August weather forecast
Grand Prairie, TX

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.