Northwest Territories climate guide

Temperature in Northwest Territories (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
-24°C maximum daytime temperature in January in Northwest Territories (Yellowknife)-24
-20°C maximum daytime temperature in February in Northwest Territories (Yellowknife)-20
-13°C maximum daytime temperature in March in Northwest Territories (Yellowknife)-13
-1°C maximum daytime temperature in April in Northwest Territories (Yellowknife)-1
10°C maximum daytime temperature in May in Northwest Territories (Yellowknife)10
18°C maximum daytime temperature in June in Northwest Territories (Yellowknife)18
21°C maximum daytime temperature in July in Northwest Territories (Yellowknife)21
18°C maximum daytime temperature in August in Northwest Territories (Yellowknife)18
10°C maximum daytime temperature in September in Northwest Territories (Yellowknife)10
1°C maximum daytime temperature in October in Northwest Territories (Yellowknife)1
-11°C maximum daytime temperature in November in Northwest Territories (Yellowknife)-11
-20°C maximum daytime temperature in December in Northwest Territories (Yellowknife)-20
Min temperature (night-time)
-32°C minimum night-time temperature in January in Northwest Territories (Yellowknife)-32
-30°C minimum night-time temperature in February in Northwest Territories (Yellowknife)-30
-25°C minimum night-time temperature in March in Northwest Territories (Yellowknife)-25
-12°C minimum night-time temperature in April in Northwest Territories (Yellowknife)-12
0°C minimum night-time temperature in May in Northwest Territories (Yellowknife)0
8°C minimum night-time temperature in June in Northwest Territories (Yellowknife)8
12°C minimum night-time temperature in July in Northwest Territories (Yellowknife)12
10°C minimum night-time temperature in August in Northwest Territories (Yellowknife)10
3°C minimum night-time temperature in September in Northwest Territories (Yellowknife)3
-4°C minimum night-time temperature in October in Northwest Territories (Yellowknife)-4
-19°C minimum night-time temperature in November in Northwest Territories (Yellowknife)-19
-28°C minimum night-time temperature in December in Northwest Territories (Yellowknife)-28

Sunshine & Daylight in Northwest Territories

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
6 hours of daylight per day in January in Northwest Territories (Yellowknife)6
9 hours of daylight per day in February in Northwest Territories (Yellowknife)9
12 hours of daylight per day in March in Northwest Territories (Yellowknife)12
15 hours of daylight per day in April in Northwest Territories (Yellowknife)15
18 hours of daylight per day in May in Northwest Territories (Yellowknife)18
20 hours of daylight per day in June in Northwest Territories (Yellowknife)20
19 hours of daylight per day in July in Northwest Territories (Yellowknife)19
16 hours of daylight per day in August in Northwest Territories (Yellowknife)16
13 hours of daylight per day in September in Northwest Territories (Yellowknife)13
10 hours of daylight per day in October in Northwest Territories (Yellowknife)10
7 hours of daylight per day in November in Northwest Territories (Yellowknife)7
5 hours of daylight per day in December in Northwest Territories (Yellowknife)5

Rainfall in Northwest Territories

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
10 days with some rainfall in January in Northwest Territories (Yellowknife)10
9 days with some rainfall in February in Northwest Territories (Yellowknife)9
8 days with some rainfall in March in Northwest Territories (Yellowknife)8
6 days with some rainfall in April in Northwest Territories (Yellowknife)6
6 days with some rainfall in May in Northwest Territories (Yellowknife)6
8 days with some rainfall in June in Northwest Territories (Yellowknife)8
9 days with some rainfall in July in Northwest Territories (Yellowknife)9
10 days with some rainfall in August in Northwest Territories (Yellowknife)10
10 days with some rainfall in September in Northwest Territories (Yellowknife)10
13 days with some rainfall in October in Northwest Territories (Yellowknife)13
15 days with some rainfall in November in Northwest Territories (Yellowknife)15
12 days with some rainfall in December in Northwest Territories (Yellowknife)12
Average monthly rainfall (mm)
16 mm monthly rainfall in January in Northwest Territories (Yellowknife)16
13 mm monthly rainfall in February in Northwest Territories (Yellowknife)13
11 mm monthly rainfall in March in Northwest Territories (Yellowknife)11
11 mm monthly rainfall in April in Northwest Territories (Yellowknife)11
17 mm monthly rainfall in May in Northwest Territories (Yellowknife)17
24 mm monthly rainfall in June in Northwest Territories (Yellowknife)24
36 mm monthly rainfall in July in Northwest Territories (Yellowknife)36
42 mm monthly rainfall in August in Northwest Territories (Yellowknife)42
29 mm monthly rainfall in September in Northwest Territories (Yellowknife)29
36 mm monthly rainfall in October in Northwest Territories (Yellowknife)36
25 mm monthly rainfall in November in Northwest Territories (Yellowknife)25
15 mm monthly rainfall in December in Northwest Territories (Yellowknife)15

More climate for Northwest Territories

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (Maximum)
No UV (maximum) index in January in Northwest Territories (Yellowknife)0
No UV (maximum) index in February in Northwest Territories (Yellowknife)0
UV (maximum) index 1 (Low) in March in Northwest Territories (Yellowknife)1
UV (maximum) index 2 (Low) in April in Northwest Territories (Yellowknife)2
UV (maximum) index 4 (Moderate) in May in Northwest Territories (Yellowknife)4
UV (maximum) index 5 (Moderate) in June in Northwest Territories (Yellowknife)5
UV (maximum) index 5 (Moderate) in July in Northwest Territories (Yellowknife)5
UV (maximum) index 4 (Moderate) in August in Northwest Territories (Yellowknife)4
UV (maximum) index 2 (Low) in September in Northwest Territories (Yellowknife)2
UV (maximum) index 1 (Low) in October in Northwest Territories (Yellowknife)1
No UV (maximum) index in November in Northwest Territories (Yellowknife)0
No UV (maximum) index in December in Northwest Territories (Yellowknife)0
Heat & Humidity
No heat & humidity in January in Northwest Territories (Yellowknife)0
No heat & humidity in February in Northwest Territories (Yellowknife)0
No heat & humidity in March in Northwest Territories (Yellowknife)0
No heat & humidity in April in Northwest Territories (Yellowknife)0
No heat & humidity in May in Northwest Territories (Yellowknife)0
No heat & humidity in June in Northwest Territories (Yellowknife)0
No heat & humidity in July in Northwest Territories (Yellowknife)0
No heat & humidity in August in Northwest Territories (Yellowknife)0
No heat & humidity in September in Northwest Territories (Yellowknife)0
No heat & humidity in October in Northwest Territories (Yellowknife)0
No heat & humidity in November in Northwest Territories (Yellowknife)0
No heat & humidity in December in Northwest Territories (Yellowknife)0

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Going to the Northwest Territories? Find the best month to visit the Northwest Territories based on the weather.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Check climate guides for the Northwest Territories showing average temperature, rainfall & sunshine figures for each month of the year. The climate guide shown above is for Yellowknife.

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More about Northwest Territories

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

The climate guide for Northwest Territories, represented by Yellowknife, shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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