August weather forecast
Altoona, AL

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Weather in August

The last month of the summer, August, is also a hot month in Altoona, Alabama, with temperature in the range of an average low of 68.7°F (20.4°C) and an average high of 87.6°F (30.9°C).

Temperature

Altoona commences August with an average high-temperature of a still hot 87.6°F (30.9°C), maintaining a close resemblance to the previous month. An average low-temperature of 68.7°F (20.4°C) marks the month of August in Altoona.

Heat index

The heat index in August is calculated to be a sweltering 102.2°F (39°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
In the scope of the heat index, its values resonate with shade and light wind conditions. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', reflects the feeling of heat when considering both air temperature and humidity. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. 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. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

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

Rainfall

The month with the most rainfall is August, when the rain falls for 20.1 days and typically aggregates up to 4.41" (112mm) of precipitation.

Snowfall

In Altoona, snow does not fall in April through October.

Daylight

The average length of the day in August is 13h and 23min.
On the first day of August, sunrise is at 5:57 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 7:12 pm CDT.

Sunshine

In August, the average sunshine is 9.8h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: An average maximum UV index of 6 in August leads to these recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. 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. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Updated: Jun 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in August?

During August, Altoona experiences an average high-temperature of 87.6°F (30.9°C) and a low-temperature of 68.7°F (20.4°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, is calculated to be 102.2°F (39°C).

What is the average humidity in August?

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

What is the rainiest month?

The month with the most rainfall is August, when the rain falls for 20.1 days and typically aggregates up to 4.41" (112mm) of precipitation.

How much does it rain in August?

In Altoona, in August, during 20.1 rainfall days, 4.41" (112mm) of precipitation is typically accumulated.

When it does not snow?

April through October are months without snowfall.

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

In August, the average day length is 13h and 23min.

What time are sunrise and sunset in August?

On the first day of August in Altoona, sunrise is at 5:57 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 7:12 pm CDT.

How many hours of sunshine does Altoona have in August?

The average sunshine duration in August in Altoona is 9.8h.

What are the months with the highest UV index?

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?

The average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health threat 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
Altoona, AL

Average temperature in August - Altoona, AL
  • Average high temperature in August: 87.6°F

The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (49.1°F).

  • Average low temperature in August: 68.7°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (34°F).

Average pressure in August
Altoona, AL

Average pressure in August - Altoona, AL
  • 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 (29.98"Hg).

Average wind speed in August
Altoona, AL

Average wind speed in August - Altoona, AL
  • Average wind speed in August: 4.5mph

The windiest months (with the highest average wind speed) are January and February (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

Average humidity in August
Altoona, AL

Average humidity in August - Altoona, AL
  • Average humidity in August: 76%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (73%).

Average rainfall in August
Altoona, AL

Average rainfall in August - Altoona, AL
  • Average rainfall in August: 4.41"

The wettest month (with the highest rainfall) is August (4.41").
The driest month (with the least rainfall) is October (2.4").

Average rainfall days in August
Altoona, AL

Average rainfall days in August - Altoona, AL
  • Average rainfall days in August: 20.1 days

The month with the highest number of rainy days is July (22.2 days).
The month with the least rainy days is November (10.1 days).

Average snowfall in August
Altoona, AL

Average snowfall in August - Altoona, AL
  • Average snowfall in August: 0"

The month with the highest snowfall is January (0.71").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in August
Altoona, AL

Average snowfall days in August - Altoona, AL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
Altoona, AL

Average daylight in August / Average sunshine in August - Altoona, AL
  • Average daylight in August: 13h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in August: 9h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

Average sunshine days in August
Altoona, AL

Average sunshine days in August - Altoona, AL
  • Average sunshine days in August: 8.8 days

The months with the most sunshine days are October and November (18.5 days).
The month with the least sunshine days is July (7.8 days).

Average UV index in August
Altoona, AL

Average UV index in August - Altoona, AL
  • 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 and December (UV index 2).

Average cloud cover in August
Altoona, AL

Average cloud cover in August - Altoona, AL
  • Average cloud cover in August: 34

The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June and September (Cloud cover 32).

Average visibility in August
Altoona, AL

Average visibility in August - Altoona, AL
  • 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).

Altoona, Alabama, USA

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