Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
As Roanoke welcomes August, the average high-temperature records at a still warm 82.4°F (28°C), marking an insignificant deviation from the prior month. Roanoke reports a substantial plunge from daytime highs during the nights of August, with an average low-temperature of 59.5°F (15.3°C).Heat index
August's heat index is computed to be a tropical 89.6°F (32°C). Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Humidity
August is the least humid month, with an average relative humidity of 76%.Rainfall
In Roanoke, in August, during 15.8 rainfall days, 2.44" (62mm) of precipitation is typically accumulated. Throughout the year, in Roanoke, there are 182.8 rainfall days, and 38.62" (981mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In August, the average length of the day is 13h and 38min.On the first day of the month, sunrise is at 6:23 am and sunset at 8:32 pm. On the last day of August, in Roanoke, sunrise is at 6:50 am and sunset at 7:53 pm EDT.
Sunshine
With an average of 10.1h of sunshine, August has the most sunshine of the year in Roanoke.UV index
May, July and August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.Note: In August, a regular UV index of 6 translates into these guidelines:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Frequently asked questions
Is it hot in Roanoke during August?
What is the least humid month in Roanoke?
What is the average humidity in August in Roanoke?
How many days does it rain in August in Roanoke?
When it does not snow in Roanoke?
What is the average length of the day in August in Roanoke?
When are sunrise and sunset in August in Roanoke?
What month has the most sunshine in Roanoke?
How many hours of sunshine does Roanoke have in August?
When is the highest UV index in Roanoke?
What is the UV index intensity in August in Roanoke?
Average temperature in August
Roanoke, WV
- Average high temperature in August: 82.4°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in August: 59.5°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in August
Roanoke, WV
- Average pressure in August: 30.01"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in August
Roanoke, WV
- Average wind speed in August: 4.1mph
The windiest months (with the highest average wind speed) are January and February (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity in August
Roanoke, WV
- Average humidity in August: 76%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is August (76%).
Average rainfall in August
Roanoke, WV
- Average rainfall in August: 2.44"
The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in August
Roanoke, WV
- Average rainfall days in August: 15.8 days
The month with the highest number of rainy days is May (20.8 days).
The month with the least rainy days is November (11.4 days).
Average snowfall in August
Roanoke, WV
- Average snowfall in August: 0"
The month with the highest snowfall is January (8.15").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Roanoke, WV
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (16.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Roanoke, WV
- Average daylight in August: 13h and 4min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in August: 10h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in August
Roanoke, WV
- Average sunshine days in August: 12.6 days
The month with the most sunshine days is October (14.1 days).
The months with the least sunshine days are January and February (7.6 days).
Average UV index in August
Roanoke, WV
- Average UV index in August: 6
The months with the highest UV index are May, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Roanoke, WV
- Average cloud cover in August: 35
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in August
Roanoke, WV
- Average visibility in August: 5mi
The month with the highest visibility is November (6mi).
The months with the lowest visibility are January and February (4mi).
Roanoke, West Virginia, USA
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