August weather forecast
Johnsons Mill, TN

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Weather in August

August, the last month of the summer in Johnsons Mill, is another hot month, with an average temperature ranging between min 67.1°F (19.5°C) and max 87.1°F (30.6°C).

Temperature

The commencement of August brings an average high-temperature of a still tropical 87.1°F (30.6°C), marking an inconsequential divergence from July. August nights observe an average temperature dip to a refreshing 67.1°F (19.5°C).

Heat index

August's mean heat index is computed to be a fiery hot 102.2°F (39°C). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.
When referencing the heat index, its values are suitable for shady environments and light breezes. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

In Johnsons Mill, the average relative humidity in August is 77%.

Rainfall

In Johnsons Mill, in August, it is raining for 18.7 days, with typically 3.58" (91mm) of accumulated precipitation. In Johnsons Mill, Tennessee, during the entire year, the rain falls for 178.7 days and collects up to 39.21" (996mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In August, the average length of the day in Johnsons Mill is 13h and 28min.
On the first day of the month, sunrise is at 5:57 am and sunset at 7:53 pm. On the last day of August, in Johnsons Mill, sunrise is at 6:20 am and sunset at 7:17 pm CDT.

Sunshine

In Johnsons Mill, the average sunshine in August is 10.1h.

UV index

The months with the highest UV index in Johnsons Mill are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In August, an average UV index of 6 transforms into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
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Frequently asked questions

How hot does it get in Johnsons Mill in August?

In Johnsons Mill, in August, the average high-temperature is 87.1°F (30.6°C), and the average low-temperature is 67.1°F (19.5°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in August is computed to be 102.2°F (39°C).

What is the average humidity in August in Johnsons Mill?

In Johnsons Mill, Tennessee, the average relative humidity in August is 77%.

How many days does it rain in August in Johnsons Mill?

In Johnsons Mill, in August, it is raining for 18.7 days, with typically 3.58" (91mm) of accumulated precipitation.

When it does not snow in Johnsons Mill?

In Johnsons Mill, Tennessee, snow does not fall in May through September.

What is the average length of the day in August in Johnsons Mill?

In Johnsons Mill, Tennessee, the average day length in August is 13h and 28min.

What time are sunrise and sunset in August in Johnsons Mill?

On the first day of August, sunrise is at 5:57 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 7:17 pm CDT.

How long on average sun shines in August in Johnsons Mill?

The average sunshine duration in August is 10.1h.

What is the month with the highest UV index in Johnsons Mill?

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 Johnsons Mill?

The average daily maximum UV index in August in Johnsons Mill is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation.
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
Johnsons Mill, TN

Average temperature in August - Johnsons Mill, TN
  • Average high temperature in August: 87.1°F

The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (45°F).

  • Average low temperature in August: 67.1°F

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).

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Average pressure in August
Johnsons Mill, TN

Average pressure in August - Johnsons Mill, 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
Johnsons Mill, TN

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

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 (4.7mph).

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Average humidity in August
Johnsons Mill, TN

Average humidity in August - Johnsons Mill, TN
  • Average humidity in August: 77%

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

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Average rainfall in August
Johnsons Mill, TN

Average rainfall in August - Johnsons Mill, TN
  • Average rainfall in August: 3.58"

The wettest month (with the highest rainfall) is July (4.21").
The driest month (with the least rainfall) is September (2.44").

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Average rainfall days in August
Johnsons Mill, TN

Average rainfall days in August - Johnsons Mill, TN
  • Average rainfall days in August: 18.7 days

The month with the highest number of rainy days is July (20 days).
The month with the least rainy days is November (10.5 days).

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Average snowfall in August
Johnsons Mill, TN

Average snowfall in August - Johnsons Mill, TN
  • Average snowfall in August: 0"

The month with the highest snowfall is January (0.98").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
Johnsons Mill, TN

Average snowfall days in August - Johnsons Mill, TN
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (4 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
Johnsons Mill, TN

Average daylight in August / Average sunshine in August - Johnsons Mill, 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 1min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The months with the least sunshine are February and December (Average sunshine: 4h and 36min).

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Average sunshine days in August
Johnsons Mill, TN

Average sunshine days in August - Johnsons Mill, TN
  • Average sunshine days in August: 10.3 days

The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is July (8.8 days).

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Average UV index in August
Johnsons Mill, TN

Average UV index in August - Johnsons Mill, 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
Johnsons Mill, TN

Average cloud cover in August - Johnsons Mill, TN
  • Average cloud cover in August: 32

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).

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Average visibility in August
Johnsons Mill, TN

Average visibility in August - Johnsons Mill, TN
  • Average visibility in August: 5mi

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

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Johnsons Mill, Tennessee, USA

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