Dasie Linnet

100 Degree Days In Dallas 2025. As of december 8, there have been 23 days this year where the high temperature has reached at least 100 degrees fahrenheit in dallas, texas. A typical summer sees roughly 20 such days.

Finishing with an average temp of 86.1 f, which is 1.7 f above normal. While meteorological summer has ended, we can’t give a final count of 100 f days just yet as we.