Philadelphia Weather in January
4.7°C high · -4.3°C low · 89 mm rain · 2.8h sun
Jan is a cool month in Philadelphia — not peak season, but a good time to avoid crowds.
January at a glance
| Metric | Value |
|---|---|
| Average high | 4.7°C |
| Average low | -4.3°C |
| Rainfall | 89 mm |
| Sunshine | 2.8 hours/day |
| Daylight | 9.5 hours |
What to pack in January
Pack a warm coat and layers for Philadelphia in January.
Philadelphia weather by month
JanFebMarAprMayJunJulAugSepOctNovDec
Frequently asked questions
What is the weather in Philadelphia in January?
Highs of 4.7°C and lows of -4.3°C, with about 89 mm of rain and 2.8 hours of sunshine per day.
Is January a good time to visit Philadelphia?
Jan 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.