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Northwest Territories

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Northwest Territories Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Northwest Territories year round climate

  • Spring (March–May): Average -39–46°F, cold climate, windy, rainfall gradually increases. Common activities: Aurora viewing (if later in spring), snow activities (e.g., snowshoeing, depending on snow conditions). Recommended clothing: Warm jacket, hat, scarf, gloves, waterproof pants and shoes.
  • Summer (June–August): Average 51–59°F, cool climate, June has the most rainfall, which gradually decreases afterwards. Common activities: Hiking, boating, fishing, wildlife viewing. Recommended clothing: Lightweight warm jacket, long pants, waterproof jacket.
  • Autumn (September–November): Average 10.2–-40.8°F, cold climate, decreasing rainfall, snow begins to fall. Common activities: Aurora viewing, autumn hiking (depending on weather conditions). Recommended clothing: Warm jacket, hat, scarf, gloves, waterproof pants and shoes.
  • Winter (December–February): Average -6.8–-41.5°F, very cold climate, dry, little snowfall. Common activities: Snow activities (sledding, snowmobiling), aurora viewing. Recommended clothing: Heavy warm jacket, hat, scarf, gloves, waterproof pants and shoes, layered clothing.

Northwest Territories climatological average

Annual average temperature: approx. 37.8°F / Annual rainfall: approx. 603 mm / Summer humidity: 60%–70% / Rainiest month: June

Northwest Territories monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
19.8°F
17
February
22.5°F
25.3
March
24.8°F
17.1
April
34.7°F
30.1
May
46.8°F
101.5
June
51.6°F
159.7
July
59.9°F
67.5
August
58.3°F
65.8
September
50.4°F
20.9
October
40.3°F
51.1
November
23.2°F
37.3
December
21.2°F
10.4

Northwest Territories weather for the next seven days

11/23
Sunday
Moderate snow
18.4°F/11.7°F
11/24
Monday
Light snow
12.9°F/9°F
11/25
Tuesday
Moderate snow
13.9°F/7.2°F
11/26
Wednesday
Moderate snow
13.2°F/6.2°F
11/27
Thursday
Freezing fog
9.2°F/-7.1°F
11/28
Friday
Overcast
1.4°F/-12.2°F
11/29
Saturday
Overcast
9.6°F/-1.9°F