The weather in May in the United States
It's warm in May in the United States with an average temperature of 25°C. Temperatures this month range from a low of 22°C to a high of 28°C. At night, you can expect temperatures between 9°C and 18°C.
Looking for sun? May isn’t a good month to be in the United States. 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 the 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 2014, the United States reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was 8°C in 2020. The extreme nighttime temperatures ranged from a lowest recorded value of 1°C to a highest value of 25°C.
Rainfall amount
In May, there is an average of 149 mm of precipitation, spread over 17 days. The wind speed is around 4 Bft, mostly coming from the South.
Daily weather in May for the United States
Click on any day in May to get detailed info about the usual weather on that day in the United States. Check out the historical temperatures and precipitation over the past 10 years on this day.
May weather comparison
| United States | New York | |
|---|---|---|
| Average temperature | 25°C | 22°C |
| Max. temperature | 28°C | 28°C |
| Min. temperature | 9°C | -5°C |
| Total precipitation | 149 mm | 105 mm |
| Rainy days | 17 days | 14 days |
Start of May
The month of May starts in United States with warm temps, averaging around 25°C during the day and nights around 13°C.
Mid May
By mid-May, daytime temps stay steady at around 25°C, with nights around 14°C. There’s a high chance of precipitation during this time.
End of May
By the end of May, the average daytime temperature in United States is around 27°C, while nighttime temps are about 17°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 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
The hurricane season in Alabama runs from June to November.
The hurricane season in Florida runs from June to November.
The hurricane season in Louisiana runs from June to November.
The hurricane season in Mississippi runs from June to November.
The hurricane season in Texas runs from June to November.
Check out the climate of the United States for all months and discover the best travel time
The climate in the United States is based on weather data from . Other places, like New York City, Miami or Los Angeles, might have different weather. You can check out all destinations in the United States to get the full picture of the climate.
Temperature charts
These charts show the average temperatures in May in the 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 the United States
Temperature in May in the United States over the years
Precipitation charts
These charts show the average amount of precipitation in May in the 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 the United States
Total precipitation in May in the United States over the years
Daily UV index in May in the United States
This chart shows the average daily UV index in May in the United States, 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 the United States
The weather in May in the United States is rated 4 out of 5 stars by 1 visitor. Have you been to the United States? Share your weather experience to help other visitors.
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The south was hot and humid, the north pleasantly mild and the west sunny and dry. All in all, a surprisingly complex range of climates!— This text is automatically translated to English
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Average weather in the United States by month
Click on a month below to see detailed weather info for the United States. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.