August weather forecast
Heiskell, TN

The last month of the summer, August, is another tropical month in Heiskell, Tennessee, with an average temperature ranging between min 65.5°F (18.6°C) and max 88.2°F (31.2°C).

Temperature

Heiskell, Tennessee, marks the onset of August with an average high-temperature of a still tropical 88.2°F (31.2°C), subtly divergent from July's 88.9°F (31.6°C). A significant temperature decrease to an average a comfortable 65.5°F (18.6°C) characterizes Heiskell's nighttime temperatures during August.

Heat index

The heat index in August is calculated to be a fiery hot 100.4°F (38°C). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
Observations indicate that the heat index values are for shady locations with light wind. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

With an average relative humidity of 70%, August is the least humid month.

Rainfall

In Heiskell, during August, the rain falls for 14.3 days and regularly aggregates up to 2.01" (51mm) of precipitation. In Heiskell, Tennessee, during the entire year, the rain falls for 148.9 days and collects up to 29.57" (751mm) of precipitation.

Snowfall

May through October are months without snowfall in Heiskell, Tennessee.

Daylight

In Heiskell, the average length of the day in August is 13h and 29min.
On the first day of August, sunrise is at 6:44 am and sunset at 8:41 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 8:04 pm EDT.

Sunshine

The average sunshine in August is 9.9h.

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 exposure to the Sun's UV radiation for the average person.
Note: The maximum UV index of 6 during August translates into these guidelines:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.