July is the hottest month in Washington DC with an average temperature of 27°C (80°F) and the coldest is January at 4°C (38°F) with the most daily sunshine hours at 9 in July. The wettest month is May with an average of 100mm of rain..
Sorted by popularity:
Sunrise 07:00
Sunset 16:49
Sunrise 07:00
Sunset 16:49