Dallas - Hottest Decades





Ranked here are the hottest decades on record for Dallas, Texas. The lists include decades when Dallas had the highest average temperatures, the most hot days and the fewest cold days. These extremes are for temperatures observed at the Dallas Love Field Airport and cover eight decades, from the 1940s to the 2010s.

That is when Dallas had weather measurements that are consistent and complete enough to compare decades. Each decade comprises a standard 10-year range. For instance, the 1990s includes measurements from Jan 1, 1990 to Dec 31, 1999. Links to the data behind these lists are in the References section on this page.

Hottest High Temperatures

Average daily maximum temperature at Dallas
High °F Decade High °C
Highest 78.4 2010s 25.8
Runner-up 77.3 1990s 25.1

Warmest Low Temperatures

Average daily minimum temperature at Dallas
Low °F Decade Low °C
Highest 58.7 2010s 14.9
Runner-up 57.8 2000s, 1990s 14.3

Most Warm Days

Total days per year on average when Dallas had temperatures of at least 70 °F (21 °C)
Days Decade
Highest 260 2010s
Runner-up 255 2000s

Most Hot Days

Total days per year on average when Dallas had temperatures of at least 90 °F (32 °C)
Days Decade
Highest 117 2010s
Runner-up 110 1950s

Fewest Freezing Days

Total days per year on average when Dallas had temperatures of 32 °F (0 °C) or lower
Days Decade
Lowest 20 1990s
Runner-up 24 2010s

How Much Hotter are 2010s?

Compared with averages for the previous 50 years (1960 to 2009), the 2010s in Dallas had:

  • 17 more days each year with temperatures of 90 °F and higher
  • 1.7 °F higher daily maximum temperatures (1.0 °C)
  • 2.0 °F higher daily minimum temperatures (1.1 °C)
  • 7 fewer days a year with freezing temperatures
References

Current Results. 2020. Dallas TX Temperature Averages by Decade

Jay Lawrimore, Ron Ray, Scott Applequist, Bryant Korzeniewski, Matthew Menne. 2016. Global Summary of the Year, Version 1.0. NOAA National Centers for Environmental Information.

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