Philadelphia Weather in December
United States · 30-year monthly averages
⚠️ Challenging time to visit
December in Philadelphia is cold, with average daytime highs around 8°C (46°F) and nighttime lows near 0°C (31°F). Expect roughly 101mm of precipitation spread over about 9 rainy days, with a moderate amount of rain.
Avg high
8°C
46°F
Avg low
0°C
31°F
Rainfall
101mm
moderate
Rainy days
9
days with ≥1mm
🎒 What to pack
- warm coat
- sweaters and layers
- scarf
December vs the rest of the year
FAQ
- How hot is Philadelphia in December?
- December in Philadelphia is cold, with average daytime highs around 8°C (46°F) and nighttime lows near 0°C (31°F). Expect roughly 101mm of precipitation spread over about 9 rainy days, with a moderate amount of rain.
- Does it rain a lot in Philadelphia in December?
- Philadelphia sees around 101mm of precipitation in December on average — moderate by global standards.
- Is December a good time to visit Philadelphia?
- December is a challenging month to visit Philadelphia weather-wise — plan around the conditions.