August weather forecast
Porterfield, TN

Share

Weather in August

The last month of the summer, August, is also a hot month in Porterfield, Tennessee, with an average temperature fluctuating between 86.4°F (30.2°C) and 66.2°F (19°C).

Temperature

The shift into August uncovers an average high-temperature of a still tropical 86.4°F (30.2°C), subtly different from the previous month. An average low-temperature of 66.2°F (19°C) is noted in Porterfield, Tennessee, during the month of August.

Heat index

August's mean heat index is appraised at a sweltering 98.6°F (37°C). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', gauges the sensation of temperature factoring in the air's moisture content. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

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

Rainfall

In Porterfield, Tennessee, during August, the rain falls for 18.4 days and regularly aggregates up to 3.74" (95mm) of precipitation. In Porterfield, during the entire year, the rain falls for 176.2 days and collects up to 40.91" (1039mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in August in Porterfield is 13h and 29min.
On the first day of the month, sunrise is at 5:52 am and sunset at 7:49 pm. On the last day of August, in Porterfield, sunrise is at 6:16 am and sunset at 7:13 pm CDT.

Sunshine

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

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: A maximum high daily UV index of 6 during August translates into the following directions:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
[Resources]

Frequently asked questions

Is it hot in Porterfield during August?

The average high-temperature, in August, in Porterfield, is 86.4°F (30.2°C), while the average low-temperature is 66.2°F (19°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is appraised at 98.6°F (37°C).

What is the average humidity in August in Porterfield?

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

How much does it rain in Porterfield in August?

In August, in Porterfield, Tennessee, the rain falls for 18.4 days. Throughout August, 3.74" (95mm) of precipitation is accumulated.

When it does not snow in Porterfield?

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

How many hours of daylight does Porterfield have in August?

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

When are sunrise and sunset in August in Porterfield?

On the first day of August in Porterfield, sunrise is at 5:52 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 7:13 pm CDT.

How long on average sun shines in August in Porterfield?

The average sunshine duration in August in Porterfield, Tennessee, is 10.1h.

What are the months with the highest UV index in Porterfield?

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

How high is the UV index in August in Porterfield?

The average daily maximum UV index in August in Porterfield is 6. A UV Index reading of 6 to 7 represents a high health vulnerability 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
Porterfield, TN

Average temperature in August - Porterfield, TN
  • Average high temperature in August: 86.4°F

The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (44.8°F).

  • Average low temperature in August: 66.2°F

The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (30.4°F).

[Resources]

Average pressure in August
Porterfield, TN

Average pressure in August - Porterfield, TN
  • Average pressure in August: 30"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).

[Resources]

Average wind speed in August
Porterfield, TN

Average wind speed in August - Porterfield, TN
  • Average wind speed in August: 4.3mph

The windiest month (with the highest average wind speed) is February (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.3mph).

[Resources]

Average humidity in August
Porterfield, TN

Average humidity in August - Porterfield, TN
  • Average humidity in August: 77%

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

[Resources]

Average rainfall in August
Porterfield, TN

Average rainfall in August - Porterfield, TN
  • Average rainfall in August: 3.74"

The wettest months (with the highest rainfall) are February and July (4.45").
The driest month (with the least rainfall) is September (2.28").

[Resources]

Average rainfall days in August
Porterfield, TN

Average rainfall days in August - Porterfield, TN
  • Average rainfall days in August: 18.4 days

The month with the highest number of rainy days is July (19.5 days).
The month with the least rainy days is November (9.6 days).

[Resources]

Average snowfall in August
Porterfield, TN

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

The month with the highest snowfall is January (1.14").
The months with the least snowfall are May, June, July, August, September and October (0").

[Resources]

Average snowfall days in August
Porterfield, TN

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

The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

[Resources]

Average daylight in August /
Average sunshine in August
Porterfield, TN

Average daylight in August / Average sunshine in August - Porterfield, 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 1min

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

[Resources]

Average sunshine days in August
Porterfield, TN

Average sunshine days in August - Porterfield, TN
  • Average sunshine days in August: 11.2 days

The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is July (9.9 days).

[Resources]

Average UV index in August
Porterfield, TN

Average UV index in August - Porterfield, 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).

[Resources]

Average cloud cover in August
Porterfield, TN

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

The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 30).

[Resources]

Average visibility in August
Porterfield, TN

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

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

[Resources]

Porterfield, Tennessee, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location