August weather forecast
Harriman, TN

Share

Weather in August

The last month of the summer, August, is another warm month in Harriman, Tennessee, with an average temperature ranging between min 63.9°F (17.7°C) and max 85.8°F (29.9°C).

Temperature

The introduction of August notes a subtle temperature variation to a moderately hot 85.8°F (29.9°C) from July's 86.5°F (30.3°C). Harriman experiences a dramatic descent in temperature during August, with the average nighttime reading settling at an enjoyable 63.9°F (17.7°C).

Heat index

In August, the average heat index is appraised at a torrid 96.8°F (36°C). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'feels like' or 'real feel', reflects the blend of air temperature and relative humidity to give a temperature impression. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

The months with the lowest humidity are June, August, October and November, with an average relative humidity of 76%.

Rainfall

In Harriman, Tennessee, during August, the rain falls for 16.7 days and regularly aggregates up to 2.76" (70mm) of precipitation. In Harriman, Tennessee, during the entire year, the rain falls for 169.5 days and collects up to 34.09" (866mm) of precipitation.

Snowfall

May through October are months without snowfall in Harriman.

Daylight

The average length of the day in August in Harriman is 13h and 29min.
On the first day of August, sunrise is at 6:46 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 8:06 pm EDT.

Sunshine

The average sunshine in August is 9.5h.

UV index

The months with the highest UV index in Harriman, Tennessee, are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The average daily UV index of 6 in August transforms into the following instructions:
Deter overexposure. Protecting against the sun's effects is essential. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
[Resources]

Frequently asked questions

How hot is August in Harriman?

In Harriman, in August, the average high-temperature is 85.8°F (29.9°C), and the average low-temperature is 63.9°F (17.7°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, in August is appraised at 96.8°F (36°C).

What is the least humid month in Harriman?

The months with the lowest humidity in Harriman are June, August, October and November, with an average relative humidity of 76%.

What is the average humidity in August in Harriman?

The average relative humidity in August is 76%.

How much does it rain in Harriman in August?

In Harriman, during August, the rain falls for 16.7 days and regularly aggregates up to 2.76" (70mm) of precipitation.

When it does not snow in Harriman?

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

What is the average length of the day in August in Harriman?

The average day length in August in Harriman is 13h and 29min.

When are sunrise and sunset in August in Harriman?

In August, on the first day of the month, sunrise is at 6:46 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 8:06 pm EDT.

How long on average sun shines in August in Harriman?

The average sunshine duration in August in Harriman, Tennessee, is 9.5h.

What are the months with the highest UV index in Harriman?

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

How high is the UV index in August in Harriman?

The average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health risk 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
Harriman, TN

Average temperature in August - Harriman, TN
  • Average high temperature in August: 85.8°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 (44.1°F).

  • Average low temperature in August: 63.9°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (29.1°F).

[Resources]

Average pressure in August
Harriman, TN

Average pressure in August - Harriman, 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).

[Resources]

Average wind speed in August
Harriman, TN

Average wind speed in August - Harriman, TN
  • Average wind speed in August: 3.7mph

The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

[Resources]

Average humidity in August
Harriman, TN

Average humidity in August - Harriman, TN
  • Average humidity in August: 76%

The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are June, August, October and November (76%).

[Resources]

Average rainfall in August
Harriman, TN

Average rainfall in August - Harriman, TN
  • Average rainfall in August: 2.76"

The wettest month (with the highest rainfall) is July (4.09").
The driest month (with the least rainfall) is September (1.97").

[Resources]

Average rainfall days in August
Harriman, TN

Average rainfall days in August - Harriman, TN
  • Average rainfall days in August: 16.7 days

The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is November (8.9 days).

[Resources]

Average snowfall in August
Harriman, TN

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

The month with the highest snowfall is February (1.06").
The months with the least snowfall are May, June, July, August, September and October (0").

[Resources]

Average snowfall days in August
Harriman, TN

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

The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

[Resources]

Average daylight in August /
Average sunshine in August
Harriman, TN

Average daylight in August / Average sunshine in August - Harriman, 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 48min).

  • Average sunshine in August: 9h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The months with the least sunshine are January and December (Average sunshine: 4h and 48min).

[Resources]

Average sunshine days in August
Harriman, TN

Average sunshine days in August - Harriman, TN
  • Average sunshine days in August: 12.5 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is July (10.7 days).

[Resources]

Average UV index in August
Harriman, TN

Average UV index in August - Harriman, 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).

[Resources]

Average cloud cover in August
Harriman, TN

Average cloud cover in August - Harriman, TN
  • Average cloud cover in August: 32

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

[Resources]

Average visibility in August
Harriman, TN

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

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

[Resources]

Harriman, Tennessee, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location