Viewing Station: MA-SF-10 : Chelsea 0.8 N
Jun 21, 2015 - May 9, 20253,562 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.64"
May 1-9, 2025(9 of 9 days covered by obs)
NOAA Normal
1.03"
Departure from Normal
0.61" : 159% of Normal
Year-To-Date: 16.34"
Jan 1 to May 9, 2025(129 of 129 days covered by obs)
NOAA Normal
16.73"
Departure from Normal
-0.39" : 98% of Normal
Water Year-To-Date: 28.11"
Oct 1, 2024 to May 9, 2025(221 of 221 days covered by obs)
NOAA Normal
29.85"
Departure from Normal
-1.74" : 94% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.65
3.81
-0.16
Feb
3.45
3.50
-0.05
Mar
4.52
4.69
-0.17
Apr
4.08
4.30
-0.22
May
3.56
3.46
0.10
Jun
4.10
3.98
0.12
Jul
3.54
3.53
0.01
Aug
3.48
3.50
-0.02
Sep
3.73
3.61
0.12
Oct
4.54
4.81
-0.27
Nov
3.92
3.94
-0.02
Dec
4.66
4.84
-0.18
47.23
47.97
-0.74