Weathermondo.com
United StatesThe weather in May in Flagstaff
It's pleasantly warm in May in Flagstaff with an average temperature of 20°C. Temperatures this month range from a low of 14°C to a high of 25°C. At night, you can expect temperatures between 0°C and 8°C.
Looking for great weather? May is a good time to be in Flagstaff. The temperatures are nice, and there’s not too much 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 Flagstaff, Arizona. 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 29°C in 2020, Flagstaff reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was 4°C in 2015. The extreme nighttime temperatures ranged from a lowest recorded value of -5°C to a highest value of 13°C.
Precipitation and snowfall
In May, there is an average of 29 mm of precipitation, spread over 6 days. Of the total precipitation, about 1,2 cm falls as snow in May. The wind speed is around 5 Bft, mostly coming from the Southwest.
Daily weather in May for Flagstaff
Click on any day in May to get detailed info about the usual weather on that day in Flagstaff. Check out the historical temperatures and precipitation over the past 10 years on this day.
May weather comparison
| Flagstaff | New York | |
|---|---|---|
| Average temperature | 20°C | 22°C |
| Max. temperature | 25°C | 28°C |
| Min. temperature | 0°C | -5°C |
| Total precipitation | 29 mm | 105 mm |
| Rainy days | 6 days | 14 days |
| Total snowfall | 1,2 cm | 0 cm |
| Snowy days | 1 day | 0 days |
Start of May
The month of May starts in Flagstaff with mild temps, averaging around 19°C during the day and nights around 3°C.
Mid May
By mid-May, daytime temps rise to around 20°C, with nights around 3°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 Flagstaff is around 23°C, while nighttime temps are about 4°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.
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UV index
The UV index is a maximum of 4 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.
Check out the climate of Flagstaff for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in May in Flagstaff, Arizona. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in May in Flagstaff
Temperature in May in Flagstaff over the years
Precipitation charts
These charts show the average amount of precipitation in May in Flagstaff, Arizona. 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 Flagstaff
Total precipitation in May in Flagstaff over the years
Daily Snowfall in May in Flagstaff
Snowfall in May in Flagstaff per year
Daily UV index in May in Flagstaff
This chart shows the average daily UV index in May in Flagstaff, 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 Flagstaff
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Average weather in Flagstaff by month
Click on a month below to see detailed weather info for Flagstaff. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.