August weather forecast
Grasmere, AL

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Weather in August

The last month of the summer, August, is another tropical month in Grasmere, Alabama, with an average temperature fluctuating between 89.2°F (31.8°C) and 69.8°F (21°C).

Temperature

The transition into August reveals an average high-temperature of a still hot 89.2°F (31.8°C), mirroring a close resemblance to July. Throughout August nights, Grasmere experiences a consistent temperature average of 69.8°F (21°C).

Heat index

For August, the heat index is appraised at a scorching 107.6°F (42°C). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
When referencing the heat index, its values are suitable for shady environments and light breezes. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an aggregate value of air's warmth and moisture to show the human-felt temperature. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

The average relative humidity in August is 75%.

Rainfall

The month with the most rainfall is August, when the rain falls for 21.4 days and typically aggregates up to 4.13" (105mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In August, the average length of the day is 13h and 21min.
On the first day of the month, sunrise is at 5:58 am and sunset at 7:44 pm. On the last day of August, sunrise is at 6:19 am and sunset at 7:11 pm CDT.

Sunshine

In Grasmere, the average sunshine in August is 10h.

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 exposure to the Sun's UV rays for ordinary individuals.
Note: In August, a regular UV index of 6 translates into these guidelines:
Deter overexposure. Protecting against the sun's effects is essential. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Updated: Jul 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August?

During August, Grasmere experiences an average high-temperature of 89.2°F (31.8°C) and a low-temperature of 69.8°F (21°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 appraised at 107.6°F (42°C).

What is the average humidity in August?

The average relative humidity in August is 75%.

What is the rainiest month?

August is the month with the most rainfall. Rain falls for 21.4 days and accumulates 4.13" (105mm) of precipitation.

How much does it rain in August?

In Grasmere, in August, during 21.4 rainfall days, 4.13" (105mm) 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 August, the average day length is 13h and 21min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 5:58 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 7:11 pm CDT.

How long on average sun shines in August?

The average sunshine duration in August is 10h.

When is the highest UV index in Grasmere?

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

What is the UV index intensity 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
Grasmere, AL

Average temperature in August - Grasmere, AL
  • Average high temperature in August: 89.2°F

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (50.9°F).

  • Average low temperature in August: 69.8°F

The month with the highest average low temperature is July (70.2°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).

Average pressure in August
Grasmere, AL

Average pressure in August - Grasmere, 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
Grasmere, AL

Average wind speed in August - Grasmere, AL
  • Average wind speed in August: 4.2mph

The windiest month (with the highest average wind speed) is February (7.4mph).
The calmest months (with the lowest average wind speed) are July and August (4.2mph).

Average humidity in August
Grasmere, AL

Average humidity in August - Grasmere, 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 (72%).

Average rainfall in August
Grasmere, AL

Average rainfall in August - Grasmere, AL
  • Average rainfall in August: 4.13"

The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is October (2.28").

Average rainfall days in August
Grasmere, AL

Average rainfall days in August - Grasmere, AL
  • Average rainfall days in August: 21.4 days

The month with the highest number of rainy days is July (21.7 days).
The month with the least rainy days is November (8.4 days).

Average snowfall in August
Grasmere, AL

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

The month with the highest snowfall is January (0.83").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in August
Grasmere, AL

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

The months with the highest number of snowfall days are January and February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in August: 10h and 0min

The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in August
Grasmere, AL

Average sunshine days in August - Grasmere, AL
  • Average sunshine days in August: 7.8 days

The month with the most sunshine days is October (19.3 days).
The month with the least sunshine days is July (6.9 days).

Average UV index in August
Grasmere, AL

Average UV index in August - Grasmere, 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, February and December (UV index 3).

Average cloud cover in August
Grasmere, AL

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

The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are June, September and October (Cloud cover 31).

Average visibility in August
Grasmere, AL

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

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

Grasmere, Alabama, USA

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