Average May Temperatures for Massachusetts

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

Average Temperatures for Massachusetts in May

Cape Cod and Islands

Eastern Massachusetts

Central Massachusetts

Western Massachusetts

Reference

More Massachusetts Weather Information