Hottest and Coldest Temperatures Ever in Washington DC on December 09

On December 9th in Washington D.C., the weather has historically ranged from a scorching 71.1°F in 1991 to a frigid 18.0°F in 1960. The average temperature for this date is 40.87°F, with the average high at 46.79°F and the average low at 34.94°F. Amidst these temperature fluctuations, an intriguing news item from 1991 emerged - the United States and Soviet Union declared an end to the Cold War, marking a turning point in global diplomacy and relations between the two superpowers.