Average Temperatures for Massachusetts in May





Average temperatures for May at cities, towns and lakes throughout Massachusetts are listed below in degrees Fahrenheit and Celsius.

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

The tables give the normals for maximum and minimum temperatures based on weather data collected from 1991 to 2020 by the US National Centers for Environmental Information.

Cape Cod and Islands

Average May temperatures
High °F Low °F Place High °C Low °C
60 48 Chatham 15 9
65 49 Edgartown 18 9
63 48 Hyannis 17 9
61 47 Nantucket 16 8
65 46 Vineyard Haven, Martha's Vineyard 18 8

Eastern Massachusetts

Average daily temperatures in May
High °F Low °F Place High °C Low °C
67 50 Boston 19 10
70 47 Brockton 21 9
66 48 East Wareham 19 9
67 47 Great Blue Hill, Milton 20 9
68 45 Haverhill 20 7
69 48 Hingham 20 9
65 45 Marblehead 18 7
68 50 New Bedford 20 10
69 48 Plymouth 21 9
70 48 Taunton 21 9

Central Massachusetts

May temperatures: daily averages
High °F Low °F Place High °C Low °C
70 45 Amherst 21 7
70 43 Barre Falls Reservoir Dam 21 6
69 45 Buffumville Lake 20 7
68 46 East Brimfield Lake 20 8
70 45 Lowell 21 7
71 47 Tully Lake 22 9
72 46 Westfield 22 8
67 47 Worcester 19 8

Western Massachusetts

Average May temperatures
High °F Low °F Place High °C Low °C
69 43 Lenox Dale 20 6
69 44 North Adams 20 7
67 44 Pittsfield 19 7
67 43 Worthington 19 6
Reference

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

Massachusetts Temperatures
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