Climate and monthly weather forecast
Williston, VT

Weather in January

January, the same as December, in Williston, Vermont, is another subzero cold winter month, with an average temperature varying between 12°F (-11.1°C) and 24.3°F (-4.3°C). With an average high-temperature of 24.3°F (-4.3°C) and an average low-temperature of 12°F (-11.1°C), January is the coldest month. Weather in January »

Weather in February

February, the last month of the winter in Williston, is also a subzero cold month, with temperature in the range of an average low of 13.5°F (-10.3°C) and an average high of 27.3°F (-2.6°C). In Williston, the average high-temperature in February is almost the same as in January - a still freezing cold 27.3°F (-2.6°C). Weather in February »

Weather in March

March, the first month of the spring in Williston, is a wintry month, with an average temperature fluctuating between 21.6°F (-5.8°C) and 35.8°F (2.1°C). In Williston, Vermont, the average high-temperature in March marginally rises from a freezing cold 27.3°F (-2.6°C) in February to a wintry 35.8°F (2.1°C). Weather in March »

Weather in April

April in Williston, Vermont, is a frosty spring month, with an average temperature varying between 33.4°F (0.8°C) and 49.6°F (9.8°C). In Williston, Vermont, the average high-temperature in April rises from a wintry 35.8°F (2.1°C) in March to a frosty 49.6°F (9.8°C). Weather in April »

Weather in May

The last month of the spring, May, is an enjoyable month in Williston, Vermont, with an average temperature fluctuating between 64.9°F (18.3°C) and 44.4°F (6.9°C). In Williston, the average high-temperature in May increases considerably from a frosty 49.6°F (9.8°C) in April to a comfortable 64.9°F (18.3°C). Weather in May »

Weather in June

June, the first month of the summer in Williston, is a pleasant month, with an average temperature fluctuating between 71.8°F (22.1°C) and 51.4°F (10.8°C). In June, the average high-temperature marginally rises from a comfortable 64.9°F (18.3°C) in May to a pleasant 71.8°F (22.1°C). Weather in June »

Weather in July

July in Williston, Vermont, is a moderately hot summer month, with temperature in the range of an average low of 57.2°F (14°C) and an average high of 78.4°F (25.8°C). The warmest month is July, with an average high-temperature of 78.4°F (25.8°C) and an average low-temperature of 57.2°F (14°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Williston, Vermont, with an average temperature varying between 76.5°F (24.7°C) and 55.6°F (13.1°C). In Williston, the average high-temperature in August is essentially the same as in July - a still warm 76.5°F (24.7°C). Weather in August »

Weather in September

September, the first month of the autumn in Williston, is still a pleasant month, with an average temperature ranging between min 49.1°F (9.5°C) and max 69.3°F (20.7°C). In September, the average high-temperature marginally drops from a warm 76.5°F (24.7°C) in August to an agreeable 69.3°F (20.7°C). Weather in September »

Weather in October

October, like September, in Williston, Vermont, is another fresh autumn month, with an average temperature ranging between min 40.8°F (4.9°C) and max 55.2°F (12.9°C). In Williston, the average high-temperature in October decreases from an agreeable 69.3°F (20.7°C) in September to a fresh 55.2°F (12.9°C). Weather in October »

Weather in November

November, the last month of the autumn in Williston, is another cold month, with an average temperature fluctuating between 29.1°F (-1.6°C) and 41.5°F (5.3°C). In November, the average high-temperature decreases from a fresh 55.2°F (12.9°C) in October to a cold 41.5°F (5.3°C). Weather in November »

Weather in December

December, the first month of the winter in Williston, is also a subzero cold month, with an average temperature varying between 20.1°F (-6.6°C) and 30.2°F (-1°C). In Williston, Vermont, the average high-temperature in December decreases from a wintry 41.5°F (5.3°C) in November to a subzero cold 30.2°F (-1°C). Weather in December »
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FAQ

What is the coldest month in Williston?

The coldest month is January, with an average high-temperature of 24.3°F (-4.3°C) and an average low-temperature of 12°F (-11.1°C).

What is the most humid month in Williston?

January and February, with an average relative humidity of 87%, are most humid months in Williston, Vermont.

How many days does it rain in Williston?

In Williston, during the entire year, the rain falls for 161.7 days and collects up to 29.33" (745mm) of precipitation.

When does it snow in Williston?

January through May, October through December are months with snowfall in Williston.

How much does it snow in Williston?

In Williston, Vermont, during the entire year, snow falls for 94.7 days and aggregates up to 50.91" (1293mm) of snow.

What is the month with the lowest UV index in Williston?

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Williston.

When does it snow the most in Williston?

The month with the most snowfall is February, when snow falls for 20.6 days and typically aggregates up to 11.73" (298mm) of snow.

What is the month with the least sunshine in Williston?

With an average of 2.8h of sunshine, February has the least sunshine of the year in Williston.

When is Daylight Saving Time (DST) in Williston?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts in Williston, Vermont, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from EDT to EST.

What are the least humid months in Williston?

The months with the lowest humidity are April and May, with an average relative humidity of 76%.

What is the month with the highest UV index in Williston?

The months with the highest UV index are May through August, with an average maximum UV index of 5.

What is the wettest month in Williston?

The month with the most rainfall in Williston, Vermont, is June, when the rain falls for 18 days and typically aggregates up to 3.19" (81mm) of precipitation.

When it does not snow in Williston?

In Williston, Vermont, snow does not fall in June through September.

When are the longest days in Williston?

With an average of 15h and 29min of daylight, June has the longest days of the year.

What is the warmest month in Williston?

With an average high-temperature of 78.4°F (25.8°C) and an average low-temperature of 57.2°F (14°C), July is the warmest month in Williston.

What month has the most sunshine in Williston?

With an average of 10.2h of sunshine, July has the most sunshine of the year in Williston.

What is the driest month in Williston?

September is the month with the least rainfall in Williston, Vermont. Rain falls for 12 days and accumulates 1.77" (45mm) of precipitation.

What is the month with the shortest days in Williston?

December has the shortest days of the year, with an average of 8h and 55min of daylight.

Average temperature
Williston, VT

Average temperature - Williston, VT

The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (24.3°F).

The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is January (12°F).

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Average pressure
Williston, VT

Average pressure - Williston, VT

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed
Williston, VT

Average wind speed - Williston, VT

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity
Williston, VT

Average humidity - Williston, VT

The months with the highest relative humidity are January and February (87%).
The months with the lowest relative humidity are April and May (76%).

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Average rainfall
Williston, VT

Average rainfall - Williston, VT

The wettest month (with the highest rainfall) is June (3.19").
The driest month (with the least rainfall) is September (1.77").

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Average rainfall days
Williston, VT

Average rainfall days - Williston, VT

The month with the highest number of rainy days is June (18 days).
The month with the least rainy days is February (6.2 days).

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Average snowfall
Williston, VT

Average snowfall - Williston, VT

The month with the highest snowfall is February (11.73").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Williston, VT

Average snowfall days - Williston, VT

The month with the highest number of snowfall days is January (20.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Williston, VT

Average daylight / Average sunshine - Williston, VT

The month with the longest days is June (Average daylight: 15h and 29min).
The month with the shortest days is December (Average daylight: 8h and 55min).

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 2h and 48min).

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Average sunshine days
Williston, VT

Average sunshine days - Williston, VT

The month with the most sunshine days is September (15.9 days).
The month with the least sunshine days is February (6.8 days).

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Average UV index
Williston, VT

Average UV index - Williston, VT

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

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Average visibility
Williston, VT

Average visibility - Williston, VT

The months with the highest visibility are April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February and March (4mi).

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