August weather forecast
Hillsboro, TN

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Weather in August

August, the last month of the summer in Hillsboro, is also a moderately hot month, with an average temperature varying between 66.2°F (19°C) and 85.6°F (29.8°C).

Temperature

August observes an average high-temperature of a moderately hot 85.6°F (29.8°C), marking an insignificant difference from July's 86.4°F (30.2°C). Throughout August, Hillsboro witnesses a nighttime temperature average of 66.2°F (19°C).

Heat index

During August, the heat index is computed to be a very hot 96.8°F (36°C). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

In August, the average relative humidity is 77%.

Rainfall

In August, in Hillsboro, the rain falls for 18.7 days. Throughout August, 3.98" (101mm) of precipitation is accumulated. Throughout the year, there are 183 rainfall days, and 43.19" (1097mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In August, the average length of the day is 13h and 27min.
On the first day of the month, sunrise is at 5:53 am and sunset at 7:47 pm. On the last day of August, sunrise is at 6:16 am and sunset at 7:11 pm CDT.

Sunshine

In Hillsboro, the average sunshine in August is 10h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index of 6 during August translates into these guidelines:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. 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. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Updated: Jun 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August?

In August, the average high-temperature and low-temperature are 85.6°F (29.8°C) and 66.2°F (19°C) respectively. The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, in August is computed to be 96.8°F (36°C).

What is the average humidity in August?

In August, the average relative humidity is 77%.

How many days does it rain in August?

In Hillsboro, in August, during 18.7 rainfall days, 3.98" (101mm) of precipitation is typically accumulated.

When it does not snow?

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

What is the average length of the day in August?

In August, the average day length is 13h and 27min.

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 5:53 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 7:11 pm CDT.

How many hours of sunshine does Hillsboro have in August?

In Hillsboro, the average sunshine duration in August is 10h.

When is the highest UV index?

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

How high is the UV index in August?

In Hillsboro, 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 the Sun's UV radiation.
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
Hillsboro, TN

Average temperature in August - Hillsboro, TN
  • Average high temperature in August: 85.6°F

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (45.1°F).

  • Average low temperature in August: 66.2°F

The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).

Average pressure in August
Hillsboro, TN

Average pressure in August - Hillsboro, 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
Hillsboro, TN

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

The windiest month (with the highest average wind speed) is February (8.1mph).
The calmest month (with the lowest average wind speed) is July (4.6mph).

Average humidity in August
Hillsboro, TN

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

The months with the highest relative humidity are March and December (80%).
The months with the lowest relative humidity are October and November (75%).

Average rainfall in August
Hillsboro, TN

Average rainfall in August - Hillsboro, TN
  • Average rainfall in August: 3.98"

The wettest month (with the highest rainfall) is July (4.72").
The driest month (with the least rainfall) is September (2.28").

Average rainfall days in August
Hillsboro, TN

Average rainfall days in August - Hillsboro, TN
  • Average rainfall days in August: 18.7 days

The month with the highest number of rainy days is July (21 days).
The month with the least rainy days is November (10.3 days).

Average snowfall in August
Hillsboro, TN

Average snowfall in August - Hillsboro, TN
  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.34").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Hillsboro, TN

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

The month with the highest number of snowfall days is January (5.2 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
Hillsboro, TN

Average daylight in August / Average sunshine in August - Hillsboro, 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 0min

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

Average sunshine days in August
Hillsboro, TN

Average sunshine days in August - Hillsboro, TN
  • Average sunshine days in August: 11 days

The month with the most sunshine days is October (17.8 days).
The month with the least sunshine days is July (8.1 days).

Average UV index in August
Hillsboro, TN

Average UV index in August - Hillsboro, 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
Hillsboro, TN

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

The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 31).

Average visibility in August
Hillsboro, TN

Average visibility in August - Hillsboro, TN
  • Average visibility in August: 5mi

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

Hillsboro, Tennessee, USA

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