August weather forecastEffna, VA
August
Weather in August
The last month of the summer, August, is another warm month in Effna, Virginia, with an average temperature varying between 80.6°F (27°C) and 57.6°F (14.2°C).Temperature
July's transformation into August witnesses an average high-temperature of a still moderately hot 80.6°F (27°C), noting a minor change from the preceding month. Effna logs a notable disparity from the daily highs during August, as the nighttime temperature lowers to an average of 57.6°F (14.2°C).Heat index
In August, the average heat index is appraised at 84.2°F (29°C). If exposure and activity are sustained, they might cause a feeling of weariness, resulting in heat cramps.Heat index specifics point out values are for conditions of shade and a slight breeze. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'real feel' or 'felt air temperature', determines the feeling of heat when you account for the relative humidity. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. 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 essentially critical for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
Humidity
In August, the average relative humidity is 77%.Rainfall
In August, in Effna, the rain falls for 18.1 days. Throughout August, 2.24" (57mm) of precipitation is accumulated. In Effna, Virginia, during the entire year, the rain falls for 180.1 days and collects up to 28.86" (733mm) of precipitation.Snowfall
June through September are months without snowfall in Effna, Virginia.Daylight
In August, the average length of the day is 13h and 32min.On the first day of the month, sunrise is at 6:30 am and sunset at 8:31 pm. On the last day of August, in Effna, sunrise is at 6:55 am and sunset at 7:54 pm EDT.
Sunshine
In August, the average sunshine is 10h.UV index
The months with the highest UV index in Effna are May through August, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: In August, the maximum UV index of 5 suggests this advice:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Effna, VA
- Average high temperature in August: 80.6°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (38.3°F).
- Average low temperature in August: 57.6°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).
Average pressure in August
Effna, VA
- Average pressure in August: 30.03"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in August
Effna, VA
- Average wind speed in August: 4.3mph
The windiest months (with the highest average wind speed) are January and February (8mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in August
Effna, VA
- Average humidity in August: 77%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is July (76%).
Average rainfall in August
Effna, VA
- Average rainfall in August: 2.24"
The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in August
Effna, VA
- Average rainfall days in August: 18.1 days
The month with the highest number of rainy days is May (21.2 days).
The month with the least rainy days is January (10 days).
Average snowfall in August
Effna, VA
- Average snowfall in August: 0"
The month with the highest snowfall is December (6.3").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Effna, VA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (12.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Effna, 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 0min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in August
Effna, VA
- Average sunshine days in August: 10.8 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is May (7.1 days).
Average UV index in August
Effna, VA
- Average UV index in August: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Effna, VA
- Average cloud cover in August: 38
The months with the most cloud cover are January and February (Cloud cover 57).
The months with the least cloud cover are June, July and August (Cloud cover 38).
Average visibility in August
Effna, VA
- Average visibility in August: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (5mi).
The month with the lowest visibility is September (4mi).
