Philadelphia Weather in December
7.6°C high · -1.6°C low · 89 mm rain · 2.5h sun
Dec is a cool month in Philadelphia — not peak season, but a good time to avoid crowds.
December at a glance
| Metric | Value |
|---|---|
| Average high | 7.6°C |
| Average low | -1.6°C |
| Rainfall | 89 mm |
| Sunshine | 2.5 hours/day |
| Daylight | 9.2 hours |
What to pack in December
Pack a warm coat and layers for Philadelphia in December.
Philadelphia weather by month
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Frequently asked questions
What is the weather in Philadelphia in December?
Highs of 7.6°C and lows of -1.6°C, with about 89 mm of rain and 2.5 hours of sunshine per day.
Is December a good time to visit Philadelphia?
Dec is a cool month in Philadelphia — not peak season, but a good time to avoid crowds.
What to do in Philadelphia · Best time to visit Philadelphia
Climate data: Open-Meteo Historical (ERA5), 1991–2020. CC BY 4.0.