United States · 1991–2020 normal
Rock Hall in
December.
Typical December weather in Rock Hall: 7.9°C by day, -1.9°C at night, 92 mm of rain over 8.3 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high7.9°C
Typical low-1.9°C
Rain92 mm
Wet days8.3
Comfort score 5 this month (May leads the year at 81). Daylight is calculated as 9 h 26 from latitude 39.14°. Open-water sea temperature is 6.8°C (12 km from the place centre).
Event window
Frost-level nights in December
The measured night-time normal is -1.9°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 4367081
- NOAA station
- USC00181750 · CHESTERTOWN
- Station distance
- 18 km from the place centre
- Coverage
- Good coverage · 20 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.