Monthly weather forecast and climate
Williston, NY

January, the same as December, in Williston, New York, is a freezing cold winter month, with average temperature ranging between max 28.9°F (-1.7°C) and min 18.1°F (-7.7°C). The coldest month is January, with an average high-temperature of 28.9°F (-1.7°C) and an average low-temperature of 18.1°F (-7.7°C). Weather in January »

The last month of the winter, February, is another freezing cold month in Williston, New York, with average temperature varying between 31.3°F (-0.4°C) and 19.4°F (-7°C). In Williston, the average high-temperature is relatively the same as in January - a still freezing cold 31.3°F (-0.4°C). Weather in February »

The first month of the spring, March, is a cold month in Williston, New York, with average temperature ranging between min 26.6°F (-3°C) and max 40.6°F (4.8°C). In Williston, the average high-temperature in March increases, from a subzero cold 31.3°F (-0.4°C) in February, to a cold 40.6°F (4.8°C). Weather in March »

April in Williston, New York, is a cool spring month, with average temperature varying between 52.7°F (11.5°C) and 36°F (2.2°C). In April, the average high-temperature rises, from a wintry 40.6°F (4.8°C) in March, to a fresh 52.7°F (11.5°C). Weather in April »

The last month of the spring, May, is a comfortable month in Williston, New York, with average temperature fluctuating between 66.6°F (19.2°C) and 47.8°F (8.8°C). In May, the average high-temperature rises, from a fresh 52.7°F (11.5°C) in April, to an enjoyable 66.6°F (19.2°C). Weather in May »

The first month of the summer, June, is a pleasant month in Williston, New York, with average temperature fluctuating between 55°F (12.8°C) and 73.2°F (22.9°C). In June, the average high-temperature marginally rises, from an enjoyable 66.6°F (19.2°C) in May, to a pleasant 73.2°F (22.9°C). Weather in June »

July in Williston, New York, is a moderately hot summer month, with average temperature ranging between max 79.2°F (26.2°C) and min 61°F (16.1°C). The warmest month is July, with an average high-temperature of 79.2°F (26.2°C) and an average low-temperature of 61°F (16.1°C). Weather in July »

The last month of the summer, August, is also a moderately hot month in Williston, New York, with average temperature varying between 59.7°F (15.4°C) and 77.5°F (25.3°C). In August, the average high-temperature is essentially the same as in July - a still warm 77.5°F (25.3°C). Weather in August »

September, the first month of the autumn, in Williston, is also an agreeable month, with average temperature varying between 53.6°F (12°C) and 71.6°F (22°C). In September, the average high-temperature slightly decreases, from a moderately hot 77.5°F (25.3°C) in August, to an agreeable 71.6°F (22°C). Weather in September »

October, like September, is another mild autumn month in Williston, New York, with average temperature fluctuating between 44.4°F (6.9°C) and 57.9°F (14.4°C). In Williston, the average high-temperature in October drops, from a pleasant 71.6°F (22°C) in September, to a moderate 57.9°F (14.4°C). Weather in October »

November, the last month of the autumn, in Williston, is also a frosty month, with average temperature fluctuating between 45.5°F (7.5°C) and 33.1°F (0.6°C). In November, the average high-temperature drops, from a mild 57.9°F (14.4°C) in October, to a frosty 45.5°F (7.5°C). Weather in November »

December, the first month of the winter, in Williston, is also a wintry month, with average temperature ranging between max 34.9°F (1.6°C) and min 26.2°F (-3.2°C). In December, the average high-temperature decreases, from a frosty 45.5°F (7.5°C) in November, to a cold 34.9°F (1.6°C). Weather in December »

What is the coldest month in Williston?

January is the coldest month, with an average high-temperature of 28.9°F (-1.7°C) and an average low-temperature of 18.1°F (-7.7°C).

What are the most humid months in Williston?

Months with the highest humidity in Williston are January and February, with an average relative humidity of 87%.

How many days does it rain in Williston?

In Williston, during the entire year, the rain falls for 161.8 days and collects up to 21.93" (557mm) of precipitation.

When does it snow in Williston?

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

How many days does it snow in Williston?

In Williston, during the entire year, snow falls for 78.6 days, and aggregates up to 25.24" (641mm) of snow.

What is the month with the least sunshine in Williston?

The month with the least sunshine is January, with an average of 2.3h of sunshine.

What are the months with the lowest UV index in Williston?

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

What is the snowiest month in Williston?

February is the month with the most snowfall in Williston. Snow falls for 17.5 days and accumulates 6.61" (168mm) of snow.

What is the least humid month in Williston?

Months with the lowest humidity are May, July and August, with an average relative humidity of 77%.

What is the wettest month in Williston?

May is the month with the most rainfall in Williston, New York. Rain falls for 16.8 days and accumulates 2.44" (62mm) of precipitation.

When it does not snow in Williston?

In Williston snow does not fall in June through September.

When are the longest days in Williston?

With an average of 15.3h of daylight, June has the longest days of the year in Williston.

What is the warmest month in Williston?

July is the warmest month in Williston, with an average high-temperature of 79.2°F (26.2°C) and an average low-temperature of 61°F (16.1°C).

What month has the most sunshine in Williston?

July has the most sunshine of the year in Williston, with an average of 10.3h of sunshine.

When is the highest UV index in Williston?

July is the month with the highest UV index in Williston, New York, with an average maximum UV index of 6.

What is the driest month in Williston?

The month with the least rainfall in Williston, New York, is September when the rain falls for 14.3 days and typically collects 1.34" (34mm) of precipitation.

What is the month with the shortest days in Williston?

The month with the shortest days is December, with an average of 9.1h of daylight.
Average temperature - Williston, NY
Average pressure - Williston, NY

The month with the highest atmospheric pressure is November (30.09").
The month with the lowest atmospheric pressure is June (29.93").

Average wind speed - Williston, NY

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.4mph).

Average humidity - Williston, NY
Average rainfall - Williston, NY

The wettest month (with the highest rainfall) is May (2.44").
The driest month (with the least rainfall) is September (1.34").

Average rainfall days - Williston, NY

The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is February (6.8 days).

Average snowfall - Williston, NY
Average snowfall days - Williston, NY

The month with the highest number of snowfall days is January (19 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine - Williston, NY

The month with the longest days is June (Average daylight: 15.3h).
The month with the shortest days is December (Average daylight: 9.1h).

The month with the most sunshine is July (Average sunshine: 10.3h).
The month with the least sunshine is January (Average sunshine: 2.3h).

Average sunshine days - Williston, NY

The month with the most sunshine days is June (13.4 days).
The month with the least sunshine days is February (6.7 days).

Average visibility - Williston, NY

Months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
Months with the lowest visibility are January, February, March and December (5mi).