August weather forecast
Jackson, TN

In August, Jackson, Tennessee experiences a slight dip in temperature from July, providing subtle hints of the approaching seasonal shift. The post-peak summer month retains considerable heat with an average high temperature of 87.4°F (30.8°C), making it the second-warmest month. Rainfall sees a decrease, signaling less frequent summer storms, while the wind speed experiences a minor bump. As daylight hours gradually decline, the UV index adjusts to a lower 6. By maintaining its warm, bright, and relatively dry personality, August leaves behind a lasting impression of the summer days.

Temperature

The onset of August marks an average high-temperature of a still hot 87.4°F (30.8°C), hardly differing from July's 87.6°F (30.9°C). Jackson experiences a consistent average temperature of 69.1°F (20.6°C) throughout the nights in August.

Heat index

The heat index value during August is evaluated at a sweltering 102.2°F (39°C). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
For clarity, heat index numbers account for light winds and areas under shade. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. 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

In Jackson, the average relative humidity in August is 76%.

Rainfall

In Jackson, Tennessee, in August, during 11.3 rainfall days, 1.38" (35mm) of precipitation is typically accumulated. Throughout the year, there are 125.3 rainfall days, and 15.47" (393mm) of precipitation is accumulated.

Snowfall

In Jackson, snow does not fall in April through October.

Daylight

In August, the average length of the day is 13h and 28min.
On the first day of the month, sunrise is at 6:04 am and sunset at 7:59 pm. On the last day of August, sunrise is at 6:27 am and sunset at 7:23 pm CDT.

Sunshine

In Jackson, the average sunshine in August is 10.4h.

UV index

The average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.
Note: In August, the maximum UV index of 6 translates into these guidelines:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.