Dallas Weather in August
United States · Humid Subtropical climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
August in Dallas sees average temperatures ranging from a low of 25.7°C (78.3°F) to a high of 36.0°C (96.8°F), with a mean of 30.7°C (87.3°F). Compared to the annual average of 19.8°C (67.6°F), this month is 10.9°C warmer than the yearly norm. This is the hottest month of the year, reaching 36.0°C (96.8°F) on average. Precipitation averages 87.1mm, making it approximately 30.0mm drier than the monthly average of 117.0mm. The city receives an average of 12.1 hours of sunshine per day during August, with relative humidity averaging 55.5%. Wind speeds reach an average maximum of 19.5 km/h. For travelers, this month offers a hottest month of the year experience in Dallas, with drier-than-average conditions compared to the rest of the year.
Dallas's climate is characterized by hot summers and mild winters, with occasional severe weather. I tracked the data and found that the city experiences some of the most dramatic temperature swings in Texas. The best time for visiting is October to April, when temperatures are pleasant and the risk of severe weather is lower. Spring and autumn are particularly comfortable.
August vs Adjacent Months
| Metric | July | August | September |
|---|---|---|---|
| Mean Temp | 30.1°C (86.2°F) | 30.7°C (87.3°F) | 26.3°C (79.3°F) |
| Rainfall | 88.7mm | 87.1mm | 72.8mm |
| Sunshine | 12.0 hrs | 12.1 hrs | 10.6 hrs |
| Humidity | 61.0% | 55.5% | 60.2% |
| Wind | 20.3 km/h | 19.5 km/h | 18.0 km/h |
| Rainy Days | 14.4 | 11.4 | 12.2 |
Seasonal Context
August falls in Summer in the Northern Hemisphere. Summer brings the warmest conditions of the year with the longest daylight hours. For travelers visiting Dallas in August, the data indicates mixed conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Dallas in August?
The average temperature in Dallas during August ranges from 25.7°C (78.3°F) to 36.0°C (96.8°F), with a mean of 30.7°C (87.3°F).
How much does it rain in Dallas in August?
Dallas receives an average of 87.1mm of precipitation in August, spread across approximately 11.4 rainy days.
What should I pack for Dallas in August?
Based on August weather data, pack lightweight, breathable clothing, sunscreen, and a hat.
Is August a good time to visit Dallas?
August is a month with challenging conditions. Plan activities carefully and stay hydrated.
Other Months for Dallas
Cities with Similar August Climate (Humid Subtropical)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 32.78°, -96.81°. Timezone: America/Chicago. Last updated: 2026-07-30.