
Overview
This 29-mile highway connects Baltimore, MD and Washington, D.C. The parkway has carried visitors to and from the capital city since 1954.
The Washington, D.C. area has a four-season Mid-Atlantic climate. Summertime is warm and humid, while winter can be cold and snowy. Spring: During these months of transition, the weather can alternate from warm, humid air coming from the south to cold, dry air coming from the northwest. Be prepared for changing conditions. Summer: The warmest months are June, July, and August, with average highs in the 80s (~31 ?) combined with high humidity. Temperatures often climb into the 90s (~34?).
Gallery
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Things to do

Start your stamp collection and celebrate every park you visit! Explore historic sites and scenic parks managed by National Capital Parks - East and collect a unique stamp at each one.
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Become a Junior Ranger at parks across National Capital Parks – East! Explore, complete a booklet, and earn badges and certificates along the way!
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Help visitors discover the best local businesses near Baltimore-Washington Parkway. List your business on Poyst and reach thousands of travelers.