Climate averages 1991–2020
Dallas weather
in July.
A very hot, moderately wet month: one of the warmest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a very hot month in Dallas: daytime highs average 34.5°C and nights cool to about 25.3°C. By daytime temperature it is one of the warmest months of the year.
Expect about 41 mm of rain on roughly 6 days, which makes July a moderately wet month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 14 h 05 min on an average July day.
The nearest other city in this atlas is Irving (14 km away). In July its highs average 34.5°C, about as warm as Dallas, with 41 mm of rain.
Among the 498 cities listed in the United States, Dallas ranks joint 45th of 498 for the warmest July highs and joint 177th of 498 for the driest July (rainfall, lowest first). The mean July high of those 498 cities is 30.3°C; Dallas is 4.2°C warmer than that mean.
From July to August, average highs stay level at 34.5°C, and monthly rainfall rises from 41 mm to 53 mm.
The annual picture
July in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Dallas climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 13.2°C3.8°C | 3.8°C | 71 | 7.1 | 10.310 h |
| February | 15.6°C5.7°C | 5.7°C | 76 | 7.7 | 11.011 h |
| March | 19.7°C9.6°C | 9.6°C | 100 | 9.5 | 12.012 h |
| April | 24.0°C13.9°C | 13.9°C | 107 | 8.8 | 13.013 h |
| May | 27.9°C18.7°C | 18.7°C | 127 | 10.6 | 13.814 h |
| June | 31.9°C23.0°C | 23.0°C | 83 | 8.4 | 14.314 h |
| July, selected | 34.5°C25.3°C | 25.3°C | 41 | 5.7 | 14.114 h |
| August | 34.5°C25.4°C | 25.4°C | 53 | 5.4 | 13.413 h |
| September | 30.7°C21.5°C | 21.5°C | 63 | 5.9 | 12.412 h |
| October | 25.2°C15.6°C | 15.6°C | 97 | 7.7 | 11.411 h |
| November | 18.8°C9.6°C | 9.6°C | 88 | 7.2 | 10.511 h |
| December | 14.1°C5.0°C | 5.0°C | 89 | 6.9 | 10.010 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
July in nearby cities
- Irving in JulyUnited States · 14 kmHigh 34.5°C · Low 25.3°C · 41 mm rain
- Grand Prairie in JulyUnited States · 18 kmHigh 34.5°C · Low 25.2°C · 41 mm rain
- Mesquite in JulyUnited States · 19 kmHigh 34.2°C · Low 25.0°C · 43 mm rain
- Richardson in JulyUnited States · 20 kmHigh 34.0°C · Low 24.9°C · 46 mm rain
- Carrollton in JulyUnited States · 21 kmHigh 34.3°C · Low 25.3°C · 45 mm rain
- Garland in JulyUnited States · 21 kmHigh 34.0°C · Low 24.9°C · 46 mm rain
- Plano in JulyUnited States · 28 kmHigh 33.8°C · Low 24.9°C · 46 mm rain
- Arlington (Texas), United States in JulyUnited States · 29 kmHigh 34.4°C · Low 25.1°C · 41 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Dallas) is explained once on the Dallas year overview and on the Sources, method and limits page.