DENVER (CBS4) – On July 11, 1954 the temperature climbed to a sweltering 114°F in the small town of Sedgwick, located in the extreme northeast part of the state.
It tied the all-time record high first set on July 1, 1933 in Las Animas, which is located on the southeast plains in the Arkansas River Valley.
There was an unofficial temperature of 118°F measured just east of Denver on July 11, 1888, in the town of Bennett.
But recent research found the reading was a transcription error when historic weather records were digitized.
According to the National Climatic Data Center, temperatures around the state on that date were at least 15-20 degrees cooler, with the highest being 105°F observed at Glenwood Springs.