Williston (ND) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Williston.
Climate overview of Williston
The climate in Williston, North Dakota, United States of America, is marked by large temperature swings across the seasons, ranging from 30°C (86°F) in July to -4°C (25°F) in January.
The city has a relatively dry climate, receiving around 397 mm (16 in) of rain/snowfall per year. It does experience a distinct dry season from September to April. May is the wettest month and January the driest.
Williston Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Williston — and find the best time to visit.
Monthly Temperature in Williston
In Williston, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a comfortable 30°C (86°F) in July to a very cold -4°C (25°F) in January.
Nighttime temperatures range from 14°C (57°F) in July to -15°C (5°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Williston
Williston typically sees modest rain/snowfall throughout the year, with an average annual precipitation of 397 mm (16 in). The seasons in Williston bring significant changes in precipitation. The wettest month, May, receives moderate rainfall, with an average of 76 mm (3 in) of precipitation. This rainfall is distributed across 13 rainy days.
In contrast, the driest month, January, experiences much less snowfall, totaling 7.8 mm (0.3 in) over 6 snowy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Williston Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Williston
Frequently asked questions about the climate in Williston
What is the best time to visit Williston?
June, August and September typically offer the most optimal weather in Williston. In contrast, January, February and December tend to have less optimal conditions. Williston has a distinct dry season from September to April.
What temperatures can I expect in Williston?
Daytime highs range from -4°C (25°F) in January to 30°C (86°F) in July. Nighttime lows range from -15°C (5°F) to 14°C (57°F). Temperatures vary considerably through the year.
How much rain does Williston get?
Annual rainfall is around 397 mm (16 in). May is the wettest month with 76 mm (3 in), while January is the driest with 7.8 mm (0.3 in).
Williston 3-Day Forecast
Williston (ND) 3-Day Forecast
Williston on the map
Williston is highlighted — select any city to see its climate.
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