August weather forecast
Unionville, TN

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Weather in August

The last month of the summer, August, is another hot month in Unionville, Tennessee, with an average temperature fluctuating between 67.1°F (19.5°C) and 86.5°F (30.3°C).

Temperature

The unfolding of August shows an average high-temperature of a still tropical 86.5°F (30.3°C), indicating a slight variance from July's 87.3°F (30.7°C). In Unionville, August nights cool down to an average of 67.1°F (19.5°C).

Heat index

Throughout August, the heat index is evaluated at a fiery hot 100.4°F (38°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. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gauges the sensation of temperature factoring in the air's moisture content. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. 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 extremely vital to babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

In August, the average relative humidity is 77%.

Rainfall

In Unionville, in August, during 17.3 rainfall days, 3.78" (96mm) of precipitation is typically accumulated. Throughout the year, there are 167.2 rainfall days, and 38.78" (985mm) of precipitation is accumulated.

Snowfall

In Unionville, snow does not fall in May through October.

Daylight

The average length of the day in August is 13h and 28min.
On the first day of August, sunrise is at 5:55 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 7:14 pm CDT.

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 reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: In August, a daily maximum UV index of 6 leads to the following instructions:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Updated: Aug 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August?

In Unionville, 86.5°F (30.3°C) is the average high-temperature and 67.1°F (19.5°C) is the average low-temperature during August. In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is evaluated at 100.4°F (38°C).

What is the average humidity in August?

The average relative humidity in August is 77%.

How much does it rain in August?

In Unionville, in August, during 17.3 rainfall days, 3.78" (96mm) of precipitation is typically accumulated.

When it does not snow?

May through October are months without snowfall.

How many hours of daylight does Unionville have in August?

The average day length in August is 13h and 28min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 5:55 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 7:14 pm CDT.

How many hours of sunshine does Unionville have in August?

The average sunshine duration in August is 9.9h.

When is the highest UV index?

May through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index intensity in August?

The average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Unionville, TN

Average temperature in August - Unionville, TN
  • Average high temperature in August: 86.5°F

The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (45.5°F).

  • Average low temperature in August: 67.1°F

The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (31.3°F).

Average pressure in August
Unionville, TN

Average pressure in August - Unionville, 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 (29.97"Hg).

Average wind speed in August
Unionville, TN

Average wind speed in August - Unionville, TN
  • Average wind speed in August: 4.8mph

The windiest month (with the highest average wind speed) is February (8.5mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).

Average humidity in August
Unionville, TN

Average humidity in August - Unionville, TN
  • Average humidity in August: 77%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (74%).

Average rainfall in August
Unionville, TN

Average rainfall in August - Unionville, TN
  • Average rainfall in August: 3.78"

The wettest month (with the highest rainfall) is February (4.33").
The driest month (with the least rainfall) is September (2.09").

Average rainfall days in August
Unionville, TN

Average rainfall days in August - Unionville, TN
  • Average rainfall days in August: 17.3 days

The month with the highest number of rainy days is July (19.5 days).
The month with the least rainy days is November (8.9 days).

Average snowfall in August
Unionville, TN

Average snowfall in August - Unionville, 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
Unionville, TN

Average snowfall days in August - Unionville, TN
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (3.1 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
Unionville, TN

Average daylight in August / Average sunshine in August - Unionville, TN
  • Average daylight in August: 13h and 3min

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 5min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).

Average sunshine days in August
Unionville, TN

Average sunshine days in August - Unionville, TN
  • Average sunshine days in August: 12.1 days

The month with the most sunshine days is October (19.9 days).
The month with the least sunshine days is July (10.1 days).

Average UV index in August
Unionville, TN

Average UV index in August - Unionville, 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 and December (UV index 2).

Average cloud cover in August
Unionville, TN

Average cloud cover in August - Unionville, TN
  • Average cloud cover in August: 33

The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 31).

Average visibility in August
Unionville, TN

Average visibility in August - Unionville, TN
  • Average visibility in August: 6mi

The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).

Unionville, Tennessee, USA

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