Williston (VT) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Williston.
Climate overview of Williston
Williston, Vermont, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 27°C (81°F) in July, while winters cool to -2°C (28°F) in January.
With around 1148 mm (45 in) of annual rain/snowfall, Williston has a notably wet climate. However, this rain/snowfall is not evenly distributed — the city has warm summers and very cold winters. The wettest month is June. The sunniest month is July, with 10.2 hours of sunshine per day on average.
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
Depending on the time of the year, temperatures range from comfortable to very cold in Williston. Average daytime temperatures reach a comfortable 27°C (81°F) in July. In January, the coolest month of the year, temperatures drop to a very cold -2°C (28°F).
At night, temperatures range from around 15°C (59°F) in July to -12°C (10°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Williston
Williston has a relatively rain/snowy climate with high precipitation levels, averaging 1148 mm (45 in) of rain/snowfall annually. Williston can be quite wet during June, receiving approximately 143 mm (5.6 in) of precipitation over 17 rainy days.
In contrast, during the driest month (January), you will experience much drier conditions, with 61 mm (2.4 in) of precipitation spread across 17 snowy days. 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
Sunshine Hours in Williston
Williston can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 10.2 hours of sunshine daily. In contrast, the city experiences much darker days in November, with only 3.1 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Best Time to Visit Williston
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: August and September
- Warmest weather: July and August
- Most sunshine: July
- Seasonal pattern: Warm summers and very cold winters
- Coldest conditions: January, with freezing nights around -12°C (10°F).
Frequently asked questions about the climate in Williston
What is the best time to visit Williston?
August and September typically offer the most optimal weather in Williston. In contrast, January, February, March, November and December tend to have less optimal conditions. Williston has warm summers and very cold winters.
What temperatures can I expect in Williston?
Daytime highs range from -2°C (28°F) in January to 27°C (81°F) in July. Nighttime lows range from -12°C (10°F) to 15°C (59°F). Temperatures vary considerably through the year.
How much rain does Williston get?
Annual rainfall is around 1148 mm (45 in). June is the wettest month with 143 mm (5.6 in), while January is the driest with 61 mm (2.4 in).
How sunny is Williston?
Williston receives around 2,321 hours of sunshine per year. July is the sunniest month with 305 hours, while November is the cloudiest with just 93 hours. Overall, Williston enjoys abundant sunshine.
Williston 3-Day Forecast
Williston (VT) 3-Day Forecast
Williston on the map
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