Viewing Station: MA-MD-186 : Watertown 1.1 NW
Mar 7, 2021 - May 11, 20261,714 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.98"
May 1-11, 2026(10 of 11 days covered by obs)
NOAA Normal
1.28"
Departure from Normal
-0.30" : 77% of Normal
Year-To-Date: 11.86"
Jan 1 to May 11, 2026(125 of 131 days covered by obs)
NOAA Normal
16.65"
Departure from Normal
-4.79" : 71% of Normal
Water Year-To-Date: 23.38"
Oct 1, 2025 to May 11, 2026(212 of 223 days covered by obs)
NOAA Normal
29.71"
Departure from Normal
-6.33" : 79% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.56
3.70
-0.14
Feb
3.36
3.39
-0.03
Mar
4.34
4.54
-0.20
Apr
4.11
4.24
-0.13
May
3.61
3.56
0.05
Jun
4.09
4.03
0.06
Jul
3.53
3.62
-0.09
Aug
3.60
3.65
-0.05
Sep
3.81
3.73
0.08
Oct
4.61
4.72
-0.11
Nov
3.86
3.90
-0.04
Dec
4.59
4.75
-0.16
47.07
47.83
-0.76