United States · 1991–2020 normal
Westford in
December.
Typical December weather in Westford: 4.3°C by day, -5.5°C at night, 111 mm of rain over 9.6 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high4.3°C
Typical low-5.5°C
Rain111 mm
Wet days9.6
Comfort score 5 this month (September leads the year at 78). Daylight is calculated as 9 h 04 from latitude 42.58°.
Event window
Frost-level nights in December
The measured night-time normal is -5.5°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 4955219
- NOAA station
- USC00194313 · LOWELL
- Station distance
- 9.2 km from the place centre
- Coverage
- Strong coverage · 29 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.