United States · 1991–2020 normal

Unionville in
December.

Typical December weather in Unionville: 10.4°C by day, -1°C at night, 163 mm of rain over 10.2 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high10.4°C
Typical low-1°C
Rain163 mm
Wet days10.2

Comfort score 5 this month (May leads the year at 75). Daylight is calculated as 9 h 45 from latitude 35.62°.

Event window

Frost-level nights in December

The measured night-time normal is -1°C, so frost is typical rather than exceptional this month.

The evidence behind this page

One month,
from the same station.

Place identity
GeoNames 4664218
NOAA station
USC00401720 · CHRISTIANA 5W
Station distance
13.3 km from the place centre
Coverage
Good coverage · 17 usable years
Important limit
Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.