Toronto Weather in December
Canada · Humid Continental climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
December in Toronto sees average temperatures ranging from a low of -2.0°C (28.4°F) to a high of 3.6°C (38.5°F), with a mean of 0.9°C (33.6°F). Compared to the annual average of 9.6°C (49.3°F), this month is 8.7°C cooler than the yearly norm. Precipitation averages 81.1mm, making it approximately 6.0mm wetter than the monthly average of 75.0mm. The city receives an average of 3.8 hours of sunshine per day during December, with relative humidity averaging 76.6%. Wind speeds reach an average maximum of 23.0 km/h. Snowfall averages 15.0cm during December, which can affect travel plans and outdoor activities. For travelers, this month offers a temperature experience in Toronto, with wetter-than-average conditions compared to the rest of the year.
There's something about Toronto in early October that feels borrowed — the city knows winter is coming and grips autumn tightly. I walked the Distillery District one Thanksgiving weekend: 14°C, maple leaves crackling underfoot, cafés serving pumpkin everything. Winter (December-March) is when Toronto leans into its indoor culture: underground PATH system, hockey arenas, the AGO. Summer (June-August) brings the city outdoors — 25°C, patio culture, festivals on the islands. I find May the most underrated: 15°C, cherry blossoms in High Park, and locals who survived winter emerging with gratitude. Each season has its own Toronto.
December vs Adjacent Months
| Metric | November | December | January |
|---|---|---|---|
| Mean Temp | 5.5°C (41.9°F) | 0.9°C (33.6°F) | -2.7°C (27.1°F) |
| Rainfall | 58.1mm | 81.1mm | 81.8mm |
| Sunshine | 5.8 hrs | 3.8 hrs | 4.1 hrs |
| Humidity | 73.1% | 76.6% | 75.1% |
| Wind | 22.5 km/h | 23.0 km/h | 21.8 km/h |
| Rainy Days | 11.8 | 12.8 | 8.8 |
| Snowfall | 5.7 cm | 15.0 cm | 25.5 cm |
Seasonal Context
December falls in Winter in the Northern Hemisphere. Winter is the coolest season with the shortest daylight hours. For travelers visiting Toronto in December, the data indicates mixed conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Toronto in December?
The average temperature in Toronto during December ranges from -2.0°C (28.4°F) to 3.6°C (38.5°F), with a mean of 0.9°C (33.6°F).
How much does it rain in Toronto in December?
Toronto receives an average of 81.1mm of precipitation in December, spread across approximately 12.8 rainy days.
What should I pack for Toronto in December?
Based on December weather data, pack heavy winter clothing, thermal layers, and a warm coat.
Is December a good time to visit Toronto?
December is a cooler month, suitable for travelers who prefer mild weather and fewer crowds. Pack warm layers and enjoy indoor attractions.
Other Months for Toronto
Cities with Similar December Climate (Humid Continental)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 43.65°, -79.38°. Timezone: America/Toronto. Last updated: 2026-07-30.