August weather forecast
McHarg, TN

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Weather in August

August, the last month of the summer in McHarg, is also a moderately hot month, with temperature in the range of an average high of 84.4°F (29.1°C) and an average low of 63.7°F (17.6°C).

Temperature

During August, the average high-temperature is a still warm 84.4°F (29.1°C), maintaining a close resemblance to that of the preceding month. During the nights in August, an average low-temperature of 63.7°F (17.6°C) is observed.

Heat index

In August, the heat index is appraised at a fiery hot 95°F (35°C). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', determines the feeling of heat when you account for the relative humidity. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

In August, the average relative humidity is 78%.

Rainfall

In August, in McHarg, Tennessee, the rain falls for 18.5 days. Throughout August, 3.82" (97mm) of precipitation is accumulated. Throughout the year, in McHarg, there are 190.7 rainfall days, and 47.32" (1202mm) of precipitation is accumulated.

Snowfall

In McHarg, snow does not fall in May through September.

Daylight

In August, the average length of the day is 13h and 26min.
On the first day of the month, sunrise is at 6:47 am and sunset at 8:40 pm. On the last day of August, in McHarg, sunrise is at 7:10 am and sunset at 8:05 pm EDT.

Sunshine

In McHarg, the average sunshine in August is 9.5h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. 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 maximum UV index of 6 in August translates into the following recommendations:
Shun overexposure. Protection from sun ravages is indispensable. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.
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Frequently asked questions

How hot is it in McHarg in August?

An average high-temperature, in August, in McHarg, is 84.4°F (29.1°C) and the average low-temperature is 63.7°F (17.6°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 95°F (35°C).

What is the average humidity in August in McHarg?

In McHarg, the average relative humidity in August is 78%.

How much does it rain in McHarg in August?

In McHarg, Tennessee, in August, it is raining for 18.5 days, with typically 3.82" (97mm) of accumulated precipitation.

When it does not snow in McHarg?

May through September are months without snowfall in McHarg, Tennessee.

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

In McHarg, Tennessee, the average day length in August is 13h and 26min.

When are sunrise and sunset in August in McHarg?

In August, on the first day of the month, sunrise is at 6:47 am and sunset at 8:40 pm. On the last day of the month, in McHarg, Tennessee, sunrise is at 7:10 am and sunset at 8:05 pm EDT.

How many hours of sunshine does McHarg have in August?

In August, the average sunshine duration in McHarg, Tennessee, is 9.5h.

When is the highest UV index in McHarg?

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

How high is the UV index in August in McHarg?

In McHarg, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health threat from unprotected exposure to 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
McHarg, TN

Average temperature in August - McHarg, TN
  • Average high temperature in August: 84.4°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (45.1°F).

  • Average low temperature in August: 63.7°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).

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Average pressure in August
McHarg, TN

Average pressure in August - McHarg, 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 (29.99"Hg).

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Average wind speed in August
McHarg, TN

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

The windiest month (with the highest average wind speed) is February (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

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Average humidity in August
McHarg, TN

Average humidity in August - McHarg, TN
  • Average humidity in August: 78%

The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are October and November (76%).

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Average rainfall in August
McHarg, TN

Average rainfall in August - McHarg, TN
  • Average rainfall in August: 3.82"

The wettest month (with the highest rainfall) is December (4.8").
The driest month (with the least rainfall) is September (2.91").

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Average rainfall days in August
McHarg, TN

Average rainfall days in August - McHarg, TN
  • Average rainfall days in August: 18.5 days

The months with the highest number of rainy days are June and July (19.8 days).
The month with the least rainy days is November (11.3 days).

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Average snowfall in August
McHarg, TN

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

The month with the highest snowfall is February (2.13").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
McHarg, TN

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

The month with the highest number of snowfall days is January (4.5 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
McHarg, TN

Average daylight in August / Average sunshine in August - McHarg, TN
  • Average daylight in August: 13h and 2min

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 3min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

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Average sunshine days in August
McHarg, TN

Average sunshine days in August - McHarg, TN
  • Average sunshine days in August: 11.2 days

The month with the most sunshine days is October (17.4 days).
The month with the least sunshine days is June (8 days).

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Average UV index in August
McHarg, TN

Average UV index in August - McHarg, 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).

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Average cloud cover in August
McHarg, TN

Average cloud cover in August - McHarg, TN
  • Average cloud cover in August: 34

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 32).

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Average visibility in August
McHarg, TN

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

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

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McHarg, Tennessee, USA

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