United States · 1991–2020 normal
Londonderry in
December.
Typical December weather in Londonderry: 3.9°C by day, -4.7°C at night, 82 mm of rain over 8.5 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high3.9°C
Typical low-4.7°C
Rain82 mm
Wet days8.5
Comfort score 5 this month (September leads the year at 84). Daylight is calculated as 9 h 02 from latitude 42.87°.
Event window
Frost-level nights in December
The measured night-time normal is -4.7°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 5088905
- NOAA station
- USW00014710 · MANCHESTER AP
- Station distance
- 8.8 km from the place centre
- Coverage
- Good coverage · 23 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.