August weather forecastHiara Heights, TN
August
Weather in August
The last month of the summer, August, is another warm month in Hiara Heights, Tennessee, with temperature in the range of an average low of 60.6°F (15.9°C) and an average high of 85.3°F (29.6°C).Temperature
On the advent of August, Hiara Heights's average high-temperature exhibits a minor adjustment to a still warm 85.3°F (29.6°C) from July's 85.8°F (29.9°C). In August, a remarkable difference from daytime highs is noted, as Hiara Heights records an average temperature of 60.6°F (15.9°C) during the night.Heat index
Throughout August, the heat index is appraised at a very hot 95°F (35°C). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', provides an understanding of perceived warmth by combining temperature and relative humidity. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. 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 particularly important for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under 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
July through September and November, with an average relative humidity of 74%, are the least humid months.Rainfall
In August, in Hiara Heights, the rain falls for 13.9 days. Throughout August, 1.5" (38mm) of precipitation is accumulated. In Hiara Heights, during the entire year, the rain falls for 147.1 days and collects up to 23.46" (596mm) of precipitation.Snowfall
In Hiara Heights, snow does not fall in May through October.Daylight
The average length of the day in August in Hiara Heights is 13h and 31min.On the first day of August in Hiara Heights, sunrise is at 6:37 am and sunset at 8:36 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 7:59 pm EDT.
Sunshine
In Hiara Heights, the average sunshine in August is 10.5h.UV index
The months with the highest UV index in Hiara Heights are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.Note: In August, the maximum UV index of 6 suggests these recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Hiara Heights, TN
- Average high temperature in August: 85.3°F
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (42.4°F).
- Average low temperature in August: 60.6°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).
Average pressure in August
Hiara Heights, 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
Hiara Heights, TN
- Average wind speed in August: 3.8mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in August
Hiara Heights, TN
- Average humidity in August: 74%
The month with the highest relative humidity is February (79%).
The months with the lowest relative humidity are July, August, September and November (74%).
Average rainfall in August
Hiara Heights, TN
- Average rainfall in August: 1.5"
The wettest month (with the highest rainfall) is February (3.03").
The driest month (with the least rainfall) is September (0.98").
Average rainfall days in August
Hiara Heights, TN
- Average rainfall days in August: 13.9 days
The month with the highest number of rainy days is July (15.9 days).
The month with the least rainy days is November (8 days).
Average snowfall in August
Hiara Heights, TN
- Average snowfall in August: 0"
The month with the highest snowfall is January (1.57").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Hiara Heights, TN
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (5.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Hiara Heights, 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 30min
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 48min).
Average sunshine days in August
Hiara Heights, TN
- Average sunshine days in August: 14.3 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (11.9 days).
Average UV index in August
Hiara Heights, 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
Hiara Heights, TN
- Average cloud cover in August: 28
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in August
Hiara Heights, TN
- Average visibility in August: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).





