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July Weather in Washington DC

Updated: May 8, 2023

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 into the low to mid-60s F (17-18C).

How Hot is it in July in DC

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).


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.

In 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.


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.

Seasonal Outlook - July to September 2022 Washington, DC

There is an 85% chance for normal to above normal temperatures and a 77% chance for normal to above normal rainfall


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.


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.

  1. Celebrate the 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 a Play
  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!

About The Author

Fred Pickhardt

Fred is a marine meteorologist and sailed briefly with American Export Lines in the Far East trade. He has extensive experience in weather analysis, weather forecasting, and forensic weather event reconstructions. Fred founded Ocean Weather Services and currently provides forensic marine weather reports to the maritime industry.
Updated: May 8th, 2023
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