United States · 1991–2020 normal
Philadelphia in
January.
Typical January weather in Philadelphia: -1.4°C by day, -11.8°C at night, 93 mm of rain over 14.1 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high-1.4°C
Typical low-11.8°C
Rain93 mm
Wet days14.1
Comfort score 5 this month (June leads the year at 82). Daylight is calculated as 9 h 13 from latitude 44.15°.
Event window
Frost-level nights in January
The measured night-time normal is -11.8°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 5131095
- NOAA station
- USC00309000 · WATERTOWN
- Station distance
- 23.9 km from the place centre
- Coverage
- Strong coverage · 29 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.