United States · 1991–2020 normal
Harrisburg in
December.
Typical December weather in Harrisburg: 7.5°C by day, -2.3°C at night, 85 mm of rain over 7.2 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high7.5°C
Typical low-2.3°C
Rain85 mm
Wet days7.2
Comfort score 5 this month (May leads the year at 76). Daylight is calculated as 9 h 34 from latitude 37.74°.
Event window
Frost-level nights in December
The measured night-time normal is -2.3°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 4240284
- NOAA station
- USC00113879 · HARRISBURG
- Station distance
- 1.5 km from the place centre
- Coverage
- Good coverage · 19 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.