Williston climate guide

Temperature in Williston (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
-7°C maximum daytime temperature in January in Williston-7
-3°C maximum daytime temperature in February in Williston-3
4°C maximum daytime temperature in March in Williston4
13°C maximum daytime temperature in April in Williston13
20°C maximum daytime temperature in May in Williston20
26°C maximum daytime temperature in June in Williston26
29°C maximum daytime temperature in July in Williston29
28°C maximum daytime temperature in August in Williston28
21°C maximum daytime temperature in September in Williston21
15°C maximum daytime temperature in October in Williston15
3°C maximum daytime temperature in November in Williston3
-5°C maximum daytime temperature in December in Williston-5
Min temperature (night-time)
-19°C minimum night-time temperature in January in Williston-19
-15°C minimum night-time temperature in February in Williston-15
-8°C minimum night-time temperature in March in Williston-8
-1°C minimum night-time temperature in April in Williston-1
6°C minimum night-time temperature in May in Williston6
11°C minimum night-time temperature in June in Williston11
13°C minimum night-time temperature in July in Williston13
12°C minimum night-time temperature in August in Williston12
6°C minimum night-time temperature in September in Williston6
0°C minimum night-time temperature in October in Williston0
-9°C minimum night-time temperature in November in Williston-9
-16°C minimum night-time temperature in December in Williston-16

Sunshine & Daylight in Williston

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
9 hours of daylight per day in January in Williston9
10 hours of daylight per day in February in Williston10
12 hours of daylight per day in March in Williston12
14 hours of daylight per day in April in Williston14
15 hours of daylight per day in May in Williston15
16 hours of daylight per day in June in Williston16
16 hours of daylight per day in July in Williston16
14 hours of daylight per day in August in Williston14
13 hours of daylight per day in September in Williston13
11 hours of daylight per day in October in Williston11
9 hours of daylight per day in November in Williston9
8 hours of daylight per day in December in Williston8

Rainfall in Williston

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
8 days with some rainfall in January in Williston8
6 days with some rainfall in February in Williston6
8 days with some rainfall in March in Williston8
8 days with some rainfall in April in Williston8
10 days with some rainfall in May in Williston10
10 days with some rainfall in June in Williston10
9 days with some rainfall in July in Williston9
7 days with some rainfall in August in Williston7
7 days with some rainfall in September in Williston7
5 days with some rainfall in October in Williston5
6 days with some rainfall in November in Williston6
8 days with some rainfall in December in Williston8
Average monthly rainfall (mm)
12 mm monthly rainfall in January in Williston12
10 mm monthly rainfall in February in Williston10
14 mm monthly rainfall in March in Williston14
32 mm monthly rainfall in April in Williston32
49 mm monthly rainfall in May in Williston49
72 mm monthly rainfall in June in Williston72
51 mm monthly rainfall in July in Williston51
39 mm monthly rainfall in August in Williston39
36 mm monthly rainfall in September in Williston36
20 mm monthly rainfall in October in Williston20
12 mm monthly rainfall in November in Williston12
12 mm monthly rainfall in December in Williston12

More climate for Williston

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (Maximum)
UV (maximum) index 1 (Low) in January in Williston1
UV (maximum) index 1 (Low) in February in Williston1
UV (maximum) index 3 (Moderate) in March in Williston3
UV (maximum) index 5 (Moderate) in April in Williston5
UV (maximum) index 6 (High) in May in Williston6
UV (maximum) index 7 (High) in June in Williston7
UV (maximum) index 8 (Very High) in July in Williston8
UV (maximum) index 7 (High) in August in Williston7
UV (maximum) index 5 (Moderate) in September in Williston5
UV (maximum) index 3 (Moderate) in October in Williston3
UV (maximum) index 1 (Low) in November in Williston1
UV (maximum) index 1 (Low) in December in Williston1
Heat & Humidity
No heat & humidity in January in Williston0
No heat & humidity in February in Williston0
No heat & humidity in March in Williston0
No heat & humidity in April in Williston0
No heat & humidity in May in Williston0
No heat & humidity in June in Williston0
Moderate heat & humidity in July in WillistonM
Moderate heat & humidity in August in WillistonM
No heat & humidity in September in Williston0
No heat & humidity in October in Williston0
No heat & humidity in November in Williston0
No heat & humidity in December in Williston0

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

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More about Williston

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

The climate guide for Williston, North Dakota 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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