Canada · 1991–2020 normal

Chalk River in
December.

Typical December weather in Chalk River: -2.4°C by day, -9.9°C at night, 56 mm of rain over 11.2 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high-2.4°C
Typical low-9.9°C
Rain56 mm
Wet days11.2

Comfort score 5 this month (August leads the year at 81). Daylight is calculated as 8 h 39 from latitude 46.02°.

Event window

Frost-level nights in December

The measured night-time normal is -9.9°C, so frost is typical rather than exceptional this month.

The evidence behind this page

One month,
from the same station.

Place identity
GeoNames 5919483
NOAA station
CA006101335 · CHALK RIVER AECL
Station distance
7.4 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.