Hottest and Coldest Temperatures Ever in New York City on December 21

On December 21st in New York City, weather conditions varied from the lowest recorded temperature of 5.0°F in 1955 to the highest of 64.0°F in 2013. The average temperature for this date is 35.97°F, with an average high temperature of 44.36°F and an average low temperature of 27.59°F. One interesting news item from the given years is that in 1955, the first fully operational atomic power reactor, EBR-1, produced electricity using atomic energy for the first time, marking a significant milestone in the advancement of nuclear power technology.