August weather forecastJonesborough, TN
August
Weather in August
The last month of the summer, August, is another warm month in Jonesborough, Tennessee, with an average temperature fluctuating between 59.5°F (15.3°C) and 82.8°F (28.2°C).Temperature
As August takes hold, the average high-temperature is a still moderately hot 82.8°F (28.2°C), nearly mirroring that of the previous month. In Jonesborough, August nights witness a remarkable decline from the day's zenith to a mild 59.5°F (15.3°C).Heat index
During August, the heat index is computed to be a hot 89.6°F (32°C). Persisting in activity during long-term exposure might induce weariness, with subsequent heat cramps.Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
Humidity
In August, the average relative humidity is 76%.Rainfall
In August, the rain falls for 15.9 days. Throughout August, 2.4" (61mm) of precipitation is accumulated. Throughout the year, there are 175.9 rainfall days, and 31.93" (811mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In Jonesborough, the average length of the day in August is 13h and 30min.On the first day of the month, sunrise is at 6:37 am and sunset at 8:35 pm. On the last day of August, sunrise is at 7:01 am and sunset at 7:58 pm EDT.
Sunshine
The average sunshine in August is 10.4h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.Note: A maximum UV index of 6 in August translates into the following recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Jonesborough, TN
- Average high temperature in August: 82.8°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (41.7°F).
- Average low temperature in August: 59.5°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (26.6°F).
Average pressure in August
Jonesborough, TN
- Average pressure in August: 30.02"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
Jonesborough, TN
- Average wind speed in August: 3.7mph
The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in August
Jonesborough, TN
- Average humidity in August: 76%
The months with the highest relative humidity are February and December (79%).
The month with the lowest relative humidity is November (75%).
Average rainfall in August
Jonesborough, TN
- Average rainfall in August: 2.4"
The wettest month (with the highest rainfall) is February (3.39").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in August
Jonesborough, TN
- Average rainfall days in August: 15.9 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is November (10.3 days).
Average snowfall in August
Jonesborough, TN
- Average snowfall in August: 0"
The month with the highest snowfall is December (3.74").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Jonesborough, TN
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Jonesborough, 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 24min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in August
Jonesborough, TN
- Average sunshine days in August: 11.7 days
The month with the most sunshine days is October (17.7 days).
The month with the least sunshine days is February (9.3 days).
Average UV index in August
Jonesborough, TN
- Average UV index in August: 6
The months with the highest UV index are 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
Jonesborough, TN
- Average cloud cover in August: 30
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in August
Jonesborough, TN
- Average visibility in August: 6mi
The months with the highest visibility are April, June, July, August, October and November (6mi).
The months with the lowest visibility are January, February, March, May, September and December (5mi).
