Average Rainfall for Massachusetts in September





The tables below give monthly averages for rainfall during September at cities, communities and other locations in Massachusetts.

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 rainfall 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 each region of the state: Cape Cod and Islands, Eastern , Central and Western Massachusetts.

Cape Cod and Islands

Average monthly precipitation in September
Days Place Inches Milli­metres
9 Chatham 3.8 96
9 Edgartown 3.9 99
8 Hyannis 3.8 97
13 Nantucket 3.6 91
11 Vineyard Haven, Martha's Vineyard 3.8 96

Eastern Massachusetts

September averages for total rainfall
Days Place Inches Milli­metres
9 Boston 3.6 90
9 Brockton 4.1 104
9 East Wareham 4.5 115
10 Great Blue Hill, Milton 4.2 107
9 Haverhill 4.0 102
9 Hingham 3.9 99
8 Marblehead 3.6 90
10 New Bedford 4.2 107
9 Newburyport 3.9 99
10 Plymouth 4.3 108
10 Taunton 3.9 99

Central Massachusetts

Average amount of rain in September
Days Place Inches Milli­metres
9 Amherst 4.6 117
10 Barre Falls Reservoir Dam 4.4 111
10 Buffumville Lake 4.1 103
10 East Brimfield Lake 4.1 103
9 Lowell 3.9 99
10 Tully Lake 4.3 110
12 Westfield 4.6 117
10 Worcester 4.2 108

Western Massachusetts

Precipitation totals for September
Days Place Inches Milli­metres
12 North Adams 4.2 107
13 Pittsfield 4.5 114
11 Worthington 4.8 121
Reference

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

Massachusetts Precipitation
Back to Top