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December in Whitehorse averages -11°C (12°F) during the day and -18°C (0°F) at night. Around 39 mm (1.5 in) of snowfall is typical for this time of year.
December in Whitehorse can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Pick a month to see the average temperature, rainfall and sunshine in Whitehorse - and find the best time to visit.
48-year average (1976-2025)
Based on our historical records, temperatures in Whitehorse typically drop from around -9°C (16°F) at the start of December to approximately -12°C (10°F) by the end. Nights are very cold, with lows typically ranging from -19°C (-2°F) to -14°C (7°F).
Browse day-by-day weather records for Whitehorse spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Based on weather observations in Whitehorse between 2006 and 2025, these are the recorded extremes during December.
Find out more about the weather in Canada and which places have the best travel conditions in this month. See all of Canada in December →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
We recommend you pack up your warm winter gear for Whitehorse in December. If you have insulated boots, thermal layers, and a heavy winter coat that can handle snow and freezing temperatures it's smart to bring them. Don't forget gloves, a warm hat, and a scarf. Some rain is possible, so pack something to handle light showers. Sunglasses aren't essential this month, though you might want them for the occasional bright moment.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity
See the full Whitehorse climate overview or explore weather in Canada.
Where to go in December - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
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