Typical Weather

Weather in Philadelphia in December

How warm is it in Philadelphia in December?

In December the typical daytime high in Philadelphia is 8.0 °C on average, from 10.3 °C at the start to 6.6 °C at the end of the month.

That is 5.6 °C cooler than in November and 2.2 °C warmer than in January.

The last 10 years were 1.7 °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 Dover (94 km), Newark Liberty Intl Ap (117 km) and Ny City Cntrl Park (137 km); nearer ones count more.