Average Temperatures for New Hampshire in May





Average temperatures for May at cities, communities and other locations around around New Hampshire are listed below in degrees Fahrenheit and Celsius.

You can jump to a separate table for Southern and Northern New Hampshire.

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.

Southern New Hampshire

Average May temperatures
High °F Low °F Place High °C Low °C
69 44 Concord 21 7
68 44 Durham 20 7
68 43 Franklin Falls Reservoir Dam 20 6
69 41 Keene 20 5
68 45 Laconia & Lakeport 20 7
70 44 Lebanon 21 7
67 46 Massabesic Lake 20 8
66 44 Mount Sunapee 19 7
70 46 Nashua 21 8
66 45 Portsmouth & Greenland 19 7
67 45 Rochester 20 7

Northern New Hampshire

Average daily temperatures in May
High °F Low °F Place High °C Low °C
66 41 Berlin 19 5
67 39 Bethlehem 20 4
64 37 Colebrook 18 3
62 38 First Connecticut Lake 16 4
43 30 Mount Washington 6 -1
68 43 North Conway 20 6
62 39 Pinkham Notch 17 4
67 39 Plymouth 19 4
66 40 Tamworth 19 5
Reference

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

New Hampshire Temperatures
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