Kingston Weather in December
December in Kingston brings low temperatures, with daytime highs of 2°C (36°F) and nights around -5°C (23°F). Quite a bit of snow/rainfall is expected, around 91 mm (3.6 in), so pack an umbrella.
Rainfall in Kingston in December
Historically, the month has about 15 days of snow/rain, averaging 91 mm (3.6 in) in total. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.
Temperature in Kingston in December
Temperatures in Kingston in December top out at 2°C (36°F) and drop to -5°C (23°F) overnight. December is part of winter. It stays very cold throughout much of the day, so warm winter clothing is essential. With overnight lows of -5°C (23°F), temperatures fall below freezing at night. An extra thick blanket can make a real difference if your accommodation runs cold. It is a very cold month, so be prepared and make sure to dress up warm. It's always better to be prepared than to find oneself shivering in the cold.
Sunshine in Kingston in December
With limited sunshine this month, there are about 75 hours of sun. It's ideal for those who prefer a cooler, cloudier climate.December in Kingston 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.
Kingston Temperature in December
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Kingston Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Kingston - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Kingston typically drop from around 3°C (37°F) at the start of December to approximately -1°C (30°F) by the end. Nights are very cold, with lows typically ranging from -10°C (14°F) to -3°C (27°F).
Average temperatures in December
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather records for Kingston in December
Browse day-by-day weather records for Kingston spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Kingston historical weather extremes in December
The extremes listed below come from historical weather data collected in Kingston from 1976 through 2025.
- The hottest December day on record in Kingston reached 18°C (64°F) (December 6, 2001).
- Peak precipitation in December occurred on December 17, 2017, when 54 mm (2.1 in) of precipitation was measured.
Best Places in Canada in 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).
What to Wear in Kingston in December
Cold weather calls for smart layering in December. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Prepare for significant rainfall with proper waterproof clothing and shoes. Sunglasses aren't essential this month, though you might want them for the occasional bright moment.
What To Do in Kingston in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming4/10 -
Cycling3/10 -
Walking3/10 -
Camping1/10 -
Outdoor sports3/10
Kingston 3-Day Forecast
See the full Kingston climate overview or explore weather in Canada.
Popular in December
Where to go in December - average daytime high across popular destinations.
Vancouver
7°C (45°F) Toronto
4°C (39°F) Niagara Falls4°C (39°F) Montréal
0°C (32°F) Ottawa0°C (32°F) Calgary
-1°C (30°F) Whistler-3°C (27°F) Quebec City-2°C (28°F) 
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