Yesterday, July 30, 2019, the high temperature hit 100°F. This marks the first official 100 degree day for the 2019 summer season at DFW. By no means a record late first 100 degree day (that is in Septemeber), but it is quite rare for us to go all of June and most of July without hitting 100°F. There are only two years on record where we did not hit 100°F at all, that is the summers of 1906 and 1973.