August weather forecastWynnburg, TN
August
Weather in August
The last month of the summer, August, is also a hot month in Wynnburg, Tennessee, with an average temperature varying between 68.5°F (20.3°C) and 86.4°F (30.2°C).Temperature
With the advent of August, Wynnburg experiences an average high-temperature of a still hot 86.4°F (30.2°C), mirroring a close resemblance to the previous month. During August, Wynnburg consistently records a temperature low averaging an agreeable 68.5°F (20.3°C).Heat index
August's heat index is evaluated at a sweltering 100.4°F (38°C). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.Given the heat index, its values are aligned with shaded sites and gentle winds. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. 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. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.
Humidity
March, May and August, with an average relative humidity of 78%, are the most humid months.Rainfall
In August, the rain falls for 15.4 days. Throughout August, 3.27" (83mm) of precipitation is accumulated. Throughout the year, there are 155.9 rainfall days, and 38.9" (988mm) of precipitation is accumulated.Snowfall
In Wynnburg, snow does not fall in April through October.Daylight
In August, the average length of the day is 13h and 30min.On the first day of the month, sunrise is at 6:05 am and sunset at 8:03 pm. On the last day of August, sunrise is at 6:29 am and sunset at 7:26 pm CDT.
Sunshine
The average sunshine in August is 10.3h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.Note: In August, a regular UV index of 6 translates into these guidelines:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Wynnburg, TN
- Average high temperature in August: 86.4°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (43.7°F).
- Average low temperature in August: 68.5°F
The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).
Average pressure in August
Wynnburg, TN
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in August
Wynnburg, TN
- Average wind speed in August: 5.7mph
The windiest month (with the highest average wind speed) is February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in August
Wynnburg, TN
- Average humidity in August: 78%
The months with the highest relative humidity are March, May and August (78%).
The month with the lowest relative humidity is October (68%).
Average rainfall in August
Wynnburg, TN
- Average rainfall in August: 3.27"
The wettest month (with the highest rainfall) is April (4.21").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days in August
Wynnburg, TN
- Average rainfall days in August: 15.4 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is November (9.1 days).
Average snowfall in August
Wynnburg, TN
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.38").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Wynnburg, TN
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (2.6 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Wynnburg, TN
- Average daylight in August: 13h and 30min
The month with the longest days is June (Average daylight: 14h and 36min).
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 June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in August
Wynnburg, TN
- Average sunshine days in August: 12.7 days
The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is July (11.5 days).
Average UV index in August
Wynnburg, TN
- Average UV index in August: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in August
Wynnburg, TN
- Average cloud cover in August: 27
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in August
Wynnburg, TN
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





