Tracking the Teletherms: The spatiotemporal dynamics of the hottest and coldest days of the year [arXiv]

Peter Sheridan Dodds, Lewis Mitchell, Andrew J. Reagan, and Christopher M. Danforth

Teletherm map flipbooks for the 100 years spanning 1913–2012:

Best to download these files and view locally in a pdf viewer set up with a single (rather than continuous) page display. Flip, flip, flip.