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Typical September weather

Dallas

Texas · September

Long summer tail, then the State Fair changes the mood.

89° days
69° nights

about 4 rainy days · 12½ hours of daylight

What to pack

What September feels like

The heat holds through most of the month, but the fair opens at the end of it and Big Tex resets the city's whole calendar. The first cool front usually arrives in the last week and it is a genuine event.

Expect about 4 days with real rain — enough to notice, not enough to plan around. There’s a little humidity in the air, but nothing that changes your plans. about 16 afternoons top 90°.

The numbers

Typical high89°
Typical low69°
Days with real rain4
Total rain2.7 in
Humiditya touch humid
Sunrise / sunset (mid-month)7:11 am / 7:33 pm

How September compares

See the whole year in Dallas ›