Dallas Weather by Month
Twelve months of Dallas, United States weather — averages from 2006–2025.
Dallas's warmest month is August (average high 35.3°C (95.5°F)) and the coolest is January (13.4°C (56.1°F)). The most rain falls in May (about 157 mm), and July is the driest (about 59 mm). July is the sunniest, with about 12.1 hours of sunshine a day.
Best months to visit Dallas
Ranked within Dallas's own year by temperature comfort, rainy days and sunshine — historical averages, not a forecast.
Dallas month by month
January
GoodHigh 13.4°C (56.1°F)
Low 3.3°C (37.9°F)
- Rainfall
- 72 mm (2.8 in)
- Rainy days
- 6 rainy days
- Sunshine
- 7.5 h sunshine / day
February
GoodHigh 15.5°C (59.9°F)
Low 5.1°C (41.2°F)
- Rainfall
- 80 mm (3.1 in)
- Rainy days
- 8 rainy days
- Sunshine
- 7.4 h sunshine / day
March
GreatHigh 20.8°C (69.4°F)
Low 10.2°C (50.4°F)
- Rainfall
- 110 mm (4.3 in)
- Rainy days
- 10 rainy days
- Sunshine
- 8.3 h sunshine / day
April
GreatHigh 24.4°C (75.9°F)
Low 14°C (57.2°F)
- Rainfall
- 125 mm (4.9 in)
- Rainy days
- 10 rainy days
- Sunshine
- 9.5 h sunshine / day
May
GoodHigh 28.3°C (82.9°F)
Low 18.7°C (65.7°F)
- Rainfall
- 157 mm (6.2 in)
- Rainy days
- 12 rainy days
- Sunshine
- 10 h sunshine / day
June
FairHigh 32.7°C (90.9°F)
Low 23.3°C (73.9°F)
- Rainfall
- 106 mm (4.2 in)
- Rainy days
- 9 rainy days
- Sunshine
- 11.6 h sunshine / day
July
FairHigh 34.8°C (94.6°F)
Low 25.4°C (77.7°F)
- Rainfall
- 59 mm (2.3 in)
- Rainy days
- 8 rainy days
- Sunshine
- 12.1 h sunshine / day
August
FairHigh 35.3°C (95.5°F)
Low 25.8°C (78.4°F)
- Rainfall
- 72 mm (2.8 in)
- Rainy days
- 7 rainy days
- Sunshine
- 12 h sunshine / day
September
GoodHigh 31.4°C (88.5°F)
Low 21.9°C (71.4°F)
- Rainfall
- 87 mm (3.4 in)
- Rainy days
- 7 rainy days
- Sunshine
- 10.4 h sunshine / day
October
GreatHigh 26°C (78.8°F)
Low 15.8°C (60.4°F)
- Rainfall
- 118 mm (4.6 in)
- Rainy days
- 7 rainy days
- Sunshine
- 9.1 h sunshine / day
November
GreatHigh 19.5°C (67.1°F)
Low 9.8°C (49.6°F)
- Rainfall
- 93 mm (3.6 in)
- Rainy days
- 7 rainy days
- Sunshine
- 7.9 h sunshine / day
December
GoodHigh 15°C (59°F)
Low 5.6°C (42.1°F)
- Rainfall
- 81 mm (3.2 in)
- Rainy days
- 8 rainy days
- Sunshine
- 6.8 h sunshine / day
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Based on 20 years of historical weather data (2006–2025) from Open-Meteo. Monthly averages, not a forecast.