Data as of September 7, 2011:
Number of Days of 100 degrees or higher in DFW in 2011: 66
Consecutive Days of 100 degrees or higher in 2011: 40 (July 2 to August 10)
Days over 100 Degrees in 1980: 69
Consecutive Days Over 100 in 1980: 42
1980 had the most (69), though 2011 may pass this.
The highest recorded temperature in Texarkana Texas was one hundred and seventeen degrees or 47 degrees C. This occurred in 1936.
The highest reliable temperature reading was 50.6 °C (123.1 °F) in Alwar, Rajasthan in 1955
31, including August 3.
As of and including July 23, 2011, Laredo had recorded 88 days of at least 100 degrees, including 23 consectuvie (and counting). This includes every day thus far in July, and every day but two in June.
1980 had the most (69), though 2011 may pass this.
Dallas,Texas
In 2011, the population of Dallas was 2.46 million.
North Texas NOW - 2011 The Dallas Arboretum 1-19 was released on: USA: 10 May 2011
Yes supposedly on Saturday
North Texas NOW - 2011 A Summer Day in Dallas 1-20 was released on: USA: 12 May 2011
North Texas NOW - 2011 A Fall Day in Dallas 2-6 was released on: USA: 4 October 2011
Most Eligible Dallas - 2011 Everythings Bigger in Texas 1-7 was released on: USA: 3 October 2011
North Texas NOW - 2011 The Dallas Contemporary 3-2 was released on: USA: 23 February 2012
When I Was King - 2011 was released on: USA: 4 February 2011 (Dallas, Texas)
69, in 1980. As of the end of August 2011, however, there have been 65 (with more in the forecast).
It depends a lot where in Texas. Dallas has had 67, for example, while Waco has had 81. Many of the Texas National Weather Service Offices are tracking this information with links on their homepage. You can start at the Dallas/Fort Worth NWS that I have linked below and look around at some of the other offices in Texas as well.