August weather forecast
Lancaster, TN

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Weather in August

The last month of the summer, August, is another tropical month in Lancaster, Tennessee, with an average temperature fluctuating between 65.8°F (18.8°C) and 86°F (30°C).

Temperature

Lancaster, Tennessee, experiences a minor change to a still hot 86°F (30°C) in average high-temperature during August, closely reflecting July. In Lancaster, the average nighttime temperature during August is an enjoyable 65.8°F (18.8°C).

Heat index

The average heat index in August is calculated to be a sweltering 98.6°F (37°C). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

The average relative humidity in August in Lancaster is 77%.

Rainfall

In August, in Lancaster, the rain falls for 17.5 days. Throughout August, 3.9" (99mm) of precipitation is accumulated. Throughout the year, there are 177.2 rainfall days, and 40.94" (1040mm) of precipitation is accumulated.

Snowfall

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

Daylight

In August, the average length of the day is 13h and 29min.
On the first day of August, sunrise is at 5:51 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 7:12 pm CDT.

Sunshine

In August, the average sunshine is 10.2h.

UV index

The months with the highest UV index 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 exposure to the Sun's UV radiation for the ordinary person.
Note: In August, the maximum UV index of 6 transforms into these recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
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Frequently asked questions

How hot does it get in Lancaster in August?

The high-temperature, in August, in Lancaster, is 86°F (30°C), while the low-temperature averages to 65.8°F (18.8°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in August is calculated to be 98.6°F (37°C).

What is the average humidity in August in Lancaster?

The average relative humidity in August in Lancaster is 77%.

How many days does it rain in August in Lancaster?

In August, the rain falls for 17.5 days. Throughout August, 3.9" (99mm) of precipitation is accumulated.

When it does not snow in Lancaster?

May through October are months without snowfall.

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

In August, the average day length in Lancaster is 13h and 29min.

When is the sunrise / sunset in August in Lancaster?

On the first day of August, sunrise is at 5:51 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 7:12 pm CDT.

How many hours of sunshine does Lancaster have in August?

In Lancaster, the average sunshine duration in August is 10.2h.

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

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

How high is the UV index in August in Lancaster?

In Lancaster, Tennessee, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health threat from 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
Lancaster, TN

Average temperature in August - Lancaster, TN
  • Average high temperature in August: 86°F

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (43.7°F).

  • Average low temperature in August: 65.8°F

The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).

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Average pressure in August
Lancaster, TN

Average pressure in August - Lancaster, 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).

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Average wind speed in August
Lancaster, TN

Average wind speed in August - Lancaster, TN
  • Average wind speed in August: 4.2mph

The windiest month (with the highest average wind speed) is February (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

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Average humidity in August
Lancaster, TN

Average humidity in August - Lancaster, 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 (76%).

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Average rainfall in August
Lancaster, TN

Average rainfall in August - Lancaster, TN
  • Average rainfall in August: 3.9"

The wettest months (with the highest rainfall) are February and July (4.17").
The driest month (with the least rainfall) is September (2.32").

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Average rainfall days in August
Lancaster, TN

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

The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is November (10.5 days).

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Average snowfall in August
Lancaster, TN

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

The month with the highest snowfall is February (1.34").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Lancaster, TN

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

The month with the highest number of snowfall days is January (4.5 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
Lancaster, TN

Average daylight in August / Average sunshine in August - Lancaster, 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 24min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).

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Average sunshine days in August
Lancaster, TN

Average sunshine days in August - Lancaster, TN
  • Average sunshine days in August: 11.6 days

The months with the most sunshine days are October and November (18 days).
The month with the least sunshine days is July (10 days).

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Average UV index in August
Lancaster, TN

Average UV index in August - Lancaster, 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
Lancaster, TN

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

The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 30).

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Average visibility in August
Lancaster, TN

Average visibility in August - Lancaster, TN
  • Average visibility in August: 5mi

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

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Lancaster, Tennessee, USA

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