Hottest and Coldest Temperatures Ever in Washington DC on December 18

On December 18th in Washington D.C., the weather typically experiences an average temperature of 38.39°F, with an average high of 44.81°F and an average low of 31.96°F. Historical records show that the highest temperature ever recorded on this date was 73.9°F in 2006, while the coldest temperature was 16.0°F in 1989. In 1989, an intriguing news item in Washington D.C. was the fall of the Berlin Wall, symbolizing the end of the Cold War and bringing hope for a new era of peace and unity.