Answer: -128.6 °F at Vostok Station, Antarctica (pictured).

Vostok, a Russian research facility, is located at the center of the East Antarctic Ice Sheet. Daily July temperatures there average -85 °. Summer temps can reach a balmy  -16 °F. Once, on January 11, 2002, the mercury read a scorching 10 °F.

Chad Vander Veen  |  Associate Editor