United States · 1991–2020 normal
Old Saybrook Center in
December.
Typical December weather in Old Saybrook Center: 6.6°C by day, -1.9°C at night, 81 mm of rain over 7.6 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high6.6°C
Typical low-1.9°C
Rain81 mm
Wet days7.6
Comfort score 5 this month (September leads the year at 85). Daylight is calculated as 9 h 12 from latitude 41.29°. Open-water sea temperature is 8.6°C (19 km from the place centre).
Event window
Frost-level nights in December
The measured night-time normal is -1.9°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 7257394
- NOAA station
- USW00014707 · GROTON NEW LONDON AP
- Station distance
- 27.3 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.