Today, Houston hit a record high of 105 at Intercontinental Airport. The record high is 109 set on September 4, 2000. One wonders is it possible for Houston to hit +110 or even 120? The answer is yes, especially with all the concrete and development in Houston and surrounding area. Houston is way more likely to see 100 degree days than single digit frigid temperatures. Only four instances of that happening, twice in 1899, 1930, and 1989. Also, Houston is more likely to see 100 degree days than below 20 days in Houston. However, some summers do not see 100 degree days, last happened in 1997.
http://forums.khou.com/viewtopic.php?f=2&t=583
