Dease Lake Weather in May
May in Dease Lake averages 11°C (52°F) during the day and -1°C (30°F) at night. Around 55 mm (2.2 in) of snow/rainfall is typical for this time of year.
Rainfall in Dease Lake in May
Records from the past 30 years suggest around 10 days of snow/rain, with 55 mm (2.2 in) average for the month. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.
Temperature in Dease Lake in May
Expect highs of 11°C (52°F) in Dease Lake in May, with nights dropping to around -1°C (30°F). Even at the warmest part of the day, temperatures stay low. Dressing warmly from the start is the sensible approach. With overnight lows of -1°C (30°F), temperatures fall below freezing at night. An extra thick blanket can make a real difference if your accommodation runs cold.
Sunshine in Dease Lake in May
The month enjoys around 212 hours of sunshine, creating mostly sunny days despite the cool temperatures.
Wind Speed in Dease Lake in May
Wind speeds average 2 m/s (4 knots) during May. At this speed, expect light breezes that you can feel on your face and cause leaves to rustle gently. Since this is an average, some days are calmer with barely any wind while others have more noticeable gentle breezes.If you prefer enjoying temperate temperatures and rain-free days, June, July and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Canada, check out our Dease Lake's climate page.
Dease Lake Temperature in May
Min Temperature
-1°C (30°F)
Max Temperature
11°C (52°F)
Chance of Rain
35%
Precipitation
55 mm (2.2 in)
Rainy days
10 days
Windspeed
2 m/s (4 knots)
Sunshine
212 hours
Percentage Sunshine
41%
Daily Historical Temperatures
48-year average (1976-2025)
Based on our historical records, temperatures in Dease Lake typically rise from around 10°C (50°F) at the start of May to approximately 16°C (61°F) by the end. Nights are cold, with lows typically ranging from -2°C (28°F) to 3°C (37°F).
Average temperatures in May
Daily Historical Precipitation
48-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Dease Lake in May
Browse day-by-day weather records for Dease Lake spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Dease Lake historical weather extremes in May
Based on weather observations in Dease Lake between 1998 and 2026, these are the recorded extremes during May.
- Dease Lake recorded its highest May temperature of 29°C (84°F) on May 18, 2023.
- The lowest daytime temperature in May was -2°C (28°F), recorded on May 5, 2002.
- Nighttime temperatures dropped to -12°C (10°F) on May 6, 2002, marking the coldest May night on record.
- The wettest day in May Dease Lake was on May 24, 2019 with 15 mm (0.6 in) of precipitation.
Best Places in Canada in May
Find out more about the weather in Canada and which places have the best travel conditions in this month. See all of Canada in May →
perfect weather
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tolerable
unpleasant
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What to Wear in Dease Lake in May
The weather can be unpredictable in May, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. Rain is likely on several days, so bring a good rain jacket. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Dease Lake in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Canada, check out our Dease Lake's climate page.
Temperature Rainfall Sunshine Wind Speed
See the full Dease Lake climate overview or explore weather in Canada.
