Weather in Philadelphia in December
December in Philadelphia is a coat month. Treat it as cities, food and short walks, not as a terrace holiday.
In United States, this is how Philadelphia actually wears December, not how a country centroid would. Compared with July and January, December sits in the middle of Philadelphia's year.
Pack for Philadelphia in December, not for a brochure that was photographed in another season.
- Average temp
- 4°C
0–8°C
- Rainfall
- 101 mm
Showers likely
- Sunshine
- 4.8 h
hours per day
- Wind
- 16 km/h
What to expect
Daytime
You want a proper coat in Philadelphia in December, not a festival jacket. Wind makes the same afternoon feel sharper than the map suggests.
Outdoor time is the middle of the day. Finish plans before the light goes. Evenings are for indoors.
Rain
Mixed skies in Philadelphia in December. Dry days and wet days share the month. Outdoor plans need a backup, not a cancellation policy.
Pack a shell you will actually carry. The monthly table is the place for totals. This is the feel: usable, interrupted.
Evening
Evenings are cooler. A layer helps after sunset.
What to pack
Rain jacket
A layer for cooler evenings
Where to stay in Philadelphia
Dates are a starting point for December.
Travel guides for Philadelphia
What to read before you book.
Average weather in Philadelphia
TemperatureRainfall
Similar weather in December
Other destinations whose December averages sit close to this one.
Check another month
This is the month you are reading. Change either side to look at another.
FAQs about Philadelphia
Climate averages for Philadelphia, 1991–2020.
The best time to visit Philadelphia is between May and October, the most comfortable stretch of the year on these averages.
July is the hottest month, with an average around 26°C.
September is the wettest month, with about 112 mm of rain.
No. These are 1991–2020 climate normals from Meteostat, not a live forecast. Actual weather in any given week can differ.
