By the end of the century, temperatures in the Dallas area could reach 90 degrees or above for nearly five months a year, according to an analysis by The New York Times and the Climate Impact Lab. The report, “How Much Hotter Is Your Hometown Than When You Were Born?”, compares historical data from 1960 with projected temperature increases through 2089. In Dallas in 1960, there were 98 days on average when temperatures reached 90 degrees or higher. In 1980, that number had dropped slightly, to 93. Today, it's 106 days.