Weather in Trenton in September
How warm is it in Trenton in September?
In September the typical daytime high in Trenton is 25.5 °C on average, from 28.0 °C at the start to 22.5 °C at the end of the month.
That is 3.7 °C cooler than in August and 6.0 °C warmer than in October.
The last 10 years were 1.3 °C warmer than more than 40 years ago.
Click a day for more: afternoon and night, the usual range, records and how fast it is warming.
The average of the weather stations Newark Liberty Intl Ap (71 km), Ny City Cntrl Park (90 km) and Dover (136 km); nearer ones count more.