August weather forecast
Allen, TN

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Weather in August

The last month of the summer, August, is another tropical month in Allen, Tennessee, with temperature in the range of an average low of 65.1°F (18.4°C) and an average high of 86.9°F (30.5°C).

Temperature

The shift into August records an average high-temperature of a still hot 86.9°F (30.5°C), subtly varied from July's 87.6°F (30.9°C). Allen documents a substantial deviation from daytime highs with a consistent low-temperature of 65.1°F (18.4°C) during August nights.

Heat index

The heat index in August is evaluated at a fiery hot 100.4°F (38°C). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', ties air temperature with relative humidity to produce the perceived temperature sensation. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

June, August, October and November, with an average relative humidity of 75%, are the least humid months in Allen, Tennessee.

Rainfall

In Allen, during August, the rain falls for 17.7 days and regularly aggregates up to 3.39" (86mm) of precipitation. Throughout the year, there are 171.8 rainfall days, and 41.81" (1062mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in August is 13h and 27min.
On the first day of the month, sunrise is at 6:48 am and sunset at 8:42 pm. On the last day of August, in Allen, sunrise is at 7:11 am and sunset at 8:07 pm EDT.

Sunshine

In August, the average sunshine is 9.6h.

UV index

The months with the highest UV index in Allen are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: In August, the maximum UV index of 6 suggests this advice:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
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Frequently asked questions

How hot is August in Allen?

In Allen, 86.9°F (30.5°C) is the average high-temperature and 65.1°F (18.4°C) is the average low-temperature during August. In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, is evaluated at 100.4°F (38°C).

What are the least humid months in Allen?

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

What is the average humidity in August in Allen?

In Allen, Tennessee, the average relative humidity in August is 75%.

How much does it rain in Allen in August?

In August, in Allen, the rain falls for 17.7 days. Throughout August, 3.39" (86mm) of precipitation is accumulated.

When it does not snow in Allen?

In Allen, Tennessee, snow does not fall in May through October.

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

In Allen, Tennessee, the average day length in August is 13h and 27min.

What time are sunrise and sunset in August in Allen?

In August, on the first day of the month, 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 many hours of sunshine does Allen have in August?

In August, the average sunshine duration in Allen is 9.6h.

What is the month with the highest UV index in Allen?

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 Allen?

In Allen, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's 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
Allen, TN

Average temperature in August - Allen, TN
  • Average high temperature in August: 86.9°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 (45.5°F).

  • Average low temperature in August: 65.1°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

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Average pressure in August
Allen, TN

Average pressure in August - Allen, 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
Allen, TN

Average wind speed in August - Allen, TN
  • Average wind speed in August: 3.9mph

The windiest months (with the highest average wind speed) are February, March and April (6.5mph).
The calmest months (with the lowest average wind speed) are July and August (3.9mph).

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Average humidity in August
Allen, TN

Average humidity in August - Allen, 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, August, October and November (75%).

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Average rainfall in August
Allen, TN

Average rainfall in August - Allen, TN
  • Average rainfall in August: 3.39"

The wettest months (with the highest rainfall) are July and December (4.29").
The driest month (with the least rainfall) is September (2.32").

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Average rainfall days in August
Allen, TN

Average rainfall days in August - Allen, TN
  • Average rainfall days in August: 17.7 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is November (9.5 days).

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Average snowfall in August
Allen, TN

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

The month with the highest snowfall is January (1.02").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Allen, TN

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

The month with the highest number of snowfall days is January (4.8 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
Allen, TN

Average daylight in August / Average sunshine in August - Allen, 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: 9h and 4min

The months with the most sunshine are June and July (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
Allen, TN

Average sunshine days in August - Allen, TN
  • Average sunshine days in August: 11.8 days

The month with the most sunshine days is October (18.6 days).
The month with the least sunshine days is July (10.2 days).

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Average UV index in August
Allen, TN

Average UV index in August - Allen, 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
Allen, TN

Average cloud cover in August - Allen, TN
  • Average cloud cover in August: 31

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

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Average visibility in August
Allen, TN

Average visibility in August - Allen, TN
  • Average visibility in August: 6mi

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

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Allen, Tennessee, USA

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