August weather forecast
Petersburg, TN

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Weather in August

August, the last month of the summer in Petersburg, is also a hot month, with an average temperature ranging between max 86.5°F (30.3°C) and min 67.5°F (19.7°C).

Temperature

Petersburg, Tennessee, signifies an average high-temperature of a still hot 86.5°F (30.3°C) in August, closely mirroring the 87.4°F (30.8°C) of July. An average low-temperature of 67.5°F (19.7°C) is observed during August nights.

Heat index

The heat index for August is evaluated at a very hot 98.6°F (37°C). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

In August, the average relative humidity is 76%.

Rainfall

In Petersburg, in August, during 17.5 rainfall days, 3.7" (94mm) of precipitation is typically accumulated. In Petersburg, during the entire year, the rain falls for 173.6 days and collects up to 39.65" (1007mm) of precipitation.

Snowfall

In Petersburg, snow does not fall in May through October.

Daylight

In August, the average length of the day in Petersburg is 13h and 27min.
On the first day of August, sunrise is at 5:55 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 7:14 pm CDT.

Sunshine

In August, the average sunshine in Petersburg is 10.1h.

UV index

The months with the highest UV index in Petersburg are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: A maximum high daily UV index of 6 during August translates into the following directions:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
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Frequently asked questions

Is it hot in Petersburg during August?

The average high-temperature, in August, in Petersburg, is 86.5°F (30.3°C), while the average low-temperature is 67.5°F (19.7°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, in August is evaluated at 98.6°F (37°C).

What is the average humidity in August in Petersburg?

In August, the average relative humidity in Petersburg, Tennessee, is 76%.

How much does it rain in Petersburg in August?

In Petersburg, during August, the rain falls for 17.5 days and regularly aggregates up to 3.7" (94mm) of precipitation.

When it does not snow in Petersburg?

May through October are months without snowfall in Petersburg, Tennessee.

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

The average day length in August is 13h and 27min.

When is the sunrise / sunset in August in Petersburg?

On the first day of August in Petersburg, Tennessee, sunrise is at 5:55 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 7:14 pm CDT.

How many hours of sunshine does Petersburg have in August?

In Petersburg, Tennessee, the average sunshine duration in August is 10.1h.

When is the highest UV index in Petersburg?

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

How high is the UV index in August in Petersburg?

In August, the average daily maximum UV index in Petersburg, Tennessee, is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health 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
Petersburg, TN

Average temperature in August - Petersburg, TN
  • Average high temperature in August: 86.5°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (45.7°F).

  • Average low temperature in August: 67.5°F

The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (31.3°F).

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Average pressure in August
Petersburg, TN

Average pressure in August - Petersburg, 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
Petersburg, TN

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

The windiest month (with the highest average wind speed) is February (8.6mph).
The calmest month (with the lowest average wind speed) is July (4.6mph).

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Average humidity in August
Petersburg, TN

Average humidity in August - Petersburg, TN
  • Average humidity in August: 76%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in August
Petersburg, TN

Average rainfall in August - Petersburg, TN
  • Average rainfall in August: 3.7"

The wettest month (with the highest rainfall) is February (4.37").
The driest month (with the least rainfall) is September (2.24").

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Average rainfall days in August
Petersburg, TN

Average rainfall days in August - Petersburg, TN
  • Average rainfall days in August: 17.5 days

The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is November (9.5 days).

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Average snowfall in August
Petersburg, TN

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

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

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Average snowfall days in August
Petersburg, TN

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

The month with the highest number of snowfall days is February (2.6 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
Petersburg, TN

Average daylight in August / Average sunshine in August - Petersburg, 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: 10h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

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Average sunshine days in August
Petersburg, TN

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

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is July (9.9 days).

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Average UV index in August
Petersburg, TN

Average UV index in August - Petersburg, 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).

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Average cloud cover in August
Petersburg, TN

Average cloud cover in August - Petersburg, TN
  • Average cloud cover in August: 32

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 30).

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Average visibility in August
Petersburg, TN

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

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

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Petersburg, Tennessee, USA

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