| < September >
|Normal Max/ High Temperature
|Min/ Low Temperature
|Number of Wet Days (probability of rain on a day)
|Average Sunlight per day
|Average Daylight per day
|Sunny (Cloudy) Daylight Hours
|Sun altitude at solar noon on the 21st day.
- The average temperature in Williston, North Dakota in September is mild at 13.5 °C (56.3 °F).
- Afternoons can be warm with average high temperatures reaching 21.2 °C (70.2 °F).
- Overnight temperatures are generally cool with an average low of 5.8 °C (42.4 °F).
- The average daily temperature range/ variation in September is 15.4 °C (27.7 °F).
- The weather in September is dry with periodic rain. A mere 33.8mm (1.3in) of water falls across on average 6 days.
- The skies in Williston, North Dakota are slightly sunny having on average a pleasing 7:50 of splendid sunlight per day.
- The shortest day is 11:39 long and the longest day is 13:23 long with an average length of 12:31.
- There are approximately 4:29 per day when bright sunshine is absent due to cloud, haze or the sun being too low on the horizon to register.
- It is sunny approximately 63.6% of daylight hours and cloudy 36.4% of daylight hours.
Check the distance to and compare the Williston, North Dakota September averages with somewhere beginning with:
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Weather Trend Graph for September in Williston, North Dakota, Usa
Navigate to September Weather in Locations Surrounding Williston, North Dakota:
- Wynyard, Sk, Canada - 400.5 kms (248.9 miles) N
- Regina (Cda), Sk, Canada - 262 kms (162.8 miles) NNW
- Regina, Saskatchewan, Canada - 261.2 kms (162.3 miles) NNW
- Moose Jaw, Sk, Canada - 276.6 kms (171.9 miles) NNW
- Swift Current (Cda), Sk, Canada - 382.2 kms (237.5 miles) NW
- Swift Current (A), Sk, Canada - 375 kms (233 miles) NW
- Glasgow, Mt, Usa - 221.8 kms (137.8 miles) W
- Miles City, Montana, Usa - 257.3 kms (159.9 miles) SW
- Ekalaka, Mt, Usa - 264.5 kms (164.3 miles) SSW
- Crow Agency, Mt, Usa - 408.6 kms (253.9 miles) SW
- Yorkton, Sk, Canada - 352.9 kms (219.3 miles) NNE
- Princeton, Bc, Canada - 352.8 kms (219.2 miles) NNE
- Dauphin, Manitoba, Canada - 414.3 kms (257.5 miles) NE
- Broadview, Sk, Canada - 254.9 kms (158.4 miles) NNE
- Brandon, Mb, Canada - 329.9 kms (205 miles) NE
- Estevan, Sk, Canada - 124.9 kms (77.6 miles) NNE
- Morden, Mb, Canada - 422.4 kms (262.5 miles) ENE
- Langdon, Nd, Usa - 424 kms (263.5 miles) ENE
- Bismarck, North Dakota, Usa - 267 kms (165.9 miles) SE
- Eureka, Sd, Usa - 366.8 kms (227.9 miles) SE