Herndon weather in May (Virginia, United States of America)

Curious about the climate in Herndon this May? Discover if this is the best time for your journey with our detailed monthly weather breakdown.

Temperatures

The typical weather for May in Herndon includes high temperatures and high rainfall. Throughout the day, temperatures typically settle at around 24°C. But by evening, they drop to around 12°C.

Precipitation

Herndon in May usually receives high rainfall, averaging around 130 mm for the month. This month experiences about 15 days of rain according to historical data.

Average sunshine

Expect a lot of sunshine this month, with about 259 hours of sunny weather. The abundant sunlight creates a lively and bright atmosphere.

If you're inclined towards comfortable temperatures and drier conditions, May is a prime time to visit Herndon. April, May, June, July, August, September and October typically offer the best circumstances. While January, February and December tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Herndon climate page with graphs.

 

Herndon, monthly averages in May

Min Temperature 12°C  

Max Temperature 24°C  

Chance of Rain 48%  

Precipitation 130 mm  

Rainy days 15 days  

Humidity 64% *  

Sunshine 259 hours *  

Percentage Sunshine 59% *  

* Data from: Washington DC, the United States of America (33 KM, 20 Miles).

Where to go in the United States of America in May

Find out more about the weather in the United States of America and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

For visitors traveling to Herndon, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

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

Swimming

9/10

Cycling

9/10

Walking

9/10

Camping

6/10

Outdoor sports

9/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Herndon.

Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.