United States · 1991–2020 normal
Union Market in
December.
Typical December weather in Union Market: 9.3°C by day, -0.5°C at night, 98 mm of rain over 8.1 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high9.3°C
Typical low-0.5°C
Rain98 mm
Wet days8.1
Comfort score 10 this month (May leads the year at 77). Daylight is calculated as 9 h 27 from latitude 38.91°.
Event window
Frost-level nights in December
The measured night-time normal is -0.5°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 13526901
- NOAA station
- USC00186350 · NATL ARBORETUM DC
- Station distance
- 2.5 km from the place centre
- Coverage
- Strong coverage · 28 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.