August weather forecastAltavista, VA
August
Weather in August
August, the last month of the summer in Altavista, is another hot month, with temperature in the range of an average high of 86.7°F (30.4°C) and an average low of 64.9°F (18.3°C).Temperature
The arrival of August denotes a barely perceptible change in the average high-temperatures to a still tropical 86.7°F (30.4°C) from July's 89.1°F (31.7°C). August presents a pronounced divergence from daily peak temperatures in Altavista, with the average low-temperature of 64.9°F (18.3°C).Heat index
August's average heat index is computed to be a very hot 98.6°F (37°C). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.The metrics for the heat index are tailored for both shady environments and light winds. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', arises from combining readings of air temperature and relative moisture content. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.
Humidity
In Altavista, the average relative humidity in August is 72%.Rainfall
In August, the rain falls for 15.3 days. Throughout August, 2.28" (58mm) of precipitation is accumulated. In Altavista, during the entire year, the rain falls for 158 days and collects up to 30.55" (776mm) of precipitation.Snowfall
May through September are months without snowfall in Altavista.Daylight
In August, the average length of the day in Altavista is 13h and 32min.On the first day of August in Altavista, sunrise is at 6:22 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 7:46 pm EDT.
Sunshine
The average sunshine in August in Altavista is 10.3h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index in Altavista. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 6 during August translates into the following directions:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Altavista, VA
- Average high temperature in August: 86.7°F
The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is January (43.5°F).
- Average low temperature in August: 64.9°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (28.6°F).
Average pressure in August
Altavista, VA
- Average pressure in August: 30.01"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in August
Altavista, VA
- Average wind speed in August: 4.3mph
The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in August
Altavista, VA
- Average humidity in August: 72%
The months with the highest relative humidity are May and December (76%).
The month with the lowest relative humidity is July (69%).
Average rainfall in August
Altavista, VA
- Average rainfall in August: 2.28"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in August
Altavista, VA
- Average rainfall days in August: 15.3 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in August
Altavista, VA
- Average snowfall in August: 0"
The month with the highest snowfall is January (2.28").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Altavista, VA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (3.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Altavista, VA
- Average daylight in August: 13h and 30min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in August: 10h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).
Average sunshine days in August
Altavista, VA
- Average sunshine days in August: 13.5 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (11 days).
Average UV index in August
Altavista, VA
- 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 and December (UV index 2).
Average cloud cover in August
Altavista, VA
- Average cloud cover in August: 33
The month with the most cloud cover is March (Cloud cover 43).
The months with the least cloud cover are June and July (Cloud cover 30).
Average visibility in August
Altavista, VA
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
