Average Precipitation for New Hampshire in September





The tables below give monthly averages for rainfall plus snowfall during September at cities, communities and other locations in New Hampshire.

Each place has a total for the amount of precipitation it usually receives this month. There is also a count of the number of days with wet weather, when precipitation amounts to 0.01 inches (0.25 millimetres) or more.

The precipitation totals are averages based on weather data collected from 1991 to 2020 for the US National Centers for Environmental Information.

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

Southern New Hampshire

Average monthly precipitation in September
Days Place Inches Milli­metres
9 Concord 3.6 92
10 Durham 4.0 102
10 Keene 4.3 108
10 Laconia & Lakeport 3.8 96
13 Lebanon 3.4 87
9 Massabesic Lake 3.9 98
10 Mount Sunapee 4.2 106
9 Nashua 4.1 103
9 Portsmouth & Greenland 4.1 104
11 Rochester 3.4 87

Northern New Hampshire

September averages for total rainfall plus snowfall
Days Place Inches Milli­metres
9 Berlin 3.4 85
11 Bethlehem 3.6 91
11 Colebrook 3.4 86
12 First Connecticut Lake 4.0 102
14 Mount Washington 7.7 195
11 North Conway 3.7 93
12 Pinkham Notch 5.0 127
12 Plymouth 3.6 90
10 Tamworth 4.3 110
Reference

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

New Hampshire Precipitation
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