United States · 1991–2020 normal

East Haddam in
December.

Typical December weather in East Haddam: 5.6°C by day, -4.1°C at night, 107 mm of rain over 8.9 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high5.6°C
Typical low-4.1°C
Rain107 mm
Wet days8.9

Comfort score 5 this month (September leads the year at 79). Daylight is calculated as 9 h 11 from latitude 41.45°. Open-water sea temperature is 8.6°C (37 km from the place centre).

Event window

Frost-level nights in December

The measured night-time normal is -4.1°C, so frost is typical rather than exceptional this month.

The evidence behind this page

One month,
from the same station.

Place identity
GeoNames 4833363
NOAA station
USW00054788 · MERIDEN MARKHAM MUNI AP
Station distance
31.2 km from the place centre
Coverage
Good coverage · 22 usable years
Important limit
Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.