August weather forecastLewisville, OK
August
Weather in August
August, the last month of the summer in Lewisville, is another tropical month, with temperature in the range of an average high of 92.1°F (33.4°C) and an average low of 70.3°F (21.3°C).Temperature
August's commencement is accompanied by an average high-temperature of a still tropical 92.1°F (33.4°C), diverging marginally from July's 92.5°F (33.6°C). Lewisville marks a considerable descent from the daytime apex, as the average temperature dips to a pleasant 70.3°F (21.3°C) at night throughout August.Heat index
In August, the heat index is evaluated at an extremely hot 111.2°F (44°C). Take note: Heat exhaustion and heat cramps are expected. Heatstroke can occur with prolonged effort.One should consider that heat index numbers are for shaded settings and light wind. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', takes into account both air temperature and humidity to illustrate what people actually feel. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold particular importance for children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.
Humidity
With an average relative humidity of 68%, August is the least humid month.Rainfall
In August, the rain falls for 10.5 days. Throughout August, 1.18" (30mm) of precipitation is accumulated. Throughout the year, there are 102.8 rainfall days, and 11.3" (287mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In Lewisville, the average length of the day in August is 13h and 26min.On the first day of the month, sunrise is at 6:30 am and sunset at 8:23 pm. On the last day of August, sunrise is at 6:53 am and sunset at 7:48 pm CDT.
Sunshine
July and August, with an average of 11h of sunshine, are months with the most sunshine.UV index
In Lewisville, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high daily UV index of 6 during August translates into the following directions:
Take precautions against overexposure. Protection against sun damage is needed. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Lewisville, OK
- Average high temperature in August: 92.1°F
The warmest month (with the highest average high temperature) is July (92.5°F).
The month with the lowest average high temperature is January (48.2°F).
- Average low temperature in August: 70.3°F
The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (32.2°F).
Average pressure in August
Lewisville, OK
- Average pressure in August: 29.95"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Lewisville, OK
- Average wind speed in August: 5.7mph
The windiest month (with the highest average wind speed) is April (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in August
Lewisville, OK
- Average humidity in August: 68%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (68%).
Average rainfall in August
Lewisville, OK
- Average rainfall in August: 1.18"
The wettest month (with the highest rainfall) is May (1.46").
The driest months (with the least rainfall) are January, February and November (0.67").
Average rainfall days in August
Lewisville, OK
- Average rainfall days in August: 10.5 days
The month with the highest number of rainy days is July (11.6 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in August
Lewisville, OK
- Average snowfall in August: 0"
The month with the highest snowfall is December (0.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Lewisville, OK
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Lewisville, OK
- Average daylight in August: 13h and 24min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in August: 11h and 0min
The months with the most sunshine are July and August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in August
Lewisville, OK
- Average sunshine days in August: 17.1 days
The month with the most sunshine days is January (22.9 days).
The month with the least sunshine days is July (16.6 days).
Average UV index in August
Lewisville, OK
- Average UV index in August: 6
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in August
Lewisville, OK
- Average cloud cover in August: 22
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in August
Lewisville, OK
- 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).
