August weather forecast
Blue Grass, TN

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Weather in August

The last month of the summer, August, is another hot month in Blue Grass, Tennessee, with an average temperature varying between 87.1°F (30.6°C) and 65.1°F (18.4°C).

Temperature

Blue Grass greets August with an average high-temperature of a still hot 87.1°F (30.6°C), marking a slight deviation from the preceding month. Blue Grass, in the heat of August, registers a significant plunge to a mean of 65.1°F (18.4°C) during the nights.

Heat index

August's mean heat index is computed to be a torrid 98.6°F (37°C). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

August is the least humid month, with an average relative humidity of 72%.

Rainfall

In Blue Grass, during August, the rain falls for 16.9 days and regularly aggregates up to 2.64" (67mm) of precipitation. In Blue Grass, during the entire year, the rain falls for 177.6 days and collects up to 37.91" (963mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In August, the average length of the day is 13h and 29min.
On the first day of August in Blue Grass, sunrise is at 6:44 am and sunset at 8:40 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 8:04 pm EDT.

Sunshine

In August, the average sunshine is 10h.

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 unprotected exposure to Sun's UV rays for the ordinary person.
Note: In August, a regular UV index of 6 translates into these guidelines:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. 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. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Updated: Jun 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August?

The high-temperature, in August, in Blue Grass, records 87.1°F (30.6°C), while the low-temperature is 65.1°F (18.4°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, in August is computed to be 98.6°F (37°C).

What is the least humid month?

The least humid month is August, with an average relative humidity of 72%.

What is the average humidity in August?

The average relative humidity in August is 72%.

How much does it rain in August?

In August, the rain falls for 16.9 days. Throughout August, 2.64" (67mm) of precipitation is accumulated.

When it does not snow?

May through September are months without snowfall.

How many hours of daylight does Blue Grass have in August?

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

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 6:44 am and sunset at 8:40 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 8:04 pm EDT.

How many hours of sunshine does Blue Grass have in August?

In August, the average sunshine duration is 10h.

When is the highest UV index?

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

How high is the UV index in August in Blue Grass?

In Blue Grass, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe 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
Blue Grass, TN

Average temperature in August - Blue Grass, TN
  • Average high temperature in August: 87.1°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 (44.8°F).

  • Average low temperature in August: 65.1°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).

Average pressure in August
Blue Grass, TN

Average pressure in August - Blue Grass, 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).

Average wind speed in August
Blue Grass, TN

Average wind speed in August - Blue Grass, TN
  • Average wind speed in August: 3.6mph

The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).

Average humidity in August
Blue Grass, TN

Average humidity in August - Blue Grass, TN
  • Average humidity in August: 72%

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is August (72%).

Average rainfall in August
Blue Grass, TN

Average rainfall in August - Blue Grass, TN
  • Average rainfall in August: 2.64"

The wettest month (with the highest rainfall) is February (4.33").
The driest month (with the least rainfall) is September (1.97").

Average rainfall days in August
Blue Grass, TN

Average rainfall days in August - Blue Grass, TN
  • Average rainfall days in August: 16.9 days

The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is November (10.3 days).

Average snowfall in August
Blue Grass, TN

Average snowfall in August - Blue Grass, TN
  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.93").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Blue Grass, TN

Average snowfall days in August - Blue Grass, TN
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (5.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Blue Grass, TN

Average daylight in August / Average sunshine in August - Blue Grass, 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 42min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).

Average sunshine days in August
Blue Grass, TN

Average sunshine days in August - Blue Grass, TN
  • Average sunshine days in August: 11.7 days

The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is July (10.3 days).

Average UV index in August
Blue Grass, TN

Average UV index in August - Blue Grass, 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).

Average cloud cover in August
Blue Grass, TN

Average cloud cover in August - Blue Grass, TN
  • Average cloud cover in August: 28

The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are June and August (Cloud cover 28).

Average visibility in August
Blue Grass, TN

Average visibility in August - Blue Grass, TN
  • Average visibility in August: 6mi

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

Blue Grass, Tennessee, USA

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