Climate Science has made the Excel data file of the 600 record high temperatures used in the previous days' graphs available:
Thanks to Dr. Pielke and Dallas Staleyhttp://climatesci.colorado.edu/comment-uploads/us_extreme_temp.xls Click on the "Temperature Database" tab at the bottom.
http://climatesci.colorado.edu/comment-uploads/record_low_temp.jpg
http://climatesci.colorado.edu/comment-uploads/record_high_temp.jpg