Average weather for Grand Canyon in May
It's pleasantly warm in May in Grand Canyon with an average temperature of 21°C. Temperatures this month range from a low of 18°C to a high of 26°C. At night, you can expect temperatures between -1°C and 4°C.
Start of May
The month of May starts in Grand Canyon with mild temps, averaging around 21°C during the day and nights around 1°C. There’s little chance of precipitation. The weather’s mostly sunny and dry.
Mid May
By mid-May, daytime temps stay steady at around 21°C, with nights around 2°C. Not much precipitation expected during this period. It’s mostly dry and sunny.
End of May
By the end of May, the average daytime temperature in Grand Canyon is around 23°C, while nighttime temps are about 2°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.
In May, there is an average of 20 mm of precipitation, spread over 4 days. Of the total precipitation, about 1,0 cm falls as snow in May. The wind speed is around 5 Bft, mostly coming from the Southwest.
Grand Canyon in May |
New York | ||
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21°C | 22°C | |
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26°C | 28°C | |
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18°C | -5°C | |
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20 mm | 105 mm | |
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4 days | 14 days | |
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1,0 cm | 0 cm | |
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1 day | 0 days |
UV index
The UV index is a maximum of 10 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 Grand Canyon?
Looking for great weather? May is a good time to be in Grand Canyon. The temperatures are nice, and there’s little chance of rain this month.
Temperature records
With 32°C in 2015, Grand Canyon reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was 5°C in 2019. The extreme nighttime temperatures ranged from a lowest recorded value of -8°C to a highest value of 13°C.
Check out the climate of Grand Canyon for all months and discover the best travel time
Daily Temperature in May in Grand Canyon
This chart shows the average daily high and low temperatures in May for Grand Canyon, 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.
Daily Precipitation in May in Grand Canyon
The chart below shows the average daily precipitation in May for Grand Canyon, 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 4 days of precipitation in Grand Canyon.
Daily Snowfall in May in Grand Canyon
This chart shows the average daily snowfall in May in Grand Canyon, measured in centimeters. The bottom of the chart shows the days of the month. The data is based on historical measurements and gives an idea of the average snowfall in May.
Daily UV index in May in Grand Canyon
This chart shows the average daily UV index in May in Grand Canyon, 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 Grand Canyon over the years
This chart shows the average temperature in May in Grand Canyon, measured in degrees Celsius, over the past few years.
Total precipitation in May in Grand Canyon over the years
This chart shows the average precipitation in May in Grand Canyon, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Snowfall in May in Grand Canyon per year
This chart shows the average snowfall in May in Grand Canyon, measured in centimeters, over the past few years.
Daily weather in May for Grand Canyon
Click on any day in May to get detailed info about the usual weather on that day in Grand Canyon. Check out the historical temperatures and precipitation over the past 10 years on this day.































Weather experiences in May in Grand Canyon
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Average weather in Grand Canyon by month
Click on a month below to see detailed weather info for Grand Canyon. 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 Grand Canyon for all months at once