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According to WMO, the lowest temperature noted was -89.2 C, recorded on July 21, 1983, in Vostok, Antarctica. Yes, Celsius, not Fahrenheit. In the latter, that's minus 128.5 degrees.
An absence of solar radiation, clear skies, little vertical mixing, calm air for a long duration and high elevation (3,420 meters, 11,220 feet) accounted for the frigid weather.
With an average high of 46.7 C (116 F) in July, summer in Death Valley, California, can be baking.
But it was the summer of 1913 that entered the record books, acknowledged officially as the hottest temperature ever recorded at 56.7 C (134 F) in recent years, according to WMO.