The hottest day on record was this past Tuesday according to scientific data; the average temperature on Tuesday was 62.92 degrees Fahrenheit.

U.S. Scientists now think that July 4 may have been the hottest day on record in the past 125,000 years as a result of a dangerous trifecta of rising global temperatures brought on by climate change, the reemergence of the El Niño pattern, and the start of summer in the northern hemisphere.

On Tuesday, 57 million Americans were subjected to hazardous heat. The Antarctic is hotter than usual during its winter, and temperatures in the north of Africa reached 122 degrees Fahrenheit all at the same time that China was engulfed in a scorching heat wave.

Paulo Ceppi, a climate scientist at London's Grantham Institute, explained in an email on Wednesday how a model that uses information from weather stations, ships, ocean buoys, and satellites was used to determine Tuesday's global average air temperature.

Instruments have been used to measure global temperatures since the middle of the 19th century, but for temperatures before that, scientists have relied on proxy data gathered from ice cores and tree rings.

According to the same data, the last time the record was broken was on Monday when the temperature was 62.62 degrees Fahrenheit. Prior to that, on August 14, 2016, during the previous El Niño cycle, 62.46 degrees Fahrenheit was recorded as the highest average temperature ever.

Experts predict that temperatures will likely rise even further unless steps are taken to reduce carbon emissions.