Viewing Station: MA-SF-38 : Boston 3.1 SW
Nov 27, 2023 - May 31, 2025521 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 6.96"
May 1-31, 2025(31 of 31 days covered by obs)
NOAA Normal
3.61"
Departure from Normal
3.35" : 193% of Normal
Year-To-Date: 19.48"
Jan 1 to May 31, 2025(150 of 151 days covered by obs)
NOAA Normal
19.73"
Departure from Normal
-0.25" : 99% of Normal
Water Year-To-Date: 30.37"
Oct 1, 2024 to May 31, 2025(242 of 243 days covered by obs)
NOAA Normal
33.27"
Departure from Normal
-2.90" : 91% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.76
3.84
-0.08
Feb
3.51
3.45
0.06
Mar
4.67
4.68
-0.01
Apr
4.18
4.31
-0.13
May
3.61
3.63
-0.02
Jun
4.12
4.08
0.04
Jul
3.47
3.52
-0.05
Aug
3.60
3.64
-0.04
Sep
3.85
3.82
0.03
Oct
4.78
4.80
-0.02
Nov
3.99
3.98
0.01
Dec
4.77
4.86
-0.09
48.31
48.61
-0.30