How warm was summer 2010 compared to 2009? This heat map (like, a REAL heat map) shows where the hot and cold spots are. I like the light blue on the West coast, where I was this summer, much better than the dark orange on the East!

How warm was summer 2010 compared to 2009? This heat map (like, a REAL heat map) shows where the hot and cold spots are. I like the light blue on the West coast, where I was this summer, much better than the dark orange on the East!