Viewing Station: MA-MD-134 : Somerville 0.5 SSE
Oct 1, 2018 - May 11, 20262,274 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.02"
May 1-11, 2026(11 of 11 days covered by obs)
NOAA Normal
1.27"
Departure from Normal
-0.25" : 80% of Normal
Year-To-Date: 10.41"
Jan 1 to May 11, 2026(131 of 131 days covered by obs)
NOAA Normal
16.77"
Departure from Normal
-6.36" : 62% of Normal
Water Year-To-Date: 20.74"
Oct 1, 2025 to May 11, 2026(223 of 223 days covered by obs)
NOAA Normal
29.79"
Departure from Normal
-9.05" : 70% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.60
3.80
-0.20
Feb
3.41
3.47
-0.06
Mar
4.42
4.67
-0.25
Apr
4.07
4.29
-0.22
May
3.59
3.55
0.04
Jun
4.10
4.00
0.10
Jul
3.51
3.62
-0.11
Aug
3.56
3.59
-0.03
Sep
3.77
3.71
0.06
Oct
4.54
4.78
-0.24
Nov
3.86
3.93
-0.07
Dec
4.62
4.85
-0.23
47.05
48.26
-1.21