August weather forecastGreenville, AL
August
Weather in August
The last month of the summer, August, is another hot month in Greenville, Alabama, with an average temperature varying between 72°F (22.2°C) and 90.9°F (32.7°C).Temperature
Greenville transitions into August recording an average high-temperature of a still hot 90.9°F (32.7°C), closely aligning with the preceding month's temperature. Greenville anticipates an average minimum temperature of 72°F (22.2°C) in the month of August.Heat index
In August, the heat index is estimated at a life-threatening hot 113°F (45°C). Be on the lookout: Heat cramps and heat exhaustion are anticipated. Continued exertion can result in heatstroke.Note that heat index values are valued for light wind and location in the shade. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is found by incorporating humidity levels into the air temperature measurement. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. 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 extremely vital to babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.
Humidity
In August, the average relative humidity in Greenville is 76%.Rainfall
August is the month with the most rainfall. Rain falls for 23.4 days and accumulates 4.69" (119mm) of precipitation.Snowfall
April through November are months without snowfall.Daylight
In August, the average length of the day is 13h and 17min.On the first day of the month, sunrise is at 6:02 am and sunset at 7:42 pm. On the last day of August, sunrise is at 6:21 am and sunset at 7:11 pm CDT.
Sunshine
In August, the average sunshine is 10.2h.UV index
In Greenville, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.Note: The daily maximum UV index of 6 in August interprets into the following advice:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Greenville, AL
- Average high temperature in August: 90.9°F
The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is January (56.1°F).
- Average low temperature in August: 72°F
The months with the highest average low temperature are July and August (72°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).
Average pressure in August
Greenville, AL
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).
Average wind speed in August
Greenville, AL
- Average wind speed in August: 4.7mph
The windiest month (with the highest average wind speed) is January (7.4mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in August
Greenville, AL
- Average humidity in August: 76%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Greenville, AL
- Average rainfall in August: 4.69"
The wettest month (with the highest rainfall) is August (4.69").
The driest month (with the least rainfall) is November (2.09").
Average rainfall days in August
Greenville, AL
- Average rainfall days in August: 23.4 days
The month with the highest number of rainy days is July (23.6 days).
The month with the least rainy days is November (8 days).
Average snowfall in August
Greenville, AL
- Average snowfall in August: 0"
The months with the highest snowfall are January and February (0.2").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in August
Greenville, AL
- Average snowfall days in August: 0 days
The months with the highest number of snowfall days are January and February (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in August /
Average sunshine in August
Greenville, AL
- Average daylight in August: 13h and 18min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in August: 10h and 12min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).
Average sunshine days in August
Greenville, AL
- Average sunshine days in August: 6 days
The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is July (5 days).
Average UV index in August
Greenville, AL
- Average UV index in August: 6
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in August
Greenville, AL
- Average cloud cover in August: 34
The month with the most cloud cover is December (Cloud cover 46).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility in August
Greenville, AL
- Average visibility in August: 5mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
