Dallas Climate by Month – Rainy Season, Temperature Averages
Summary
The climate figures for Dallas are averaged from 2016–2025 observations (10 years). Annual rainfall averages about 1,401 mm.
The rainy season runs February–November. The wettest month is May with 186.8 mm across 13 rain days; the driest is July at just 72.2 mm.
The hottest month is July (average high 35°C) and the coolest is January (13.2°C).
The most comfortable time to visit Dallas is July — less rain and milder heat.
Monthly averages · 2016–2025
| Monthly averages | High | Low | Rainfall | Rainy season |
|---|---|---|---|---|
| January | 13.2° | 3.1° | 75 mm | 7 |
| February | 15.9° | 5.3° | 102 mm | 9 |
| March | 21.3° | 10.6° | 117 mm | 10 |
| April | 24.2° | 13.6° | 159 mm | 11 |
| May | 28.4° | 18.6° | 187 mm | 13 |
| June | 32.4° | 23.0° | 134 mm | 11 |
| July | 35.0° | 25.4° | 72 mm | 10 |
| August | 34.7° | 25.3° | 123 mm | 10 |
| September | 31.5° | 21.9° | 111 mm | 9 |
| October | 26.4° | 15.9° | 142 mm | 8 |
| November | 19.7° | 9.8° | 107 mm | 8 |
| December | 15.8° | 6.3° | 73 mm | 8 |