Average Annual Temperatures in New Hampshire

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Average annual temperatures for cities, towns, parks and lakes throughout New Hampshire are listed below in degrees Fahrenheit and Celsius.

The tables give the normals for maximum and minimum yearly temperatures based on weather data collected from 1981 to 2010.

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

Southern New Hampshire

Average annual temperatures
High °F Low °F Place High °C Low °C
58 35 Concord 14  2
59 37 Durham 15  3
57 33 Franklin Falls Reservoir Dam 14  1
58 34 Keene 15  1
57 37 Laconia & Lakeport 14  3
57 35 Lebanon 14  2
59 38 Massabesic Lake 15  3
55 37 Mount Sunapee 13  3
59 36 Nashua 15  2
59 37 Portsmouth & Greenland 15  3
57 33 Surry Mountain Lake 14  1

Northern New Hampshire

Average temperatures for the year
High °F Low °F Place High °C Low °C
54 31 Berlin 12  0
55 30 Bethlehem 13 -1
52 28 Colebrook 11 -2
49 26 First Connecticut Lake 10 -3
34 21 Mount Washington   1 -6
55 33 North Conway 13  1
51 31 Pinkham Notch 10 -1
55 31 Plymouth 13 -1
55 31 Tamworth 13 -1
Reference

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

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