Dease Lake (BC) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Dease Lake.
Climate overview of Dease Lake
Dease Lake, British Columbia, Canada, experiences significant temperature variation throughout the year. Summers bring daytime highs of 17°C (63°F) in July, while winters cool to -11°C (12°F) in January.
Dease Lake sees a moderate amount of rain/snowfall, totalling around 746 mm (29 in) per year. It experiences a distinct dry season from February to March, with mild summers and very cold winters, creating some seasonal variation. The most sunshine falls in June, with an average of 7.5 hours of daily sunshine.
Dease Lake Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Dease Lake - and find the best time to visit.
Monthly Temperature in Dease Lake
Depending on the time of the year, temperatures range from moderate to very cold in Dease Lake. Average maximum daytime temperatures range from a moderate 17°C (63°F) in July, the warmest time of the year, to a very cold -11°C (12°F) during cooler months like January.
At night, you can expect temperatures ranging from 7°C (45°F) in July to around -18°C (0°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Dease Lake
Generally, Dease Lake has a moderate amount of precipitation, averaging 746 mm (29 in) of rain/snowfall annually. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, July it receives moderate rainfall, averaging 98 mm (3.9 in) of precipitation, recorded across 16 rainy days. In contrast, the driest month February brings less snowfall, with 34 mm (1.3 in) over 10 snowy days. For more details, please visit our Dease Lake Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Dease Lake
Seasonal changes in sunshine hours are quite dramatic in Dease Lake. While June receives considerable daily sunshine with up to 7.5 hours, December marks the darkest time of the year, where sunshine is scarce with only 1.2 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Wind Speed in Dease Lake
The mean wind speed varies between 1 m/s (2 knots) and 2 m/s (4 knots) throughout the year. It is lowest in July, August, September, October, November and December and highest during January, February, March, April, May and June. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Dease Lake
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 and August
- Warmest weather: June, July and August
- Most sunshine: June
- Fewest rainy days: April
- Seasonal pattern: A distinct dry season from February to March, with mild summers and very cold winters
- Coldest conditions: January, with freezing nights around -18°C (0°F).
Frequently asked questions about the climate in Dease Lake
What is the best time to visit Dease Lake?
June, July and August typically offer the most optimal weather in Dease Lake. In contrast, January, February, March, April, October, November and December tend to have less optimal conditions. Dease Lake has a distinct dry season from February to March, with mild summers and very cold winters.
What temperatures can I expect in Dease Lake?
Daytime highs range from -11°C (12°F) in January to 17°C (63°F) in July. Nighttime lows range from -18°C (0°F) to 7°C (45°F). Temperatures vary considerably through the year.
How much rain does Dease Lake get?
Annual rainfall is around 746 mm (29 in). July is the wettest month with 98 mm (3.9 in), while February is the driest with 34 mm (1.3 in).
How sunny is Dease Lake?
Dease Lake receives around 1,610 hours of sunshine per year. June is the sunniest month with 225 hours, while December is the cloudiest with just 37 hours.
Dease Lake 3-Day Forecast
Dease Lake on the map
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