In that July report time frame, which ended about a week ago, each dot is a location in the continental USA that experienced record high temperatures in July.
Deniers of the global warming induced climate change will not be able to connect the dots that will eventually float their boats.
It is quite easy to detect the outline of the United States when the dots are connected, which indicates that the warming this summer was wide spread across the nation, rather than only being local to a few spots:
How hot was the month of July in 2011? So hot that just by plotting the location of each daily heat record that was broken, a nearly complete image of the contiguous United States is visible [dot graphic above]. Almost 9,000 daily records were broken or tied last month, including 2,755 highest maximum temperatures and 6,171 highest minimum temperatures (i.e., nighttime records). It should be noted that the tally of records collected so far is not complete – more are expected to come in as station data from across the U.S. is mailed to the National Climatic Data Center. The statistics reported here only include weather stations with real-time electronic reporting, which accounts for about two-thirds of the locations. Final numbers should be available later in August.(NOAA). The MOMCOM science police will never be able to contain the reality as they have tried to do with the Polar Bears, by falsely accusing scientists.
Why not face up to reality and deal with the problem so that the future of civilization is not covered by a huge cloud of uncertainty as to its continued existence?
Risking billions of lives in the worship of hydrocarbon based energy sources is the most unwise misadventure any supposed civilized people could do, except perhaps drifting into the nether world of denial because of the fear of death.