August weather forecastGrand Prairie, TX
August
Weather in August
In Grand Prairie, the swelter of August injects the city with a last stretch of intense summer heat. Long, sunny days dominate the city's climate, uninterrupted by rare rainfall and breeze. However, the omnipresent summer wind slows down to a gentle 7mph (11.3km/h), allowing for a respite from the otherwise oppressive heat. Stifling temperatures persist in August, hitting their zenith at an average high of 96.3°F (35.7°C). As the heat transition continues to taper off, the onset of September comes with a promise of respite.Temperature
August brings the highest temperatures in Grand Prairie, with an average high of 96.3°F (35.7°C) and an average low of 77.4°F (25.2°C).Heat index
The heat index in August is computed to be an extremely hot 111.2°F (44°C). Vigilance: Heat cramps and heat exhaustion are likely. The likelihood of heatstroke increases with continued activity.Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. The body is at risk of dehydration and related complications when it fails to shed excessive heat.
Humidity
August is the least humid month, with an average relative humidity of 54%.Rainfall
In Grand Prairie, during August, the rain falls for 9 days and regularly aggregates up to 0.79" (20mm) of precipitation. In Grand Prairie, during the entire year, the rain falls for 91.2 days and collects up to 8.11" (206mm) of precipitation.Snowfall
January, March through December are months without snowfall.Daylight
In Grand Prairie, the average length of the day in August is 13h and 19min.On the first day of August, sunrise is at 6:42 am and sunset at 8:26 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 7:53 pm CDT.
Sunshine
In Grand Prairie, the average sunshine in August is 10.9h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 7 during August translates into the following directions:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Grand Prairie, TX
- Average high temperature in August: 96.3°F
The warmest month (with the highest average high temperature) is August (96.3°F).
The month with the lowest average high temperature is January (54.9°F).
- Average low temperature in August: 77.4°F
The month with the highest average low temperature is August (77.4°F).
The coldest month (with the lowest average low temperature) is January (39.2°F).
Average pressure in August
Grand Prairie, TX
- Average pressure in August: 29.93"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Grand Prairie, TX
- Average wind speed in August: 7mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is September (6.7mph).
Average humidity in August
Grand Prairie, TX
- Average humidity in August: 54%
The month with the highest relative humidity is May (71%).
The month with the lowest relative humidity is August (54%).
Average rainfall in August
Grand Prairie, TX
- Average rainfall in August: 0.79"
The wettest month (with the highest rainfall) is May (1.26").
The driest month (with the least rainfall) is February (0.31").
Average rainfall days in August
Grand Prairie, TX
- Average rainfall days in August: 9 days
The month with the highest number of rainy days is September (10.8 days).
The month with the least rainy days is January (4 days).
Average snowfall in August
Grand Prairie, TX
- Average snowfall in August: 0"
The month with the highest snowfall is February (0.16").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in August
Grand Prairie, TX
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in August /
Average sunshine in August
Grand Prairie, TX
- Average daylight in August: 13h and 18min
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 54min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in August
Grand Prairie, TX
- Average sunshine days in August: 19 days
The month with the most sunshine days is January (25.6 days).
The month with the least sunshine days is September (16.5 days).
Average UV index in August
Grand Prairie, TX
- Average UV index in August: 7
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in August
Grand Prairie, TX
- Average cloud cover in August: 20
The month with the most cloud cover is March (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in August
Grand Prairie, TX
- 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).





