Fort Collins, Colorado is most famous for Balloon Boy, and Boulder, Colorado is most famous for Jon Benet and Ward Churchill.
Both are hotbeds of Climate Science, with familiar names like Roger Pielke (Jr. and Sr.) Walt Meier, William Gray, Kevin Trenberth and Mark Sereeze. Both are of similar size (Boulder 91,000 and Fort Collins 130,000) and located in very similar geographical environments along the Front Range – about 50 miles apart. The big difference is that Fort Collins has tripled in size over the last 40 years, and Boulder has grown much more slowly. Fort Collins population is shown in blue and Boulder in red below.
You can guess the difference in UHI effects, but read the whole thing. Location of temp stations plays a role, natch.Update: And by the way, if you're not already haunting WUWT, start doing so at once. It's the premier example right now of what blogs can do to right the balance between "consensus" (as voiced by the powers-that-want-to-be) and the truth.
Update: Or at least, the fact that we don't know the truth.