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
The transition from July to August sees average high-temperatures adjusting to a still hot 87.4°F (30.8°C), from a not significantly different 87.8°F (31°C). Significant variation from daytime temperatures marks August, with the month recording a nightly average of 65.8°F (18.8°C).Heat index
August's heat index is estimated at a sweltering 102.2°F (39°C). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.Realize that the values for the heat index are set for shaded places and light winds. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', gauges the sensation of temperature factoring in the air's moisture content. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly relevant to children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.
Humidity
The months with the lowest humidity are June through November, with an average relative humidity of 75%.Rainfall
In Mountainbrook, Tennessee, in August, it is raining for 14.8 days, with typically 2.44" (62mm) of accumulated precipitation. In Mountainbrook, during the entire year, the rain falls for 148 days and collects up to 23.9" (607mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Mountainbrook, the average length of the day in August is 13h and 26min.On the first day of the month, sunrise is at 6:49 am and sunset at 8:42 pm. On the last day of August, sunrise is at 7:11 am and sunset at 8:07 pm EDT.
Sunshine
In Mountainbrook, the average sunshine in August is 9.6h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.Note: The UV index of 6 during August translates into the following guidance:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Mountainbrook during August?
What is the least humid month in Mountainbrook?
What is the average humidity in August in Mountainbrook?
How many days does it rain in August in Mountainbrook?
When it does not snow in Mountainbrook?
How many hours of daylight does Mountainbrook have in August?
When are sunrise and sunset in August in Mountainbrook?
How many hours of sunshine does Mountainbrook have in August?
What is the month with the highest UV index in Mountainbrook?
What is the UV index reading in August in Mountainbrook?
Average temperature in August
Mountainbrook, TN
- Average high temperature in August: 87.4°F
The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (46.4°F).
- Average low temperature in August: 65.8°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).
Average pressure in August
Mountainbrook, TN
- Average pressure in August: 30.01"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in August
Mountainbrook, TN
- Average wind speed in August: 3.8mph
The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in August
Mountainbrook, TN
- Average humidity in August: 75%
The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are June, July, August, September, October and November (75%).
Average rainfall in August
Mountainbrook, TN
- Average rainfall in August: 2.44"
The wettest month (with the highest rainfall) is July (2.64").
The driest month (with the least rainfall) is September (1.3").
Average rainfall days in August
Mountainbrook, TN
- Average rainfall days in August: 14.8 days
The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is November (7.3 days).
Average snowfall in August
Mountainbrook, TN
- Average snowfall in August: 0"
The month with the highest snowfall is February (0.75").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Mountainbrook, TN
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (1.7 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
Mountainbrook, TN
- Average daylight in August: 13h and 2min
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 4min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in August
Mountainbrook, TN
- Average sunshine days in August: 12.9 days
The months with the most sunshine days are October and November (21.2 days).
The month with the least sunshine days is July (11.6 days).
Average UV index in August
Mountainbrook, 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
Mountainbrook, TN
- Average cloud cover in August: 31
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in August
Mountainbrook, TN
- Average visibility in August: 6mi
The months with the highest visibility are February, March, April, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, May and December (5mi).
Mountainbrook, Tennessee, USA
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