Average weather for the United States 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.
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. A few showers might pop up early in the month, but overall, it’ll stay mostly sunny and dry.
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.
Because temperatures drop in the evening, wearing layers is recommended.
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.
United States in May |
New York | ||
|---|---|---|---|
 Average temperature |
25°C | 22°C | |
 Max. temperature |
28°C | 28°C | |
| Min. temperature |
22°C | -5°C | |
 Total precipitation |
149 mm | 105 mm | |
| Rainy days |
12 days | 14 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?
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.
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
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.
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.
Daily Temperature in May in the United States
This chart shows the average daily high and low temperatures in May for the United States, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for 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 millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed 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 it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for May, you can expect about 12 days of precipitation 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 few 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 millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
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.
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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