Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
May's arrival coincides with a marginal rise in the average high-temperature, moving from April's moderately hot 83.1°F (28.4°C) to a hot 90.9°F (32.7°C). Phoenix anticipates a considerable drop in temperature at night in May, with an average low of 67.6°F (19.8°C).Humidity
In Phoenix, Arizona, the average relative humidity in May is 19%.Rainfall
The months with the least rainfall in Phoenix are May and June Rain falls for 1.3 days and accumulates 0.08" (2mm) of rain.Snowfall
January through August, October through December are months without snowfall in Phoenix, Arizona.Daylight
In Phoenix, the average length of the day in May is 13h and 55min.On the first day of the month, sunrise is at 5:39 am and sunset at 7:11 pm. On the last day of May, in Phoenix, sunrise is at 5:19 am and sunset at 7:32 pm MST.
Sunshine
The average sunshine in May in Phoenix, Arizona, is 11.9h.UV index
The months with the highest UV index in Phoenix are May through August, with an average maximum UV index of 8. A UV Index reading of 8 to 10 represents a very high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In May, a regular UV index of 8 translates into these guidelines:
Take special precautions, as unprotected eyes and skin can be burned and damaged quickly. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Frequently asked questions
How hot is it in Phoenix in May?
What is the average humidity in May in Phoenix?
What is the driest month in Phoenix?
How many days does it rain in May in Phoenix?
When it does not snow in Phoenix?
How many hours of daylight does Phoenix have in May?
What time are sunrise and sunset in May in Phoenix?
How long on average sun shines in May in Phoenix?
What are the months with the highest UV index in Phoenix?
How high is the UV index in May in Phoenix?
Average temperature in May
Phoenix, AZ
- Average high temperature in May: 90.9°F
The warmest month (with the highest average high temperature) is July (103.6°F).
The month with the lowest average high temperature is December (63°F).
- Average low temperature in May: 67.6°F
The month with the highest average low temperature is August (84.7°F).
The coldest month (with the lowest average low temperature) is January (47.5°F).
Average pressure in May
Phoenix, AZ
- Average pressure in May: 29.84"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.81"Hg).
Average wind speed in May
Phoenix, AZ
- Average wind speed in May: 6.3mph
The windiest month (with the highest average wind speed) is April (6.4mph).
The calmest month (with the lowest average wind speed) is December (4.3mph).
Average humidity in May
Phoenix, AZ
- Average humidity in May: 19%
The month with the highest relative humidity is December (43%).
The month with the lowest relative humidity is June (16%).
Average rainfall in May
Phoenix, AZ
- Average rainfall in May: 0.08"
The wettest month (with the highest rainfall) is July (0.75").
The driest months (with the least rainfall) are May and June (0.08").
Average rainfall days in May
Phoenix, AZ
- Average rainfall days in May: 1.3 days
The month with the highest number of rainy days is July (7.8 days).
The month with the least rainy days is June (0.8 days).
Average snowfall in May
Phoenix, AZ
- Average snowfall in May: 0"
The month with the highest snowfall is September (0.04").
The months with the least snowfall are January, February, March, April, May, June, July, August, October, November and December (0").
Average snowfall days in May
Phoenix, AZ
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).
Average daylight in May /
Average sunshine in May
Phoenix, AZ
- Average daylight in May: 13h and 5min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in May: 11h and 5min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in May
Phoenix, AZ
- Average sunshine days in May: 29.2 days
The month with the most sunshine days is May (29.2 days).
The month with the least sunshine days is July (21.1 days).
Average UV index in May
Phoenix, AZ
- Average UV index in May: 8
The months with the highest UV index are May, June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in May
Phoenix, AZ
- Average cloud cover in May: 8
The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in May
Phoenix, AZ
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Phoenix, Arizona, USA
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