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United StatesThe weather in May in Washington D.C.
It's warm in May in Washington D.C. with an average temperature of 26°C. Temperatures this month range from a low of 20°C to a high of 29°C. At night, you can expect temperatures between 10°C and 19°C.
Looking for sun? May isn’t a good month to be in Washington D.C.. The temperature is nice, but there’s too much chance of rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in May for Washington D.C., United States. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 35°C in 2022, Washington D.C. reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was 10°C in 2020. The extreme nighttime temperatures ranged from a lowest recorded value of 1°C to a highest value of 24°C.
Rainfall amount
In May, there is an average of 117 mm of precipitation, spread over 14 days. The wind speed is around 4 Bft, mostly coming from the South.
Daily weather in May for Washington D.C.
Click on any day in May to get detailed info about the usual weather on that day in Washington D.C.. Check out the historical temperatures and precipitation over the past 10 years on this day.
May weather comparison
| Washington D.C. | New York | |
|---|---|---|
| Average temperature | 26°C | 22°C |
| Max. temperature | 29°C | 28°C |
| Min. temperature | 10°C | -5°C |
| Total precipitation | 117 mm | 105 mm |
| Rainy days | 14 days | 14 days |
Start of May
The month of May starts in Washington D.C. with warm temps, averaging around 24°C during the day and nights around 13°C.
Mid May
By mid-May, daytime temps rise to around 25°C, with nights around 15°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
End of May
By the end of May, the average daytime temperature in Washington D.C. is around 28°C, while nighttime temps are about 18°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
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UV index
The UV index is a maximum of 6 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Check out the climate of Washington D.C. for all months and discover the best travel time
Curious about the weather in other parts of United States? Check out the climate and weather for spots like New York City, Miami, Los Angeles, or explore other destinations in United States.
Temperature charts
These charts show the average temperatures in May in Washington D.C., United States. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in May in Washington D.C.
Temperature in May in Washington D.C. over the years
Precipitation charts
These charts show the average amount of precipitation in May in Washington D.C., United States. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in May in Washington D.C.
Total precipitation in May in Washington D.C. over the years
Daily UV index in May in Washington D.C.
This chart shows the average daily UV index in May in Washington D.C., with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in May in Washington D.C.
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Average weather in Washington D.C. by month
Click on a month below to see detailed weather info for Washington D.C.. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.