August weather forecast
Dallas, TX

As summer reaches its zenith, August in Dallas ushers in sweltering temperatures, sunny skies, and sporadic rainfall. The city's weather continues its July patterns, with a further decrease in rainfall and steady wind conditions. Notably, August brings the year's highest temperature, a trend that subsides in the upcoming fall season. Maximum sunshine duration is packed into slightly shorter daylight hours, encouraging everyone to make the most of the sunlight. Despite the heat, the clear skies and relatively low precipitation make this a popular time for touring this vibrant city.

Temperature

Dallas's August weather, with an average high temperature of 96.1°F (35.6°C) and an average low temperature of 77.2°F (25.1°C), tends to be the warmest of the year.

Heat index

The heat index in August is evaluated at a blistering 111.2°F (44°C). Attention: Heat exhaustion and heat cramps are anticipated. Prolonged effort can result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', reflects the blend of air temperature and relative humidity to give a temperature impression. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

With an average relative humidity of 55%, August is the least humid month.

Rainfall

In Dallas, during August, the rain falls for 13.3 days and regularly aggregates up to 2.6" (66mm) of precipitation. Throughout the year, there are 141.2 rainfall days, and 30.12" (765mm) of precipitation is accumulated.

Snowfall

In Dallas, snow does not fall in March through October.

Daylight

The average length of the day in August is 13h and 19min.
On the first day of the month, sunrise is at 6:41 am and sunset at 8:25 pm. On the last day of August, sunrise is at 7:01 am and sunset at 7:52 pm CDT.

Sunshine

With an average of 11.1h of sunshine, August has the most sunshine of the year.

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index of 7 during August leads to these instructions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. 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. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.