Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
Sun Valley's shift from July to August is accompanied by an average high-temperature of a still tropical 86.2°F (30.1°C), a slight deviation from 86.5°F (30.3°C). Despite the stark contrast with daytime temperatures, Sun Valley's August nights average at a refreshing 64.4°F (18°C).Heat index
The average heat index in August is evaluated at a sweltering 98.6°F (37°C). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.
Humidity
In August, the average relative humidity in Sun Valley is 77%.Rainfall
In August, the rain falls for 16.9 days. Throughout August, 3.07" (78mm) of precipitation is accumulated. Throughout the year, there are 173.9 rainfall days, and 38.31" (973mm) of precipitation is accumulated.Snowfall
In Sun Valley, snow does not fall in May through October.Daylight
In August, the average length of the day is 13h and 29min.On the first day of August, sunrise is at 5:49 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 6:13 am and sunset at 7:10 pm CDT.
Sunshine
The average sunshine in August in Sun Valley is 10.3h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In August, an average UV index of 6 transforms into the following instructions:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is August?
What is the average humidity in August?
How many days does it rain in August?
When it does not snow?
How many hours of daylight does Sun Valley have in August?
When are sunrise and sunset in August?
How many hours of sunshine does Sun Valley have in August?
What is the month with the highest UV index?
How high is the UV index in August?
Average temperature in August
Sun Valley, TN
- Average high temperature in August: 86.2°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (43.5°F).
- Average low temperature in August: 64.4°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (29.3°F).
Average pressure in August
Sun Valley, TN
- Average pressure in August: 30"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in August
Sun Valley, TN
- Average wind speed in August: 4.3mph
The windiest month (with the highest average wind speed) is February (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.3mph).
Average humidity in August
Sun Valley, TN
- Average humidity in August: 77%
The months with the highest relative humidity are February, March and December (79%).
The month with the lowest relative humidity is November (75%).
Average rainfall in August
Sun Valley, TN
- Average rainfall in August: 3.07"
The wettest month (with the highest rainfall) is February (4.09").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in August
Sun Valley, TN
- Average rainfall days in August: 16.9 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is November (10.8 days).
Average snowfall in August
Sun Valley, TN
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.02").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Sun Valley, TN
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (4.6 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
Sun Valley, TN
- Average daylight in August: 13h and 3min
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 2min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in August
Sun Valley, TN
- Average sunshine days in August: 11.8 days
The month with the most sunshine days is October (18.2 days).
The months with the least sunshine days are February and July (11.3 days).
Average UV index in August
Sun 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
Sun Valley, TN
- Average cloud cover in August: 31
The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in August
Sun Valley, TN
- Average visibility in August: 5mi
The months with the highest visibility are February, March, April, June, October, November and December (6mi).
The months with the lowest visibility are January, May, July, August and September (5mi).
Sun Valley, Tennessee, USA
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