Weather in Washington DC

Washington DC has a continental climate with four distinct seasons, highly changeable. The summer is hot and humid, interspersed with frequent rain showers;  winters are very cold with snowstorms. The warmest months are July and August when temperatures average 86°F and 91°F (30°C to 33°C). Over mid-December to mid-February, temperatures range between 20°F and 45°F (-6°C to 8°C). Probably the best weather is over March to mid May when temperatures are mild, humidity is low and the cherry trees blossom on the National Mall.