Dallas Temperatures: Averages by Month
The numbers here tell you how hot and cold the weather usually is in Dallas, Texas during each month of the year.
The average high and low temperatures are listed below by month and annually for Dallas, in both degrees Fahrenheit and Celsius.
Maximums and minimums are only part of the temperature picture. To fill in the rest, there's information on how many days a month get above or below a given temperature.
To find out how often it rises over 70, 80 or 90 °F each month in Dallas, scroll down farther. There are also counts of nights with warm temperatures and days with cold weather.
All the numbers are averages, based on climate data gathered from 1981 to 2010.
|High °F||Low °F||High °C||Low °C|
Days of Hot Weather in Dallas
From May to September, Dallas has daily temperatures of at least 70 °F. Typically 17 of those days have 100-plus degree weather.
Even winter days often reach 70 degrees. For only six times a year on average does the highest temperature of the day in Dallas stay below 40.
Number of Warm Nights a Month
Most summer nights in Dallas stay above 69 °F. From April to October, the nighttime temperature remains above 39 degrees.
How Often Dallas Has Cold Temperatures
Freezing temperatures overnight can happen in Dallas anytime from November to March, normally totalling 23 days a year. For three nights a winter, the lows drop down to 20 degrees Fahrenheit.
Most frosty nights in Dallas are followed by daytime thaws. Only on two days a year, typically, does the day's high stay below freezing.
National Climatic Data Center. NOAA's 1981-2010 Climate Normals.