Average Temperatures for New Jersey in September





Average temperatures for September at cities, communities and other locations in New Jersey are listed below in degrees Fahrenheit and Celsius.

You can jump to a separate table for: North Jersey and South Jersey.

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.

North Jersey

Average September temperatures
High °F Low °F Place High °C Low °C
77 55 Easton 25 13
78 54 Hightstown 26 12
80 54 Lambertville 27 12
76 59 Long Branch 25 15
78 57 New Brunswick 26 14
78 61 Newark 25 16
79 58 Plainfield 26 14
77 53 Somerville 25 12
77 58 Trenton 25 14
76 56 Wanaque Reservoir Dam 24 13

South Jersey

Average daily temperatures in September
High °F Low °F Place High °C Low °C
74 65 Atlantic City Marina 23 18
77 63 Beach Haven, Brant Beach 25 17
80 58 Belleplain State Forest 27 14
78 59 Bridgeton 26 15
79 62 Cape May 26 17
79 60 Glassboro 26 15
79 57 Hammonton 26 14
78 57 Millville 26 14
80 59 Moorestown 26 15
77 53 Toms River 25 12
Reference

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

New Jersey Temperatures
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