United States · 1991–2020 normal
Charlestown in
December.
Typical December weather in Charlestown: 7.7°C by day, -1.8°C at night, 106 mm of rain over 8.5 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high7.7°C
Typical low-1.8°C
Rain106 mm
Wet days8.5
Comfort score 5 this month (May leads the year at 78). Daylight is calculated as 9 h 23 from latitude 39.57°.
Event window
Frost-level nights in December
The measured night-time normal is -1.8°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 4351038
- NOAA station
- USC00182060 · CONOWINGO DAM
- Station distance
- 19.4 km from the place centre
- Coverage
- Strong coverage · 26 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.