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
Entering August, the average high-temperature is recorded at a still tropical 88.5°F (31.4°C), exhibiting a minimal shift from July's 89.2°F (31.8°C). Roanoke experiences an average temperature drop to an agreeable 69.6°F (20.9°C) during August nights.Heat index
In August, the heat index is evaluated at a blistering 104°F (40°C). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.Heat index guidelines indicate values are for light wind scenarios and shaded regions. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and 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 remain especially vital for babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.
Humidity
In August, the average relative humidity in Roanoke is 75%.Rainfall
August is the month with the most rainfall in Roanoke. Rain falls for 21.9 days and accumulates 4.06" (103mm) of precipitation.Snowfall
April through November are months without snowfall.Daylight
The average length of the day in August is 13h and 20min.On the first day of the month, sunrise is at 5:55 am and sunset at 7:40 pm. On the last day of August, sunrise is at 6:15 am and sunset at 7:07 pm CDT.
Sunshine
The average sunshine in August is 10.1h.UV index
May through 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 threat to health from exposure to the Sun's UV rays for average individuals.Note: In August, the average maximum UV index of 6 translates into the following recommendations:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Frequently asked questions
Is it hot in Roanoke during August?
What is the average humidity in August in Roanoke?
What is the wettest month in Roanoke?
How much does it rain in Roanoke in August?
When it does not snow in Roanoke?
How many hours of daylight does Roanoke have in August?
What time are sunrise and sunset in August in Roanoke?
How many hours of sunshine does Roanoke have in August?
What are the months with the highest UV index in Roanoke?
How high is the UV index in August in Roanoke?
Average temperature in August
Roanoke, AL
- Average high temperature in August: 88.5°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (52°F).
- Average low temperature in August: 69.6°F
The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (35.4°F).
Average pressure in August
Roanoke, AL
- Average pressure in August: 29.99"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in August
Roanoke, AL
- Average wind speed in August: 4.4mph
The windiest month (with the highest average wind speed) is January (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.4mph).
Average humidity in August
Roanoke, AL
- Average humidity in August: 75%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (72%).
Average rainfall in August
Roanoke, AL
- Average rainfall in August: 4.06"
The wettest month (with the highest rainfall) is August (4.06").
The driest month (with the least rainfall) is October (1.93").
Average rainfall days in August
Roanoke, AL
- Average rainfall days in August: 21.9 days
The month with the highest number of rainy days is July (22.7 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in August
Roanoke, AL
- Average snowfall in August: 0"
The month with the highest snowfall is January (0.47").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in August
Roanoke, AL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (1.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Roanoke, AL
- Average daylight in August: 13h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in August: 10h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 5h and 0min).
Average sunshine days in August
Roanoke, AL
- Average sunshine days in August: 8.2 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (7.5 days).
Average UV index in August
Roanoke, AL
- Average UV index in August: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in August
Roanoke, AL
- Average cloud cover in August: 35
The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 31).
Average visibility in August
Roanoke, AL
- Average visibility in August: 5mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Roanoke, Alabama, USA
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