Average Precipitation for Massachusetts in May





The tables below give monthly averages for rainfall plus snowfall during May at cities, communities and other locations in Massachusetts.

Each place has a total for the amount of precipitation it usually receives this month. There is also a count of the number of days with wet weather, when precipitation amounts to 0.01 inches (0.25 millimetres) or more.

The precipitation totals are averages based on weather data collected from 1991 to 2020 for the US National Centers for Environmental Information.

You can jump to a separate table for each region of the state: Cape Cod and Islands, Eastern , Central and Western Massachusetts.

Cape Cod and Islands

Average monthly precipitation in May
Days Place Inches Milli­metres
11 Chatham 3.3 84
12 Edgartown 3.7 95
10 Hyannis 3.4 87
12 Nantucket 3.0 76
12 Vineyard Haven, Martha's Vineyard 3.3 83

Eastern Massachusetts

May averages for total rainfall plus snowfall
Days Place Inches Milli­metres
12 Boston 3.3 83
13 Brockton 3.4 87
12 East Wareham 3.8 97
14 Great Blue Hill, Milton 3.8 97
13 Haverhill 4.1 104
13 Hingham 3.8 96
11 Marblehead 3.5 88
11 New Bedford 3.7 95
12 Newburyport 4.1 104
13 Plymouth 3.7 94
11 Taunton 3.4 86

Central Massachusetts

Average amount of rain and snow in May
Days Place Inches Milli­metres
13 Amherst 3.7 94
14 Barre Falls Reservoir Dam 3.7 93
13 Buffumville Lake 3.6 91
14 East Brimfield Lake 3.5 88
13 Lowell 3.8 97
13 Tully Lake 3.5 89
13 Westfield 3.7 94
13 Worcester 3.6 90

Western Massachusetts

Precipitation totals for May
Days Place Inches Milli­metres
14 North Adams 3.7 95
14 Pittsfield 3.8 96
15 Worthington 4.2 107
Reference

NOAA National Centers for Environmental Information (NCEI). Climate Normals.

Massachusetts Precipitation
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