Chalk River Weather in December
Chalk River in December
The short of it: Chalk River in December averages a high of -3 °C (27 °F) and a low of -11 °C (12 °F), with 64 mm (2.5 in) of rain and about 8 h 39 min of daylight. Rated 1 of 5 for a visit; the best months are June and August. Source: TerraClimate climate normals, 1991–2020.
Average high -3° · low -11° · rain 64 mm · daylight 8 h 39 min
✦ Travel with care for a visit · best months: June & August
Thirty years of records give Chalk River an average December high of -3°, a low of -11° and some 64 mm of rain. Highs fall 8° against November, to near -3°; nights run about -11°. Wet spells are common — about 64 mm, the 9th wettest month. Snow lies on the ground; mind the passes.
The sun is up for about 8 h 39 min in mid-December, 43 minutes less than a month before.
For the traveller: pack the buffalo coat, mittens and fur-lined boots, and an oilskin besides. The Almanac rates December 1 of 5 for a visit; the finest months here are June and August.
Against its neighbours, Chalk River runs cooler than most and drier than most in December. Deep River, 10 km to the NNW, is 1° warmer by day.
December in Chalk River, by the numbers
- Warmth rank
- 10th warmest of 12
- Rain rank
- 9th wettest of 12
- Versus November
- 8° colder, 6.0 mm less rain
- Versus January
- 4° warmer
- Day–night spread
- 8°
- Snow season
- Nov–Apr
- Daylight, mid-month
- 8 h 39 min
- Average wind
- 10 km/h
Neighbouring Towns
December averages · distance by the crow’s flight| Town | Distance | High | Low | Rain |
|---|---|---|---|---|
| Deep RiverOntario | 10 km NNW | -2° | -11° | 65 mm |
| PetawawaOntario | 19 km SE | -2° | -10° | 68 mm |
| PembrokeOntario | 34 km SE | -2° | -11° | 69 mm |
| Fort-CoulongeQuebec | 58 km ESE | -2° | -11° | 72 mm |
| EganvilleOntario | 60 km SSE | -2° | -10° | 66 mm |
| CobdenOntario | 61 km SE | -2° | -11° | 67 mm |
| RenfrewOntario | 85 km SE | -2° | -10° | 57 mm |
| ShawvilleQuebec | 88 km ESE | -3° | -11° | 65 mm |