Average temperatures, rainfall and packing tips for Philadelphia, United States in December
December in Philadelphia is typically cool, with average daytime highs around 7°C and nights near 0°C. It is one of the cooler months of Philadelphia's year.
December is one of the wetter months in Philadelphia, with around 93 mm of rain - plan around showers.
If your dates are flexible, the most comfortable months in Philadelphia are usually May, August, September and October.
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In December, Philadelphia averages a daytime high of about 7°C and a night-time low of around 0°C, based on recent historical data.
December is one of the wetter months in Philadelphia, with around 93 mm of rain - plan around showers.
December is a workable time to visit Philadelphia, with cool days - just pack accordingly. If your dates are flexible, the most comfortable months in Philadelphia are usually May, August, September and October.