Average Temperatures for Maine in May

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

The tables give the normals for maximum and minimum monthly temperatures based on weather data collected from 1971 to 2000.

You can jump to a separate table for Maine's Coast, Central Maine and Northern Maine.

Maine Coast

Average May temperatures
High °F Low °F Place High °C Low °C
65 45 Acadia National Park 18 7
63 42 Belfast 17 5
65 44 Brunswick 18 6
60 41 Eastport 16 5
64 42 Ellsworth 18 6
61 41 Jonesboro 16 5
61 42 Kennebunkport 16 6
65 44 Newcastle 18 7
58 44 Port Clyde 14 7
64 44 Portland 18 7

Central Maine

Average daily temperatures in May
High °F Low °F Place High °C Low °C
65 45 Augusta 18 7
65 42 Bangor 18 6
65 39 Dover-Foxcroft 18 4
60 38 Flagstaff Lake, Long Falls Dam 16 3
65 42 Grand Lake Stream 18 6
65 45 Lewiston 18 7
62 39 Lower Richardson Lake, Middle Dam 17 4
62 37 Rangeley 17 3
66 43 Waterville 19 6

Northern Maine

May temperatures: daily averages
High °F Low °F Place High °C Low °C
62 39 Chesuncook Lake, Ripogenus Dam 17 4
61 37 Fort Kent 16 3
64 41 Millinocket 18 5
61 38 Moosehead Lake, Brassua Dam 16 3
65 41 Presque Isle 18 5
Reference

National Climatic Data Center. NOAA's 1981-2010 Climate Normals.

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