August weather forecast
Williamsville, NY

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Weather in August

The last month of the summer, August, is also a moderately hot month in Williamsville, New York, with an average temperature fluctuating between 61.3°F (16.3°C) and 78.1°F (25.6°C).

Temperature

As Williamsville transitions from July to August, the average high-temperatures adjust to a still warm 78.1°F (25.6°C), nearly the same as the previous 79.3°F (26.3°C). Throughout the August nights, Williamsville encounters a low-temperature of 61.3°F (16.3°C).

Humidity

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

Rainfall

In Williamsville, in August, it is raining for 14.4 days, with typically 1.26" (32mm) of accumulated precipitation. In Williamsville, during the entire year, the rain falls for 139.2 days and collects up to 14.84" (377mm) of precipitation.

Snowfall

In Williamsville, snow does not fall in June through September.

Daylight

In August, the average length of the day in Williamsville, New York, is 13h and 53min.
On the first day of the month, sunrise is at 6:06 am and sunset at 8:35 pm. On the last day of August, sunrise is at 6:39 am and sunset at 7:50 pm EDT.

Sunshine

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

UV index

In August, the average daily maximum UV index in Williamsville is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 5 during August translates into the following guidance:
Adopt protective measures - It is advised to guard against sun damage. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are August temperatures in Williamsville?

An average high-temperature, in August, in Williamsville, is 78.1°F (25.6°C) and the average low-temperature is 61.3°F (16.3°C).

What is the least humid month in Williamsville?

The months with the lowest humidity in Williamsville are July and August, with an average relative humidity of 75%.

What is the average humidity in August in Williamsville?

In Williamsville, New York, the average relative humidity in August is 75%.

How many days does it rain in August in Williamsville?

In August, the rain falls for 14.4 days. Throughout August, 1.26" (32mm) of precipitation is accumulated.

When it does not snow in Williamsville?

In Williamsville, New York, snow does not fall in June through September.

How many hours of daylight does Williamsville have in August?

The average day length in August in Williamsville, New York, is 13h and 53min.

When is the sunrise / sunset in August in Williamsville?

On the first day of August in Williamsville, sunrise is at 6:06 am and sunset at 8:35 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 7:50 pm EDT.

What are the months with the most sunshine in Williamsville?

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

How long on average sun shines in August in Williamsville?

The average sunshine duration in August in Williamsville, New York, is 10.4h.

What is the UV index reading in August in Williamsville?

In Williamsville, New York, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Williamsville, NY

Average temperature in August - Williamsville, NY
  • Average high temperature in August: 78.1°F

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).

  • Average low temperature in August: 61.3°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).

Average pressure in August
Williamsville, NY

Average pressure in August - Williamsville, NY
  • Average pressure in August: 29.97"Hg

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

Average wind speed in August
Williamsville, NY

Average wind speed in August - Williamsville, NY
  • Average wind speed in August: 6.6mph

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).

Average humidity in August
Williamsville, NY

Average humidity in August - Williamsville, NY
  • Average humidity in August: 75%

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

Average rainfall in August
Williamsville, NY

Average rainfall in August - Williamsville, NY
  • Average rainfall in August: 1.26"

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

Average rainfall days in August
Williamsville, NY

Average rainfall days in August - Williamsville, NY
  • Average rainfall days in August: 14.4 days

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).

Average snowfall in August
Williamsville, NY

Average snowfall in August - Williamsville, NY
  • Average snowfall in August: 0"

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").

Average snowfall days in August
Williamsville, NY

Average snowfall days in August - Williamsville, NY
  • Average snowfall days in August: 0 days

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).

Average daylight in August /
Average sunshine in August
Williamsville, NY

Average daylight in August / Average sunshine in August - Williamsville, NY
  • Average daylight in August: 13h and 5min

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 6min).

  • Average sunshine in August: 10h and 2min

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).

Average sunshine days in August
Williamsville, NY

Average sunshine days in August - Williamsville, NY
  • Average sunshine days in August: 13.3 days

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

Average UV index in August
Williamsville, NY

Average UV index in August - Williamsville, NY
  • Average UV index in August: 5

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and December (UV index 1).

Average cloud cover in August
Williamsville, NY

Average cloud cover in August - Williamsville, NY
  • Average cloud cover in August: 29

The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in August
Williamsville, NY

Average visibility in August - Williamsville, NY
  • Average visibility in August: 6mi

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).

Williamsville, New York, USA

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