Average Temperatures and Rainfall for Washington, D.C.

Average annual temperatures for Washington, D.C. (15°C/59°F) are slightly above the average for United States (13°C/55°F).

Average annual rainfall for Washington, D.C. (1,247mm/49 inches) is significantly above the average for United States (1,039mm/41 inches).

What is the warmest or hottest month in Washington, D.C.?

July is the hottest or warmest month in Washington, D.C., with an average maximum temperate of 32°C/90°F.

What is the coldest or coolest month in Washington, D.C.?

January is the coolest or coldest month in Washington, D.C., with an average minimum temperate of -1°C/30°F.

What is the most rainy or wettest month in Washington, D.C.?

July is the wettest or most rainy month in Washington, D.C., with an average rainfall of 150mm/6 inches.

What is the least rainy or driest month in Washington, D.C.?

January is the driest or least rainy month in Washington, D.C., with an average rainfall of 70mm/3 inches.

What is the warmest or hottest place in Washington, D.C.?

Washington is the hottest or warmest place in Washington, D.C., with an average maximum temperate of 15°C/59°F.

What is the coldest place in Washington, D.C.?

Washington is the coldest place in Washington, D.C., with an average maximum temperate of 15°C/59°F.

What is the most rainy or wettest place in Washington, D.C.?

Washington is the most rainy or wettest place in Washington, D.C., with an average annual rainfall of 1,247mm/49 inches.

What is the least rainy or driest place in Washington, D.C.?

Washington is the least rainy or driest place in Washington, D.C., with an average annual rainfall of 1,247mm/49 inches.

Average Monthly Temperatures
Average Maximum Temperature Average Minimum Temperature
Average Monthly Rainfall
PlaceMin TempMax TempAvg TempRainfall
Washington 11 20 15 1,247