August weather forecastSpring Valley, TN
August
Weather in August
August, the last month of the summer in Spring Valley, is another hot month, with an average temperature fluctuating between 87.4°F (30.8°C) and 65.8°F (18.8°C).Temperature
Spring Valley notes an average high-temperature of a still tropical 87.4°F (30.8°C) in August, displaying minor variation from July. Spring Valley's average low-temperature of 65.8°F (18.8°C) in August reflects a significant disparity from the daytime highs.Heat index
The heat index in August is appraised at a very hot 102.2°F (39°C). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense 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
The average relative humidity in August is 76%.Rainfall
In August, the rain falls for 9.9 days. Throughout August, 1.06" (27mm) of precipitation is accumulated. In Spring Valley, during the entire year, the rain falls for 104.5 days and collects up to 10.98" (279mm) of precipitation.Snowfall
April through November are months without snowfall in Spring Valley.Daylight
In August, the average length of the day in Spring Valley is 13h and 26min.On the first day of the month, sunrise is at 6:51 am and sunset at 8:44 pm. On the last day of August, in Spring Valley, sunrise is at 7:13 am and sunset at 8:08 pm EDT.
Sunshine
In Spring Valley, Tennessee, the average sunshine in August is 9.5h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index in Spring Valley, Tennessee. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: In August, a daily maximum UV index of 6 leads to the following instructions:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Spring Valley, TN
- Average high temperature in August: 87.4°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (46°F).
- Average low temperature in August: 65.8°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).
Average pressure in August
Spring Valley, TN
- Average pressure in August: 30"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in August
Spring Valley, TN
- Average wind speed in August: 3.8mph
The windiest month (with the highest average wind speed) is February (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in August
Spring Valley, TN
- Average humidity in August: 76%
The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are June, October and November (75%).
Average rainfall in August
Spring Valley, TN
- Average rainfall in August: 1.06"
The wettest months (with the highest rainfall) are February and December (1.18").
The driest month (with the least rainfall) is September (0.43").
Average rainfall days in August
Spring Valley, TN
- Average rainfall days in August: 9.9 days
The month with the highest number of rainy days is July (11.7 days).
The month with the least rainy days is October (6.1 days).
Average snowfall in August
Spring Valley, TN
- Average snowfall in August: 0"
The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in August
Spring Valley, TN
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Spring Valley, TN
- Average daylight in August: 13h and 24min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in August: 9h and 30min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in August
Spring Valley, TN
- Average sunshine days in August: 19.2 days
The month with the most sunshine days is October (23.6 days).
The month with the least sunshine days is July (16.8 days).
Average UV index in August
Spring Valley, 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
Spring Valley, TN
- Average cloud cover in August: 32
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in August
Spring Valley, TN
- Average visibility in August: 5mi
The months with the highest visibility are June, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, July, August, September and December (5mi).





