Hottest and Coldest Temperatures Ever in Washington DC on December 20

On December 20th in Washington D.C., the weather fluctuates with the hottest recorded temperature being 64.9°F in 1988 and the coldest recorded temperature being 10.9°F in 2004. The average temperature on this date is 37.12°F, with an average high of 44.30°F and an average low of 29.94°F. In 1988, when the highest temperature was recorded, an interesting news item was the devastating Yellowstone fires which burned over 1.2 million acres of the national park, making it one of the largest fires in the park's history.