Thetford Mines (QC) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Thetford Mines.
Climate overview of Thetford Mines
Thetford Mines, Quebec, Canada, sees big temperature differences between seasons, with July peaking at 24°C (75°F) and January dropping to -5°C (23°F).
Rain/snowfall is high, totalling around 1370 mm (54 in) per year. June is the wettest month and February the driest. The city also experiences warm summers and very cold winters.
Thetford Mines Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Thetford Mines - and find the best time to visit.
Monthly Temperature in Thetford Mines
Visitors to Thetford Mines can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a comfortable 24°C (75°F) in July, the warmest time of the year, to a very cold -5°C (23°F) during cooler months like January.
At night, you can expect temperatures ranging from 14°C (57°F) in July to around -16°C (3°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Thetford Mines
Thetford Mines is known for its substantial rain/snowfall, with annual precipitation reaching 1370 mm (54 in). While rainfall varies throughout the year, each season offers its own charm. June brings wetter days averaging 146 mm (5.7 in) of precipitation, spread over 14 rainy days.
In contrast, the driest month February experiences a drier climate, with about 84 mm (3.3 in) of snowfall spread across 13 snowy days. For more details, please visit our Thetford Mines Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Thetford Mines
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: June, July, August and September
- Warmest weather: July and August
- Seasonal pattern: Warm summers and very cold winters
- Coldest conditions: January, with freezing nights around -16°C (3°F).
Frequently asked questions about the climate in Thetford Mines
What is the best time to visit Thetford Mines?
June, July, August and September typically offer the most optimal weather in Thetford Mines. In contrast, January, February, March, April, October, November and December tend to have less optimal conditions. Thetford Mines has warm summers and very cold winters.
What temperatures can I expect in Thetford Mines?
Daytime highs range from -5°C (23°F) in January to 24°C (75°F) in July. Nighttime lows range from -16°C (3°F) to 14°C (57°F). Temperatures vary considerably through the year.
How much rain does Thetford Mines get?
Annual rainfall is around 1370 mm (54 in). June is the wettest month with 146 mm (5.7 in), while February is the driest with 84 mm (3.3 in).
Thetford Mines 3-Day Forecast
Thetford Mines on the map
Thetford Mines is highlighted - select any city to see its climate.
Popular this month
Where to go in September - average daytime high across popular destinations.
Toronto
22°C (72°F) Niagara Falls23°C (73°F) Montréal
22°C (72°F) Ottawa22°C (72°F) Quebec City
20°C (68°F) Vancouver19°C (66°F) Calgary19°C (66°F) Whistler15°C (59°F) 
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
The 5 most beautiful lakes in Canada
Explore Canada's stunning lakes: Lake Louise, Lake Superior, Maligne Lake, Emerald Lake, and Lake Okanagan, each offering unique beauty and activities.
Canoeing the south Nahannii
The South Nahanni in the northwest of Canada is one of the most impressive wilderness rivers in the world. Canoeing the south Nahanni is something you must add to your bucket list.
See Polar Bears in Churchill Canada
Thousands of bears gather at the small town of Churchill. In the evening the northern lights give a light show against the dark evening sky. An unforgettable experience.
Banff National Park
Snowy mountains, clear blue lakes and green forests make Banff National Park a wonderful bucket list destination. The pristine wilderness is a mecca for walkers.