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July Weather in Washington DC

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This post is about the weather in July in Washington, DC, including average temperatures and rainfall as well as tips on what to wear and things to do. 


Early morning low temperatures will be mostly in the upper 60s F to lower 70s F (20-22 C) but can occasionally dip to into the low to mid-60s F (17-18C).

Afternoons tend to get very warm, mostly in the upper 80s F (30-32C) with a few days reaching into the mid to upper 90s F (35-36C).  


How Hot is it in July in DC



On average during July, DC will have about 12-14 days reaching or exceeding 90F (about 32C) with temperatures reaching or exceeding 100F (37.8C) about once every two years.  

During the past, DC has seen temperature extremes from as low as 54F (12.2 C) to as high as 104F (40 C).

This means it's a great time to take one of our pay-what-you-wish night tours, like our Lincoln Assassination Tour.



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Skies tend to be sunny or at least partly sunny on about 18-20 days during July with some rainfall usually occurring on about 9-10 days.


How much does it rain in DC in July

About 3 days will record significant rainfalls of 1/2 inch (13 mm) or more and there will be a risk for thunderstorms on about 5-7 days this month.

During July, winds tend to be light to moderate but can occasionally gust to 20 mph (32 kph) or more during thunderstorms.


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Be sure to read out post on What to Wear and Pack in DC for advice all year round on DC weather and how to prepare for it.

It is very warm in DC during July so dress light for summer, bring an umbrella for the occasional showers and don't forget a couple of pairs of good walking shoes.


What to Wear in DC in July  

Keep in mind that on hotter days, indoor attractions often have their air conditioning on so a sweater might be needed for museums even if it is warm and sunny outside.


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Below are 10 top things to do in DC in July.

Be sure to read our full post on what to do in DC in July which includes free, family-friendly, as well as nighttime activities and attractions.

Likewise, our definitive post on the best things to do in DC any time of year can be valuable.

And if you are planning on visiting many of DC’s top attractions, then you should consider a tourist attraction discount pass as you could save up to 50% of retail ticket prices to tours, attractions, and restaurants.



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  1. Celebrate 4th of July
  2. Experience a Military Pagent
  3. Attend a Music Concert
  4. Watch a Baseball Game
  5. Take a Walking Tour 
  6. Visit the National Zoo
  7. Visit Arlington National Cemetery
  8. See the Musical Alladin
  9. Enjoy a night out on the Wharf
  10. Experience the Lincoln Assassination Tour

Be sure to check out all the top things to do in July in our main post.

If you're visiting around the turn of the month, look at our weather in June and August posts!


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Fred Pickhardt
Ocean Weather Services

About The Author

Canden Arciniega

Canden is a historian and tour guide in Washington DC with 4 published books about the city. She has written for HuffPost Travel and has been featured in the Washington Post, WTOP, and numerous other DC papers. She's also been interviewed by the BBC, NPR, Travel Channel and Discovery Family Channel. Canden is the producer of our podcast, Tour Guide Tell All With a M.A. in History from University College London and a B.A. in History from Elon University, she is an authority on D.C. history, and has led tours in the city for over 10 years. She currently resides in DC, but has also lived in London and South Korea, and has travelled to 28 countries. Her two children (both under the age of 4) have their passports and own frequent flier accounts.
Updated: September 24th, 2021
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