Dallas weather in May
May in Dallas: hot, soaked — a great time to visit.
#8 of 12 months in Dallas · #423 of 604 destinations to visit in May · comfort 74/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Dallas climate normals — May
| Daytime high | 28°C / 83°F | 🥵 hot |
|---|---|---|
| Nighttime low | 19°C / 66°F | |
| Feels like (high) | 30°C / 86°F | |
| Rainfall | 176 mm / 6.9 in | ⛈ soaked |
| Rainy days | 12 days | |
| Humidity | 69% | 💧 humid |
| Dew point | 18°C / 64°F | |
| Sunshine | 9.5 h/day | |
| Daylight | 13.9 h | |
| Wind | 21 km/h / 13 mph | |
| Air quality (US AQI) | 60 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Dallas?
Loading map…
Dallas in May — FAQ
- Is May a good time to visit Dallas?
- May in Dallas: hot, soaked — a great time to visit. It ranks #8 of 12 months for Dallas on SeasonMap's comfort score (74/100).
- What is the weather like in Dallas in May?
- In May, Dallas averages a daily high of 28.2°C and a low of 19.1°C, with about 175.5 mm of rain over roughly 12 rainy days.
- What is the air quality in Dallas in May?
- Dallas has a mean US Air Quality Index of about 60 in May.