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 onset brings a rise in the average high-temperature, moving from a moderate 56.7°F (13.7°C) in April to an agreeable 68.7°F (20.4°C). Phoenix encounters a steady low-temperature average of 52.3°F (11.3°C) throughout the month of May.Humidity
The average relative humidity in May is 76%.Rainfall
May is the month with the most rainfall. Rain falls for 17.4 days and accumulates 4.17" (106mm) of precipitation.Snowfall
In Phoenix, snow does not fall in May through September.Daylight
The average length of the day in May is 14h and 33min.On the first day of the month, sunrise is at 5:46 am and sunset at 7:49 pm. On the last day of May, sunrise is at 5:18 am and sunset at 8:17 pm CDT.
Sunshine
In May, the average sunshine is 8.6h.UV index
In Phoenix, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index, 5 during May, leads to the following recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. To cut down UV radiation exposure by about half, sport a wide-brim hat. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature?
What is the average humidity in May?
What is the rainiest month?
How many days does it rain in May?
When it does not snow in Phoenix?
Does it snow in May?
How many hours of daylight does Phoenix have in May?
When are sunrise and sunset in May?
How long on average sun shines in May?
What is the UV index intensity in May?
Average temperature in May
Phoenix, IL
- Average high temperature in May: 68.7°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in May: 52.3°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in May
Phoenix, IL
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Phoenix, IL
- Average wind speed in May: 8.3mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in May
Phoenix, IL
- Average humidity in May: 76%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (73%).
Average rainfall in May
Phoenix, IL
- Average rainfall in May: 4.17"
The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is December (1.54").
Average rainfall days in May
Phoenix, IL
- Average rainfall days in May: 17.4 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is February (6.1 days).
Average snowfall in May
Phoenix, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (4.53").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Phoenix, IL
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Phoenix, IL
- Average daylight in May: 14h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in May: 8h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in May
Phoenix, IL
- Average sunshine days in May: 11.8 days
The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is April (10.2 days).
Average UV index in May
Phoenix, IL
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Phoenix, IL
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in May
Phoenix, IL
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Phoenix, Illinois, USA
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