Climate averages 1991–2020
Sault Ste. Marie weather
in December.
A freezing month with moderate precipitation: the 10th warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a freezing month in Sault Ste. Marie: daytime highs average -1.7°C and nights cool to about -7.7°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 56 mm of precipitation on roughly 11 days, which makes December a month with moderate precipitation (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 8 h 39 min on an average December day.
The nearest other city in this atlas is Greater Sudbury (256 km away). In December its highs average -3.4°C, 1.7°C cooler than Sault Ste. Marie, with 59 mm of precipitation.
Among the 86 cities listed in Canada, Sault Ste. Marie ranks joint 68th of 86 for the warmest December highs and joint 14th of 86 for the driest December (precipitation, lowest first). The mean December high of those 86 cities is 0.2°C; Sault Ste. Marie is 1.9°C cooler than that mean.
From December to January, average highs fall by 4.7°C to -6.5°C, and monthly precipitation falls from 56 mm to 46 mm.
The annual picture
December in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Sault Ste. Marie climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -6.5°C-13.1°C | -13.1°C | 46 | 10.2 | 9.09 h |
| February | -6.0°C-12.6°C | -12.6°C | 36 | 7.6 | 10.310 h |
| March | -0.5°C-7.6°C | -7.6°C | 46 | 8.3 | 11.912 h |
| April | 7.0°C-1.4°C | -1.4°C | 67 | 10.2 | 13.514 h |
| May | 15.4°C5.6°C | 5.6°C | 72 | 10.0 | 15.015 h |
| June | 21.0°C11.8°C | 11.8°C | 81 | 9.8 | 15.816 h |
| July | 23.3°C15.4°C | 15.4°C | 101 | 11.4 | 15.415 h |
| August | 22.8°C15.5°C | 15.5°C | 95 | 10.9 | 14.214 h |
| September | 18.8°C12.0°C | 12.0°C | 108 | 12.1 | 12.613 h |
| October | 11.5°C5.5°C | 5.5°C | 101 | 13.7 | 10.911 h |
| November | 4.4°C-0.8°C | -0.8°C | 67 | 11.2 | 9.59 h |
| December, selected | -1.7°C-7.7°C | -7.7°C | 56 | 11.1 | 8.79 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
December in nearby cities
- Greater Sudbury in DecemberCanada · 256 kmHigh -3.4°C · Low -11.4°C · 59 mm precipitation
- Green Bay in DecemberUnited States · 363 kmHigh -0.6°C · Low -7.2°C · 45 mm precipitation
- Flint in DecemberUnited States · 393 kmHigh 1.6°C · Low -4.5°C · 54 mm precipitation
- Appleton in DecemberUnited States · 405 kmHigh -1.1°C · Low -7.7°C · 45 mm precipitation
- Grand Rapids in DecemberUnited States · 409 kmHigh 1.7°C · Low -3.8°C · 60 mm precipitation
- Wyoming in DecemberUnited States · 415 kmHigh 1.9°C · Low -3.8°C · 60 mm precipitation
- Lansing in DecemberUnited States · 421 kmHigh 1.8°C · Low -4.4°C · 56 mm precipitation
- Sarnia in DecemberCanada · 422 kmHigh 1.8°C · Low -3.3°C · 56 mm precipitation
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Sault Ste. Marie) is explained once on the Sault Ste. Marie year overview and on the Sources, method and limits page.