Washington
District of Columbia, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and Climate
Washington, DC

Washington, D.C., the national capital of the United States has a humid subtropical climate (Köppen climate classification Cfa) with hot and humid summers and cold winters. The city lies on the Potomac River, bordered by the beautiful Blue Ridge Mountains with proximity to the Atlantic Ocean. Location near the east coast with closeness to the ocean significantly influences the climate.

Summers are hot with plenty of sunshine, and the peak temperatures reach an average high of 88.4°F (31.3°C) in July. Spring and autumn are relatively less humid and pleasant, with evenly distributed precipitation throughout the year. January is the coldest with average lows reaching to an astounding 28.6°F (-1.9°C). Snowfall is common in the winter and reaches about 15" (381mm). Annual rainfall is abundant to the tune of 40" (1016mm) and is occasionally accompanied by thunderstorms and destructive tornadoes.

The best time to visit Washington, D.C. is the spring and the fall seasons, around March to May and September to November. Spring brings warm weather in the 60°F (15.6°C) and 70°F (21.1°C), and the winter chill is absent. The National Cherry Blossom festival in spring is a bucket list event, and the cherry trees blossoming all over downtown is a magnificent sight. Autumn is devoid of the heat and stickiness of the summer with spectacular fall foliage soothing the eyes. Leaves changing into different color shades against the background of numerous marble monuments are a sight straight from heaven.

Winter is the worst time to visit Washington, D.C. The cold is at its peak in January with average low temperatures of 28°F (-2.2°C). Snowfall is common in the winter, and warm winter coats and coverings are mandatory to step out. The weather is cold, and the days are short with daily sunshine lasting for an average of 4.3 hours. Winter offers indoor activities to visitors, as Washington, D.C. is a historic city with many museums and monuments of interest.

Washington, D.C.'s location on the east coast is prone to snowstorms. These storms make the city vulnerable during winter as a few of the more violent ones may last a few days and slow down the city. On an average, one year out of four is severely affected by blizzards.
Hurricanes are also a threat to Washington, D.C., not due to the powerful winds that lose strength when they reach inland, but due to the resultant flooding of the Potomac River, that causes widespread property damage.

The winter brings the coldest temperatures of the year in January with the mercury in the range of 28°F (-2.2°C) to 44°F (6.7°C), accompanied by a moderate amount of snow. Weather in January »

February is a cold winter month and the driest of the year with 2.7" (68.6mm) of rain. Rain gives way to gather about 5.7" (144.8mm) of snow in the month. Blizzards are a distinct possibility. Weather in February »

Spring starts in March and is mild with daily average high temperature in the region of 55°F (12.8°C). Blooming flowers along the National Mall are a joy to both tourists and locals. Weather in March »

April spreads greenery all over the landscape, and the National Cherry Blossom Festival is a spectacular event enjoyed by visitors from all over the globe. Weather in April »

May is the wettest month of the year at 4" (101.6mm), but also enjoys many sunny days with average temperatures in the range of 55°F (12.8°C) to 75°F (23.9°C). Weather in May »

Summer starts in June in Washington, D.C., and it is hot and humid. It is an excellent time for paddle boating or kayaking in the Potomac River and admiring the various memorials while moving through the water. Weather in June »

July is the hottest month of the year with the peak temperatures around 88°F (31.1°C). Brilliant sunshine lasts about 9.4 hours daily; avoid the scorching mid-day sun or take adequate protection with the sun's ultraviolet index shooting to a dangerous 9. Weather in July »

August is a hot summer month with average daily temperatures ranging in between 70°F (21.1°C) to 86°F (30°C). The skies are mostly sunny and bright but occasional afternoon thunderstorms bring cloudy and rainy weather. Weather in August »

Fall weather brings the average daily temperatures in the range of a comfortable 63°F (17.2°C) to 79°F (26.1°C). September is one of the best intervals to visit Washington, D.C. with fewer crowds compared to spring and summer. Weather in September »

Fall foliage contrasting with Washington, D.C.'s marble monuments, is at its peak in the mildly cool October. Average low temperatures drop to the fifties, and the afternoons and evenings tend to be breezy. Weather in October »

November is the last month of the fall with the average daily highs still at a warm 58°F (14.4°C). Daily sunshine lasts for 5 hours and the days become short, but sunny days are not entirely scarce. Weather in November »

December is a cold winter month with average lows dropping to 32°F (0°C). The weather is unpredictable with sunny days interspersed between intense cold days. Weather in December »

The month with the highest number of snowfall days is January (3 days).
Months with the lowest number of snowfall days are May, June, July, August, September and October (0 days).

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