Temperatures in May
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.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for United States in May. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of May
The month of May starts in United States with warm temperatures, averaging around 25°C during the day and nights close to 13°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry.
Mid-May
By mid-May, the average daytime temperature stays the same at 25°C, with nights close to 14°C. The chance of precipitation is high during this period.
End of May
By the end of May, the average daytime temperature in United States will be around 27°C, with nights close to 17°C. There’s regular precipitation, but with a bit of luck, you’ll also get some dry and sunny days.
As it gets cooler in the evening, it’s best to wear layers.
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Precipitation in May
In May, there is an average of 149 mm of precipitation, spread over 12 days. The wind speed is around 4 Bft, mostly coming from the South.
The average precipitation chance is 38% per day this month. The weather’s variable. Some days have higher and others lower precipitation chances, which lowers the average.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in May for United States. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
United States in May |
UK | ||
|---|---|---|---|
 Average Temperature |
25°C | 18°C | |
 High Temp |
28°C | 21°C | |
| Low Temp |
22°C | 15°C | |
 Total Precipitation |
149 mm | 46 mm | |
| Rainy Days |
12 days | 8 days | |
April
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.
Is May a good time to visit the United States?
After some sun? Then May isn’t the best time to be in the United States. The temperature is pleasant, but there’s too much chance of rain this month.
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.
Temperature records for the United States in May
With 35°C, the United States hit the highest temperature in the last 10 years in May 2014. The lowest daytime temperature in this month was 8°C in 2020. The extreme night temperatures ranged from a low of 1°C to a high of 25°C.
Check out the climate of the United States for all months and discover the best travel time
The climate of the United States is based on weather data from . Other spots, like New York City, Miami or Los Angeles, might have different weather. You can check out all destinations in the United States for a full picture of the climate.
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Daily Temperature in May in the United States
This chart shows the average daily temperatures, both day and night, for each day in May in the United States, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Weather experiences in May in the United States
Good
The south was hot and humid, the north pleasantly mild and t... more
Daily Precipitation in May in the United States
The chart below shows the average daily precipitation in May for the United States, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for May, you can expect around 12 days of rain in the United States.
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.
Temperature in May in the United States Over the Years
This chart shows the average temperature in May in the United States, measured in degrees Celsius, over the past years.
Total Precipitation in May in the United States Over the Years
This chart shows the average precipitation in May in the United States, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in May for the United States
Click on a specific day in May for detailed info on the typical weather on that day in the United States. Check out the historical temperatures and precipitation over the past 10 years on this day.
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.
Or check out the climate of the United States for all months at once
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