United States · 1991–2020 normal
Mechanicsburg in
December.
Typical December weather in Mechanicsburg: 3.9°C by day, -4°C at night, 83 mm of rain over 9.1 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high3.9°C
Typical low-4°C
Rain83 mm
Wet days9.1
Comfort score 5 this month (September leads the year at 81). Daylight is calculated as 9 h 20 from latitude 40.07°.
Event window
Frost-level nights in December
The measured night-time normal is -4°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 5162494
- NOAA station
- USC00338552 · URBANA WRF
- Station distance
- 19.5 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.