August weather forecastJefferson City, TN
August
Weather in August
The last month of the summer, August, is another tropical month in Jefferson City, Tennessee, with temperature in the range of an average low of 62.8°F (17.1°C) and an average high of 86.5°F (30.3°C).Temperature
Jefferson City, Tennessee, experiences a recorded average high-temperature of a still hot 86.5°F (30.3°C) in August, closely aligned with July's 87.3°F (30.7°C). Despite soaring daytime temperatures, Jefferson City registers a consistent average low-temperature of 62.8°F (17.1°C) in August.Heat index
The heat index value during August is calculated to be a torrid 96.8°F (36°C). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.Heat index guidelines indicate values are for light wind scenarios and shaded regions. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', marries air temperature and humidity to produce a value illustrating perceived warmth. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.
Humidity
The months with the lowest humidity in Jefferson City are July and August, with an average relative humidity of 72%.Rainfall
In Jefferson City, Tennessee, in August, during 11.8 rainfall days, 1.34" (34mm) of precipitation is typically accumulated. In Jefferson City, during the entire year, the rain falls for 135.1 days and collects up to 22.01" (559mm) of precipitation.Snowfall
In Jefferson City, snow does not fall in May through September.Daylight
In Jefferson City, Tennessee, the average length of the day in August is 13h and 29min.On the first day of August in Jefferson City, Tennessee, sunrise is at 6:41 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 8:02 pm EDT.
Sunshine
In August, the average sunshine is 10.4h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.Note: In August, the UV index of 6 transforms into the following advice:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. 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. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Jefferson City, TN
- Average high temperature in August: 86.5°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (45°F).
- Average low temperature in August: 62.8°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (28.6°F).
Average pressure in August
Jefferson City, TN
- Average pressure in August: 30.02"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in August
Jefferson City, TN
- Average wind speed in August: 3.7mph
The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in August
Jefferson City, TN
- Average humidity in August: 72%
The months with the highest relative humidity are February and December (78%).
The months with the lowest relative humidity are July and August (72%).
Average rainfall in August
Jefferson City, TN
- Average rainfall in August: 1.34"
The wettest month (with the highest rainfall) is February (2.8").
The driest month (with the least rainfall) is September (1.14").
Average rainfall days in August
Jefferson City, TN
- Average rainfall days in August: 11.8 days
The month with the highest number of rainy days is July (13.6 days).
The month with the least rainy days is October (8.5 days).
Average snowfall in August
Jefferson City, TN
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.5").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Jefferson City, TN
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (4.5 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
Jefferson City, 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 48min).
- Average sunshine in August: 10h and 24min
The months with the most sunshine are June and July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in August
Jefferson City, TN
- Average sunshine days in August: 17.4 days
The month with the most sunshine days is October (21.4 days).
The month with the least sunshine days is February (14.4 days).
Average UV index in August
Jefferson City, TN
- 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
Jefferson City, TN
- Average cloud cover in August: 26
The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are June and August (Cloud cover 26).
Average visibility in August
Jefferson City, 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).
