August weather forecast
Chapel Hill, TN

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Weather in August

The last month of the summer, August, is another tropical month in Chapel Hill, Tennessee, with an average temperature fluctuating between 86.5°F (30.3°C) and 67.5°F (19.7°C).

Temperature

Chapel Hill experiences an average high-temperature of a still hot 86.5°F (30.3°C) with the onset of August, subtly varied from July's 87.4°F (30.8°C). Chapel Hill throughout August, records an average low-temperature of 67.5°F (19.7°C).

Heat index

August's average heat index is calculated to be a fiery hot 98.6°F (37°C). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
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 tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

The average relative humidity in August in Chapel Hill, Tennessee, is 76%.

Rainfall

In Chapel Hill, during August, the rain falls for 17.5 days and regularly aggregates up to 3.7" (94mm) of precipitation. In Chapel Hill, during the entire year, the rain falls for 173.6 days and collects up to 39.65" (1007mm) of precipitation.

Snowfall

May through October are months without snowfall in Chapel Hill.

Daylight

In August, the average length of the day is 13h and 28min.
On the first day of the month, sunrise is at 5:55 am and sunset at 7:50 pm. On the last day of August, sunrise is at 6:18 am and sunset at 7:15 pm CDT.

Sunshine

In August, the average sunshine is 10.1h.

UV index

The months with the highest UV index in Chapel Hill, Tennessee, 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 unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index of 6 during August translates into the following directions:
Deflect overexposure. Sun protection is a necessity. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in Chapel Hill in August?

The average high-temperature, in August, in Chapel Hill, is 86.5°F (30.3°C), while the average low-temperature is 67.5°F (19.7°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 98.6°F (37°C).

What is the average humidity in August in Chapel Hill?

The average relative humidity in August is 76%.

How many days does it rain in August in Chapel Hill?

In August, in Chapel Hill, the rain falls for 17.5 days. Throughout August, 3.7" (94mm) of precipitation is accumulated.

When it does not snow in Chapel Hill?

In Chapel Hill, Tennessee, snow does not fall in May through October.

What is the average length of the day in August in Chapel Hill?

In August, the average day length in Chapel Hill is 13h and 28min.

When is the sunrise / sunset in August in Chapel Hill?

In August, on the first day of the month, 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 7:15 pm CDT.

How long on average sun shines in August in Chapel Hill?

In August, the average sunshine duration in Chapel Hill is 10.1h.

What are the months with the highest UV index in Chapel Hill?

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

What is the UV index reading in August in Chapel Hill?

In Chapel Hill, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health threat from 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
Chapel Hill, TN

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

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (45.7°F).

  • Average low temperature in August: 67.5°F

The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (31.3°F).

Average pressure in August
Chapel Hill, TN

Average pressure in August - Chapel Hill, TN
  • Average pressure in August: 29.99"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
Chapel Hill, TN

Average wind speed in August - Chapel Hill, TN
  • Average wind speed in August: 4.7mph

The windiest month (with the highest average wind speed) is February (8.6mph).
The calmest month (with the lowest average wind speed) is July (4.6mph).

Average humidity in August
Chapel Hill, TN

Average humidity in August - Chapel Hill, TN
  • Average humidity in August: 76%

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

Average rainfall in August
Chapel Hill, TN

Average rainfall in August - Chapel Hill, TN
  • Average rainfall in August: 3.7"

The wettest month (with the highest rainfall) is February (4.37").
The driest month (with the least rainfall) is September (2.24").

Average rainfall days in August
Chapel Hill, TN

Average rainfall days in August - Chapel Hill, TN
  • Average rainfall days in August: 17.5 days

The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is November (9.5 days).

Average snowfall in August
Chapel Hill, TN

Average snowfall in August - Chapel Hill, TN
  • Average snowfall in August: 0"

The month with the highest snowfall is February (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Chapel Hill, TN

Average snowfall days in August - Chapel Hill, TN
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (2.6 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
Chapel Hill, TN

Average daylight in August / Average sunshine in August - Chapel Hill, 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: 10h and 1min

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 30min).

Average sunshine days in August
Chapel Hill, TN

Average sunshine days in August - Chapel Hill, TN
  • Average sunshine days in August: 11.8 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is July (9.9 days).

Average UV index in August
Chapel Hill, TN

Average UV index in August - Chapel Hill, TN
  • Average UV index in August: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).

Average cloud cover in August
Chapel Hill, TN

Average cloud cover in August - Chapel Hill, TN
  • Average cloud cover in August: 32

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in August
Chapel Hill, TN

Average visibility in August - Chapel Hill, 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).

Chapel Hill, Tennessee, USA

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