Climate and monthly weather forecast
Williamsville, NY

Weather in January

January, like December, is another subzero cold winter month in Williamsville, New York, with an average temperature varying between 29.3°F (-1.5°C) and 18.7°F (-7.4°C). With an average high-temperature of 29.3°F (-1.5°C) and an average low-temperature of 18.7°F (-7.4°C), January is the coldest month. Weather in January »

Weather in February

February, the last month of the winter in Williamsville, is also a subzero cold month, with temperature in the range of an average high of 31.3°F (-0.4°C) and an average low of 19.8°F (-6.8°C). In February, the average high-temperature is essentially the same as in January - a still freezing cold 31.3°F (-0.4°C). Weather in February »

Weather in March

The first month of the spring, March, is a wintry month in Williamsville, New York, with an average temperature varying between 40.6°F (4.8°C) and 27.5°F (-2.5°C). In Williamsville, the average high-temperature in March rises from a subzero cold 31.3°F (-0.4°C) in February to a cold 40.6°F (4.8°C). Weather in March »

Weather in April

April in Williamsville, New York, is a fresh spring month, with an average temperature ranging between max 52.7°F (11.5°C) and min 36.5°F (2.5°C). In Williamsville, the average high-temperature in April increases from a cold 40.6°F (4.8°C) in March to a cool 52.7°F (11.5°C). Weather in April »

Weather in May

The last month of the spring, May, is an enjoyable month in Williamsville, New York, with an average temperature fluctuating between 66°F (18.9°C) and 48°F (8.9°C). In Williamsville, the average high-temperature in May increases from a cool 52.7°F (11.5°C) in April to an enjoyable 66°F (18.9°C). Weather in May »

Weather in June

June, the first month of the summer in Williamsville, is an agreeable month, with an average temperature fluctuating between 73.2°F (22.9°C) and 55.9°F (13.3°C). In June, the average high-temperature marginally rises from an enjoyable 66°F (18.9°C) in May to an agreeable 73.2°F (22.9°C). Weather in June »

Weather in July

July in Williamsville, New York, is a moderately hot summer month, with an average temperature varying between 79.3°F (26.3°C) and 62.2°F (16.8°C). July is the warmest month, with an average high-temperature of 79.3°F (26.3°C) and an average low-temperature of 62.2°F (16.8°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Williamsville, New York, with an average temperature ranging between max 78.1°F (25.6°C) and min 61.3°F (16.3°C). In Williamsville, the average high-temperature in August is almost the same as in July - a still moderately hot 78.1°F (25.6°C). Weather in August »

Weather in September

September, the first month of the autumn in Williamsville, is also an agreeable month, with an average temperature fluctuating between 55°F (12.8°C) and 71.8°F (22.1°C). In September, the average high-temperature marginally drops from a warm 78.1°F (25.6°C) in August to an agreeable 71.8°F (22.1°C). Weather in September »

Weather in October

October, like September, is another mild autumn month in Williamsville, New York, with an average temperature fluctuating between 45.5°F (7.5°C) and 58.5°F (14.7°C). In October, the average high-temperature decreases from an agreeable 71.8°F (22.1°C) in September to a moderate 58.5°F (14.7°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Williamsville, New York, with temperature in the range of an average high of 45.5°F (7.5°C) and an average low of 34.2°F (1.2°C). In November, the average high-temperature drops from a mild 58.5°F (14.7°C) in October to a chilly 45.5°F (7.5°C). Weather in November »

Weather in December

December, the first month of the winter in Williamsville, is also a wintry month, with an average temperature ranging between max 35.4°F (1.9°C) and min 27°F (-2.8°C). In December, the average high-temperature drops from a frosty 45.5°F (7.5°C) in November to a cold 35.4°F (1.9°C). Weather in December »
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FAQ

What is the coldest month in Williamsville?

With an average high-temperature of 29.3°F (-1.5°C) and an average low-temperature of 18.7°F (-7.4°C), January is the coldest month in Williamsville, New York.

What is the most humid month in Williamsville?

January and February, with an average relative humidity of 86%, are most humid months.

How much does it rain in Williamsville?

In Williamsville, New York, during the entire year, the rain falls for 139.2 days and collects up to 14.84" (377mm) of precipitation.

When does it snow in Williamsville?

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

What is the snowiest month in Williamsville?

The months with the most snowfall are January and February, with an average 2.95" (75mm) of accumulated snow.

How many days does it snow in Williamsville?

Throughout the year, in Williamsville, there are 62.1 snowfall days, and 12.68" (322mm) of snow is accumulated.

What is the month with the least sunshine in Williamsville?

The month with the least sunshine in Williamsville is January, with an average of 2.4h of sunshine.

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

January, February and December, with an average maximum UV index of 1, are months with the lowest UV index in Williamsville, New York.

When is Daylight Saving Time (DST) in Williamsville?

On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts in Williamsville, New York, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 5. 2023, at 2:00 am, and the time zone reverts from EDT to EST.

When it does not snow in Williamsville?

June through September are months without snowfall in Williamsville, New York.

When are the longest days in Williamsville?

With an average of 15h and 18min of daylight, June has the longest days of the year in Williamsville, New York.

What is the warmest month in Williamsville?

With an average high-temperature of 79.3°F (26.3°C) and an average low-temperature of 62.2°F (16.8°C), July is the warmest month.

What are the least humid months in Williamsville?

July and August, with an average relative humidity of 75%, are the least humid months.

What is the wettest month in Williamsville?

July is the month with the most rainfall in Williamsville. Rain falls for 15.8 days and accumulates 1.61" (41mm) of precipitation.

What are the months with the most sunshine in Williamsville?

July and August, with an average of 10.4h of sunshine, are months with the most sunshine.

When is the highest UV index in Williamsville?

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

What is the driest month in Williamsville?

The month with the least rainfall in Williamsville is September, when the rain falls for 11.3 days and typically collects 0.91" (23mm) of precipitation.

What is the month with the shortest days in Williamsville?

December has the shortest days of the year in Williamsville, New York, with an average of 9h and 4min of daylight.

Average temperature
Williamsville, NY

Average temperature - Williamsville, NY

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (29.3°F).

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).

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Average pressure
Williamsville, NY

Average pressure - Williamsville, NY

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

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Average wind speed
Williamsville, NY

Average wind speed - Williamsville, NY

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).

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Average humidity
Williamsville, NY

Average humidity - Williamsville, NY

The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are July and August (75%).

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Average rainfall
Williamsville, NY

Average rainfall - Williamsville, NY

The wettest month (with the highest rainfall) is July (1.61").
The driest month (with the least rainfall) is September (0.91").

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Average rainfall days
Williamsville, NY

Average rainfall days - Williamsville, NY

The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is February (6.4 days).

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Average snowfall
Williamsville, NY

Average snowfall - Williamsville, NY

The months with the highest snowfall are January and February (2.95").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Williamsville, NY

Average snowfall days - Williamsville, NY

The month with the highest number of snowfall days is January (15.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Williamsville, NY

Average daylight / Average sunshine - Williamsville, NY

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 4min).

The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).

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Average sunshine days
Williamsville, NY

Average sunshine days - Williamsville, NY

The month with the most sunshine days is September (15.5 days).
The month with the least sunshine days is February (10.2 days).

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Average visibility
Williamsville, NY

Average visibility - Williamsville, NY

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

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