Viewing Station: MA-MD-228 : Groton 4.2 WNW
Apr 6, 2023 - Aug 31, 2025827 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.16"
August 1-31, 2025(28 of 31 days covered by obs)
NOAA Normal
3.70"
Departure from Normal
-1.54" : 58% of Normal
Year-To-Date: 26.26"
Jan 1 to Aug 31, 2025(226 of 243 days covered by obs)
NOAA Normal
30.22"
Departure from Normal
-3.96" : 87% of Normal
Water Year-To-Date: 34.01"
Oct 1, 2024 to Aug 31, 2025(316 of 335 days covered by obs)
NOAA Normal
43.23"
Departure from Normal
-9.22" : 79% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.39
3.39
0.00
Feb
3.28
3.25
0.03
Mar
4.13
4.16
-0.03
Apr
4.20
3.96
0.24
May
3.66
3.47
0.19
Jun
4.19
4.09
0.10
Jul
3.67
3.65
0.02
Aug
3.70
3.68
0.02
Sep
4.02
3.77
0.25
Oct
4.83
4.73
0.10
Nov
3.84
3.65
0.19
Dec
4.34
4.45
-0.11
47.25
46.25
1.00