August weather forecastLewisville, AR
August
Weather in August
The last month of the summer, August, is another tropical month in Lewisville, Arkansas, with temperature in the range of an average low of 72.1°F (22.3°C) and an average high of 93.7°F (34.3°C).Temperature
Temperature records mark August as the warmest month, with highs averaging 93.7°F (34.3°C) and lows at 72.1°F (22.3°C).Heat index
The heat index value during August is calculated to be a blazing hot 116.6°F (47°C). Careful: Heat exhaustion and heat cramps are anticipated. With ongoing exertion, heatstroke becomes a possibility.Keep in mind the heat index values are meant for areas in shade and with light wind. 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 an estimation of the warmth sensation when considering humidity levels. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.
Humidity
The least humid month is August, with an average relative humidity of 69%.Rainfall
In Lewisville, during August, the rain falls for 14.4 days and regularly aggregates up to 2.6" (66mm) of precipitation. Throughout the year, there are 152.1 rainfall days, and 36.42" (925mm) of precipitation is accumulated.Snowfall
April through December are months without snowfall.Daylight
In Lewisville, the average length of the day in August is 13h and 21min.On the first day of the month, sunrise is at 6:27 am and sunset at 8:13 pm. On the last day of August, sunrise is at 6:48 am and sunset at 7:40 pm CDT.
Sunshine
August has the most sunshine of the year, with an average of 10.5h of sunshine.UV index
June through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: The daily high UV index of 7 during August translates into the following recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Lewisville, AR
- Average high temperature in August: 93.7°F
The warmest month (with the highest average high temperature) is August (93.7°F).
The month with the lowest average high temperature is January (52°F).
- Average low temperature in August: 72.1°F
The month with the highest average low temperature is July (72.9°F).
The coldest month (with the lowest average low temperature) is January (36.7°F).
Average pressure in August
Lewisville, AR
- Average pressure in August: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Lewisville, AR
- Average wind speed in August: 5mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in August
Lewisville, AR
- Average humidity in August: 69%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is August (69%).
Average rainfall in August
Lewisville, AR
- Average rainfall in August: 2.6"
The wettest month (with the highest rainfall) is April (4.88").
The driest months (with the least rainfall) are January and November (2.36").
Average rainfall days in August
Lewisville, AR
- Average rainfall days in August: 14.4 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (9.8 days).
Average snowfall in August
Lewisville, AR
- Average snowfall in August: 0"
The month with the highest snowfall is February (0.43").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days in August
Lewisville, AR
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (0.9 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
Lewisville, AR
- Average daylight in August: 13h and 24min
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 30min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in August
Lewisville, AR
- Average sunshine days in August: 14.5 days
The months with the most sunshine days are January and October (19.2 days).
The month with the least sunshine days is February (14 days).
Average UV index in August
Lewisville, AR
- Average UV index in August: 7
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in August
Lewisville, AR
- Average cloud cover in August: 28
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in August
Lewisville, AR
- Average visibility in August: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
