August weather forecast
McIllwain, TN

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Weather in August

The last month of the summer, August, is also a hot month in McIllwain, Tennessee, with an average temperature fluctuating between 88.3°F (31.3°C) and 67.6°F (19.8°C).

Temperature

With the advent of August, McIllwain experiences an average high-temperature of a still tropical 88.3°F (31.3°C), mirroring a close resemblance to the previous month. An average temperature of 67.6°F (19.8°C) marks the nights in August.

Heat index

In August, the heat index is estimated at a blisteringly hot 104°F (40°C). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild 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 'real feel' or 'feels like', gives an indication of how one might feel in terms of heat after considering humidity. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

In August, the average relative humidity is 75%.

Rainfall

In August, the rain falls for 10.8 days. Throughout August, 1.3" (33mm) of precipitation is accumulated. In McIllwain, during the entire year, the rain falls for 115.4 days and collects up to 12.32" (313mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In McIllwain, the average length of the day in August is 13h and 29min.
On the first day of August, sunrise is at 6:00 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 7:20 pm CDT.

Sunshine

The average sunshine in August is 10h.

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 exposure to the Sun's UV rays for average individuals.
Note: In August, a daily UV index of 6 turns into the following recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.

Frequently asked questions

How hot is it in August?

In McIllwain, 88.3°F (31.3°C) is the average high-temperature and 67.6°F (19.8°C) is the average low-temperature during August. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, in August is estimated at 104°F (40°C).

What is the average humidity in August in McIllwain?

The average relative humidity in August is 75%.

How many days does it rain in August?

In McIllwain, in August, it is raining for 10.8 days, with typically 1.3" (33mm) of accumulated precipitation.

When it does not snow?

April through October are months without snowfall.

How many hours of daylight does McIllwain have in August?

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

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:00 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 7:20 pm CDT.

How long on average sun shines in August?

The average sunshine duration in August is 10h.

What is the month with the highest UV index?

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

What is the UV index intensity in August?

In McIllwain, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes 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
McIllwain, TN

Average temperature in August - McIllwain, TN
  • Average high temperature in August: 88.3°F

The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (45°F).

  • Average low temperature in August: 67.6°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).

Average pressure in August
McIllwain, TN

Average pressure in August - McIllwain, 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 (29.96"Hg).

Average wind speed in August
McIllwain, TN

Average wind speed in August - McIllwain, TN
  • Average wind speed in August: 4.8mph

The windiest months (with the highest average wind speed) are January, February and April (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

Average humidity in August
McIllwain, TN

Average humidity in August - McIllwain, TN
  • Average humidity in August: 75%

The months with the highest relative humidity are March and December (79%).
The month with the lowest relative humidity is October (73%).

Average rainfall in August
McIllwain, TN

Average rainfall in August - McIllwain, TN
  • Average rainfall in August: 1.3"

The wettest month (with the highest rainfall) is July (1.5").
The driest month (with the least rainfall) is September (0.35").

Average rainfall days in August
McIllwain, TN

Average rainfall days in August - McIllwain, TN
  • Average rainfall days in August: 10.8 days

The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is November (6.1 days).

Average snowfall in August
McIllwain, TN

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

The month with the highest snowfall is March (0.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in August
McIllwain, TN

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

The month with the highest number of snowfall days is January (1.9 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - McIllwain, 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 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 30min).

Average sunshine days in August
McIllwain, TN

Average sunshine days in August - McIllwain, TN
  • Average sunshine days in August: 18 days

The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is July (15.7 days).

Average UV index in August
McIllwain, TN

Average UV index in August - McIllwain, 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
McIllwain, TN

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

The months with the most cloud cover are February and December (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in August
McIllwain, TN

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

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

McIllwain, Tennessee, USA

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