August weather forecast
Johnston Circle, TN

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Weather in August

August, the last month of the summer in Johnston Circle, is another tropical month, with an average temperature varying between 65.8°F (18.8°C) and 87.4°F (30.8°C).

Temperature

Johnston Circle records an average high-temperature of a still hot 87.4°F (30.8°C) in August, closely mirroring the climate of the previous month. The nighttime temperature in Johnston Circle during August exhibits a clear drop from daytime highs, settling at a refreshing 65.8°F (18.8°C).

Heat index

During August, the heat index is computed to be a sweltering 102.2°F (39°C). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'real feel', represents the fusion of temperature and moisture in the air to suggest how warm it feels. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

The months with the lowest humidity are June through November, with an average relative humidity of 75%.

Rainfall

In Johnston Circle, in August, during 14.8 rainfall days, 2.44" (62mm) of precipitation is typically accumulated. Throughout the year, in Johnston Circle, Tennessee, there are 148 rainfall days, and 23.9" (607mm) of precipitation is accumulated.

Snowfall

In Johnston Circle, snow does not fall in April through October.

Daylight

In August, the average length of the day is 13h and 26min.
On the first day of August, sunrise is at 6:48 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 8:07 pm EDT.

Sunshine

In August, the average sunshine in Johnston Circle is 9.6h.

UV index

The months with the highest UV index in Johnston Circle are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In August, the maximum UV index of 6 suggests these recommendations:
Prevent overexposure. Protection from the sun's harmful effects is needed. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.
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Frequently asked questions

How hot is it in Johnston Circle in August?

In Johnston Circle, in August, the average high-temperature is 87.4°F (30.8°C), and the average low-temperature is 65.8°F (18.8°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is computed to be 102.2°F (39°C).

What are the least humid months in Johnston Circle?

June through November, with an average relative humidity of 75%, are the least humid months in Johnston Circle, Tennessee.

What is the average humidity in August in Johnston Circle?

In Johnston Circle, the average relative humidity in August is 75%.

How much does it rain in Johnston Circle in August?

In Johnston Circle, Tennessee, during August, the rain falls for 14.8 days and regularly aggregates up to 2.44" (62mm) of precipitation.

When it does not snow in Johnston Circle?

In Johnston Circle, snow does not fall in April through October.

How many hours of daylight does Johnston Circle have in August?

The average day length in August is 13h and 26min.

When is the sunrise / sunset in August in Johnston Circle?

On the first day of August in Johnston Circle, Tennessee, sunrise is at 6:48 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 8:07 pm EDT.

How long on average sun shines in August in Johnston Circle?

In Johnston Circle, Tennessee, the average sunshine duration in August is 9.6h.

When is the highest UV index in Johnston Circle?

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

What is the UV index reading in August in Johnston Circle?

In August, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high hazard to health 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
Johnston Circle, TN

Average temperature in August - Johnston Circle, TN
  • Average high temperature in August: 87.4°F

The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (46.4°F).

  • Average low temperature in August: 65.8°F

The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).

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Average pressure in August
Johnston Circle, TN

Average pressure in August - Johnston Circle, 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).

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Average wind speed in August
Johnston Circle, TN

Average wind speed in August - Johnston Circle, TN
  • Average wind speed in August: 3.8mph

The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).

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Average humidity in August
Johnston Circle, TN

Average humidity in August - Johnston Circle, TN
  • Average humidity in August: 75%

The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are June, July, August, September, October and November (75%).

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Average rainfall in August
Johnston Circle, TN

Average rainfall in August - Johnston Circle, TN
  • Average rainfall in August: 2.44"

The wettest month (with the highest rainfall) is July (2.64").
The driest month (with the least rainfall) is September (1.3").

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Average rainfall days in August
Johnston Circle, TN

Average rainfall days in August - Johnston Circle, TN
  • Average rainfall days in August: 14.8 days

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is November (7.3 days).

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Average snowfall in August
Johnston Circle, TN

Average snowfall in August - Johnston Circle, TN
  • Average snowfall in August: 0"

The month with the highest snowfall is February (0.75").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in August
Johnston Circle, TN

Average snowfall days in August - Johnston Circle, TN
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (1.7 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
Johnston Circle, TN

Average daylight in August / Average sunshine in August - Johnston Circle, 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 4min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

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Average sunshine days in August
Johnston Circle, TN

Average sunshine days in August - Johnston Circle, TN
  • Average sunshine days in August: 12.9 days

The months with the most sunshine days are October and November (21.2 days).
The month with the least sunshine days is July (11.6 days).

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Average UV index in August
Johnston Circle, TN

Average UV index in August - Johnston Circle, 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
Johnston Circle, TN

Average cloud cover in August - Johnston Circle, TN
  • Average cloud cover in August: 31

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 29).

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Average visibility in August
Johnston Circle, TN

Average visibility in August - Johnston Circle, TN
  • Average visibility in August: 6mi

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

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Johnston Circle, Tennessee, USA

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