August weather forecast and climate
Grayson, AL

Weather in August

August, the last month of the summer, in Grayson, is another hot month, with average temperature fluctuating between 88°F (31.1°C) and 69.1°F (20.6°C).

Temperature

In August, the average high-temperature is relatively the same as in July - a still hot 88°F (31.1°C). In Grayson, in August, the average low-temperature is 69.1°F (20.6°C).

Heat index

In August, the average heat index is calculated to a sweltering 103.1°F (39.5°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'feels like', 'apparent temperature', or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (pregnancy, differences in body mass, height, and shape, wind). Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. 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. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

The average relative humidity in August is 75%.

Rainfall

In Grayson, during August, the rain falls for 18.9 days and regularly aggregates up to 3.58" (91mm) of precipitation. In Grayson, during the entire year, the rain falls for 176.4 days and collects up to 43.19" (1097mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In Grayson, the average length of the day is 13.4h.

Sunshine

In August, the average sunshine in Grayson is 9.9h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from the exposure to the Sun's UV radiation for average individuals.
Note: In August, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in August in Grayson?

The average high-temperature, in August, in Grayson, Alabama, is 88°F (31.1°C), while the average low-temperature is 69.1°F (20.6°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), that combines relative humidity and air temperature, in August is estimated at 103.1°F (39.5°C).

What is the average humidity in August in Grayson?

In August, the average relative humidity in Grayson is 75%.

How much does it rain in Grayson in August?

In August, in Grayson, Alabama, the rain falls for 18.9 days. Throughout August, 3.58" (91mm) of precipitation is accumulated.

When it does not snow in Grayson?

April through October are months without snowfall.

How many hours of daylight does Grayson have in August?

The average length of the day in August in Grayson, Alabama, is 13.4h.

How many hours of sunshine does Grayson have in August?

In August, the average sunshine in Grayson is 9.9h.

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

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

What is the UV index reading in August in Grayson?

In August, the average daily maximum UV index in Grayson, Alabama, is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unprotected exposure to the UV radiation.

Average temperature in August
Grayson, AL

Average temperature in August - Grayson, AL
  • Average high temperature in August: 88°F

The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (48.2°F).

  • Average low temperature in August: 69.1°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).

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Average pressure in August
Grayson, AL

Average pressure in August - Grayson, AL
  • Average pressure in August: 29.99"

The month with the highest atmospheric pressure is January (30.17").
The month with the lowest atmospheric pressure is June (29.97").

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Average wind speed in August
Grayson, AL

Average wind speed in August - Grayson, AL
  • Average wind speed in August: 5mph

The windiest month (with the highest average wind speed) is February (8.5mph).
The calmest month (with the lowest average wind speed) is July (4.9mph).

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Average humidity in August
Grayson, AL

Average humidity in August - Grayson, AL
  • Average humidity in August: 75%

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

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Average rainfall in August
Grayson, AL

Average rainfall in August - Grayson, AL
  • Average rainfall in August: 3.58"

The wettest month (with the highest rainfall) is December (4.49").
The driest month (with the least rainfall) is November (2.36").

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Average rainfall days in August
Grayson, AL

Average rainfall days in August - Grayson, AL
  • Average rainfall days in August: 18.9 days

The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is November (10.6 days).

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Average snowfall in August
Grayson, AL

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

The month with the highest snowfall is February (0.63").
Months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in August
Grayson, AL

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

The month with the highest number of snowfall days is February (2.1 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in August / Average sunshine in August - Grayson, AL
  • Average daylight in August: 13.4h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in August: 9.9h

Months with the most sunshine are June and July (Average sunshine: 10.3h).
The month with the least sunshine is February (Average sunshine: 4.5h).

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Average sunshine days in August
Grayson, AL

Average sunshine days in August - Grayson, AL
  • Average sunshine days in August: 10.3 days

The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is July (9.3 days).

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Average UV index in August
Grayson, AL

Average UV index in August - Grayson, AL
  • Average UV index in August: 6

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
Grayson, AL

Average cloud cover in August - Grayson, AL
  • Average cloud cover in August: 33

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 30).

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Average visibility in August
Grayson, AL

Average visibility in August - Grayson, AL
  • Average visibility in August: 6mi

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

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