August weather forecast
West Harpeth, TN

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Weather in August

The last month of the summer, August, is also a hot month in West Harpeth, Tennessee, with temperature in the range of an average high of 87.3°F (30.7°C) and an average low of 68°F (20°C).

Temperature

As West Harpeth steps into August, the average high-temperature holds at a still hot 87.3°F (30.7°C), hinting at a minor fluctuation from the prior month. During the month of August, the nighttime temperature falls to an average of 68°F (20°C).

Heat index

For August, the heat index is appraised at a fiery hot 100.4°F (38°C). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is the outcome of merging air's temperature and its humidity metrics. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are particularly important for children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

In West Harpeth, the average relative humidity in August is 75%.

Rainfall

In West Harpeth, in August, during 17.6 rainfall days, 3.62" (92mm) of precipitation is typically accumulated. In West Harpeth, during the entire year, the rain falls for 176.6 days and collects up to 38.94" (989mm) of precipitation.

Snowfall

In West Harpeth, snow does not fall in May through September.

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 7:51 pm. On the last day of August, in West Harpeth, sunrise is at 6:19 am and sunset at 7:16 pm CDT.

Sunshine

In August, the average sunshine is 10.3h.

UV index

The months with the highest UV index 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 ordinary person.
Note: A daily high UV index of 6 in August leads to these guidelines:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
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Frequently asked questions

How hot is August in West Harpeth?

The high-temperature, in August, in West Harpeth, records 87.3°F (30.7°C), while the low-temperature is 68°F (20°C). The average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, in August is appraised at 100.4°F (38°C).

What is the average humidity in August in West Harpeth?

The average relative humidity in August in West Harpeth is 75%.

How much does it rain in West Harpeth in August?

In West Harpeth, Tennessee, in August, it is raining for 17.6 days, with typically 3.62" (92mm) of accumulated precipitation.

When it does not snow in West Harpeth?

May through September are months without snowfall in West Harpeth, Tennessee.

What is the average length of the day in August in West Harpeth?

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

What time are sunrise and sunset in August in West Harpeth?

On the first day of August in West Harpeth, Tennessee, sunrise is at 5:55 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 7:16 pm CDT.

How long on average sun shines in August in West Harpeth?

In West Harpeth, the average sunshine duration in August is 10.3h.

What are the months with the highest UV index in West Harpeth?

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 West Harpeth?

The average daily maximum UV index in August in West Harpeth, Tennessee, is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to Sun's UV rays.
Average max. wind speed
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
West Harpeth, TN

Average temperature in August - West Harpeth, TN
  • Average high temperature in August: 87.3°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (45.1°F).

  • Average low temperature in August: 68°F

The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).

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Average pressure in August
West Harpeth, TN

Average pressure in August - West Harpeth, 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).

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Average wind speed in August
West Harpeth, TN

Average wind speed in August - West Harpeth, TN
  • Average wind speed in August: 4.6mph

The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.6mph).

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Average humidity in August
West Harpeth, TN

Average humidity in August - West Harpeth, TN
  • Average humidity in August: 75%

The month with the highest relative humidity is December (79%).
The months with the lowest relative humidity are October and November (74%).

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Average rainfall in August
West Harpeth, TN

Average rainfall in August - West Harpeth, TN
  • Average rainfall in August: 3.62"

The wettest month (with the highest rainfall) is July (4.37").
The driest months (with the least rainfall) are September and November (2.36").

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Average rainfall days in August
West Harpeth, TN

Average rainfall days in August - West Harpeth, TN
  • Average rainfall days in August: 17.6 days

The month with the highest number of rainy days is July (20.3 days).
The month with the least rainy days is November (10 days).

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Average snowfall in August
West Harpeth, TN

Average snowfall in August - West Harpeth, TN
  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.22").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
West Harpeth, TN

Average snowfall days in August - West Harpeth, TN
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (3.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
West Harpeth, TN

Average daylight in August / Average sunshine in August - West Harpeth, 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: 10h and 2min

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).

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Average sunshine days in August
West Harpeth, TN

Average sunshine days in August - West Harpeth, TN
  • Average sunshine days in August: 11.8 days

The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is July (9.2 days).

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Average UV index in August
West Harpeth, TN

Average UV index in August - West Harpeth, 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).

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Average cloud cover in August
West Harpeth, TN

Average cloud cover in August - West Harpeth, TN
  • Average cloud cover in August: 31

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 29).

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Average visibility in August
West Harpeth, TN

Average visibility in August - West Harpeth, TN
  • Average visibility in August: 6mi

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

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West Harpeth, Tennessee, USA

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