Fly from
Fly to
Route
Depart
Return
Price
BelfastWashington, D.C.
BFS - IAD
BFSIAD
Belfast Intl
Sun 1/5
6:00 am-3:40 pm
2 stops14h 40m
Washington, D.C. Dulles Intl
Sun 1/12
7:40 pm-8:10 pm
2 stops19h 30m
In terms of precipitation, rainfall in District of Columbia ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit District of Columbia when rainfall is around 2.6 in.
If weather is an important factor for your trip to District of Columbia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).