- All-time highest 24-hour snowfall: 67 inches (Echo Summit Sierra at Tahoe on Jan. 5, 1982) California Annual Temperatures and Records - coolweather.net Death Valley holds the record for the hottest place on earth. During the heat wave that peaked with that record, five consecutive days reached 129 F (54C) or above. We may have just seen the world's highest recorded temperature ever //-->,