August weather forecast
Grantley, AL

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Weather in August

The last month of the summer, August, is another hot month in Grantley, Alabama, with temperature in the range of an average high of 88.7°F (31.5°C) and an average low of 67.6°F (19.8°C).

Temperature

Grantley's entry into August measures an average high-temperature of a still hot 88.7°F (31.5°C), closely parallel to the preceding month. In August, in Grantley, the average low-temperature is a comfortable 67.6°F (19.8°C).

Heat index

For August, the heat index is estimated at a blisteringly hot 105.8°F (41°C). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is an aggregate value of air's warmth and moisture to show the human-felt temperature. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

The average relative humidity in August in Grantley is 75%.

Rainfall

August is the month with the most rainfall in Grantley, Alabama. Rain falls for 17.8 days and accumulates 2.56" (65mm) of precipitation.

Snowfall

In Grantley, snow does not fall in April through November.

Daylight

In Grantley, the average length of the day in August is 13h and 22min.
On the first day of August, sunrise is at 5:54 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 7:08 pm CDT.

Sunshine

In August, the average sunshine in Grantley 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 risk from unsafe exposure to UV radiation for the average person.
Note: The daily high UV index of 6 in August translates into this advice:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
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Frequently asked questions

How hot is August in Grantley?

In August, the average high-temperature and low-temperature in Grantley are 88.7°F (31.5°C) and 67.6°F (19.8°C) respectively. The average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, in August is estimated at 105.8°F (41°C).

What is the average humidity in August in Grantley?

The average relative humidity in August is 75%.

What is the wettest month in Grantley?

August is the month with the most rainfall in Grantley, Alabama. Rain falls for 17.8 days and accumulates 2.56" (65mm) of precipitation.

How much does it rain in Grantley in August?

In Grantley, Alabama, during August, the rain falls for 17.8 days and regularly aggregates up to 2.56" (65mm) of precipitation.

When it does not snow in Grantley?

April through November are months without snowfall in Grantley.

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

In August, the average day length in Grantley is 13h and 22min.

When is the sunrise / sunset in August in Grantley?

In August, on the first day of the month, sunrise is at 5:54 am and sunset at 7:42 pm. On the last day of the month, in Grantley, Alabama, sunrise is at 6:15 am and sunset at 7:08 pm CDT.

How long on average sun shines in August in Grantley?

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

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

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

How high is the UV index in August in Grantley?

In Grantley, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high hazard to health 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
Grantley, AL

Average temperature in August - Grantley, AL
  • Average high temperature in August: 88.7°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (49.8°F).

  • Average low temperature in August: 67.6°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (33.8°F).

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Average pressure in August
Grantley, AL

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

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Average wind speed in August
Grantley, AL

Average wind speed in August - Grantley, AL
  • Average wind speed in August: 4mph

The windiest month (with the highest average wind speed) is February (7.2mph).
The calmest month (with the lowest average wind speed) is August (4mph).

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Average humidity in August
Grantley, AL

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

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

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Average rainfall in August
Grantley, AL

Average rainfall in August - Grantley, AL
  • Average rainfall in August: 2.56"

The wettest month (with the highest rainfall) is August (2.56").
The driest month (with the least rainfall) is October (1.38").

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Average rainfall days in August
Grantley, AL

Average rainfall days in August - Grantley, AL
  • Average rainfall days in August: 17.8 days

The month with the highest number of rainy days is July (20.1 days).
The month with the least rainy days is November (7.9 days).

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Average snowfall in August
Grantley, AL

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

The month with the highest snowfall is January (0.55").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in August
Grantley, AL

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

The month with the highest number of snowfall days is February (1.5 days).
The 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
Grantley, AL

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

The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in August
Grantley, AL

Average sunshine days in August - Grantley, AL
  • Average sunshine days in August: 10.4 days

The months with the most sunshine days are October and November (20.1 days).
The month with the least sunshine days is July (8.9 days).

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Average UV index in August
Grantley, AL

Average UV index in August - Grantley, AL
  • 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
Grantley, AL

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

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 30).

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Average visibility in August
Grantley, AL

Average visibility in August - Grantley, AL
  • Average visibility in August: 5mi

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

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Grantley, Alabama, USA

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