Rockville Weather in July

July in Rockville brings very high temperatures, with daytime highs of 31°C (88°F) and nights around 20°C (68°F). Quite a bit of rainfall is expected, around 88 mm (3.5 in), so pack an umbrella.

Rainfall in Rockville in July

Climate statistics over the past 30 years suggest around 11 days of rain, with 88 mm (3.5 in) average for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Rockville in July

July in Rockville sees highs of 31°C (88°F) and lows of 20°C (68°F) overnight. If you're spending a lot of time outdoors, it helps to plan around the warmer part of the day. At 20°C (68°F) overnight, nights are warm enough to sit outside comfortably in light clothing. The average temperatures are warm, but some days will be hotter. Make sure to dress in light, breathable clothing and drink plenty of water.

Sunshine in Rockville in July

There are approximately 279 hours of sunshine this month, resulting in mostly clear days.

If your ideal day consists of dry skies and pleasant temperatures, August typically offers the best circumstances for Rockville.

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For a detailed overview over the year and the best time to visit the United States of America, check out our Rockville's climate page.

Rockville Temperature in July

Min Temperature 20°C (68°F)  

Max Temperature 31°C (88°F)  

Chance of Rain 37%  

Precipitation 88 mm (3.5 in)  

Rainy days 11 days  

Humidity 67% *  

Sunshine 279 hours *  

Percentage Sunshine 62% *  

* Data from: Washington DC, the United States of America (27 KM, 17 Miles).

What to Wear in Rockville in July

Warm weather calls for comfortable, breathable clothing in July. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Rockville in July

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

9/10

Cycling

7/10

Walking

7/10

Camping

8/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Rockville's climate page.

More climate data for Rockville

Temperature Rainfall Sunshine Humidity

See the full Rockville climate overview or explore weather in the United States of America.