United States · 1991–2020 normal
Grantham in
December.
Typical December weather in Grantham: 1.9°C by day, -9.1°C at night, 89 mm of rain over 9.2 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high1.9°C
Typical low-9.1°C
Rain89 mm
Wet days9.2
Comfort score 5 this month (June leads the year at 73). Daylight is calculated as 8 h 58 from latitude 43.49°.
Event window
Frost-level nights in December
The measured night-time normal is -9.1°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 5086792
- NOAA station
- USC00275868 · NEWPORT
- Station distance
- 13 km from the place centre
- Coverage
- Strong coverage · 30 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.