11 of 16 days covered by obs)
NOAA Normal
1.51"
Departure from Normal
-1.16" : 23% of Normal
Year-To-Date: 24.43"
Jan 1 to Sep 16, 2025(254 of 259 days covered by obs)
NOAA Normal
25.06"
Departure from Normal
-0.63" : 97% of Normal
Water Year-To-Date: 30.38"
Oct 1, 2024 to Sep 16, 2025(345 of 351 days covered by obs)
NOAA Normal
32.52"
Departure from Normal
-2.14" : 93% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.17
2.35
-0.18
Feb
1.81
1.88
-0.07
Mar
2.25
2.28
-0.03
Apr
3.15
3.09
0.06
May
3.82
3.88
-0.06
Jun
3.69
3.57
0.12
Jul
3.34
3.30
0.04
Aug
3.32
3.38
-0.06
Sep
2.83
2.85
-0.02
Oct
2.90
3.01
-0.11
Nov
2.55
2.58
-0.03
Dec
2.01
2.14
-0.13
33.84
34.31
-0.47