Dallas weather in September
September in Dallas averages 90°F by day and 70°F at night, with 3.1 inches of precipitation. It is the 4th-warmest and 7th-wettest month of the year here.
- Average high
- 90°F-7° vs August
- Average low
- 70°F0 nights below freezing
- Precipitation
- 3.1 in4 days with 0.1 in. or more
- Snow
- 0.0 in17 days at 90°F+
Is September a good time to visit Dallas?
September is hot. Average highs reach 90°F, with about 17 days at 90°F or more. The most comfortable months overall are March to April and November.
What to do in Dallas in September
Mix it up: Dallas Museum of Art, George W. Bush Presidential Center, Texas Theatre, Nasher Sculpture Center. All things to do in Dallas.
On September 15 the sun rises at 7:11 am and sets at 7:32 pm, giving 12h 22m of daylight. Daylight all year.
What to pack for Dallas in September
- Light, breathable clothes, a hat and sunscreen; carry water
Based on 30-year averages, not a forecast. Check the forecast a few days before you go.
September nearby
| City | Distance | High | Low | Precip. |
|---|---|---|---|---|
| Dallas | 90°F | 70°F | 3.1 in | |
| Mesquite, TX | 10 mi | 90°F | 70°F | 3.1 in |
| Richardson, TX | 13 mi | 90°F | 70°F | 3.1 in |
| Irving, TX | 13 mi | 89°F | 69°F | 2.7 in |
| Garland, TX | 13 mi | 90°F | 70°F | 3.1 in |
| Grand Prairie, TX | 14 mi | 89°F | 69°F | 2.7 in |
| Carrollton, TX | 17 mi | 90°F | 70°F | 3.1 in |
Frequently asked questions
What is the weather like in Dallas in September?
In September, Dallas averages a high of 90°F and a low of 70°F, with 3.1 inches of precipitation (NOAA 1991-2020 normals).
Is September a good time to visit Dallas?
September is hot in Dallas, with average highs of 90°F. Plan outdoor time for mornings and evenings.
Does it snow in Dallas in September?
Rarely. The September snowfall normal is under half an inch.
Before and after: Dallas in August and Dallas in October. All twelve months: Dallas weather by month.
NOAA NCEI 1991-2020 climate normals, station Dallas Love Field, TX, 7.4 miles from the city center.