Average Weather in May in Sun City Arizona, United States
Daily high temperatures increase by 9°F, from 89°F to 98°F, rarely falling below 79°F or exceeding 106°F.
Daily low temperatures increase by 8°F, from 62°F to 71°F, rarely falling below 55°F or exceeding 78°F.
For reference, on July 5, the hottest day of the year, temperatures in Sun City typically range from 81°F to 106°F, while on December 27, the coldest day of the year, they range from 43°F to 64°F.
Average High and Low Temperature in May
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on May. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature in May
The month of May in Sun City experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 21% throughout the month.
The clearest day of the month is May 31, with clear, mostly clear, or partly cloudy conditions 81% of the time.
For reference, on February 19, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 38%, while on September 19, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 86%.
Cloud Cover Categories in May
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Sun City, the chance of a wet day over the course of May is essentially constant, remaining around 2% throughout.
For reference, the year's highest daily chance of a wet day is 19% on August 22, and its lowest chance is 0% on June 13.
Probability of Precipitation in May
The average sliding 31-day rainfall during May in Sun City is essentially constant, remaining about 0.1 inches throughout, and rarely exceeding 0.5 inches or falling below -0.0 inches.
Average Monthly Rainfall in May
Over the course of May in Sun City, the length of the day is increasing. From the start to the end of the month, the length of the day increases by 42 minutes, implying an average daily increase of 1 minute, 23 seconds, and weekly increase of 9 minutes, 41 seconds.
The shortest day of the month is May 1, with 13 hours, 32 minutes of daylight and the longest day is May 31, with 14 hours, 14 minutes of daylight.
Hours of Daylight and Twilight in May
The latest sunrise of the month in Sun City is 5:40 AM on May 1 and the earliest sunrise is 20 minutes earlier at 5:20 AM on May 31.
The earliest sunset is 7:12 PM on May 1 and the latest sunset is 21 minutes later at 7:33 PM on May 31.
Daylight saving time is not observed in Sun City during 2021.
For reference, on June 21, the longest day of the year, the Sun rises at 5:19 AM and sets 14 hours, 23 minutes later, at 7:42 PM, while on December 21, the shortest day of the year, it rises at 7:29 AM and sets 9 hours, 55 minutes later, at 5:25 PM.
Sunrise & Sunset with Twilight in May
The figure below presents a compact representation of key lunar data for May 2021. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.
Moon Rise, Set & Phases in May
The chance that a given day will be muggy in Sun City is essentially constant during May, remaining around 0% throughout.
For reference, on August 14, the muggiest day of the year, there are muggy conditions 24% of the time, while on December 4, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in May
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Sun City is essentially constant during May, remaining within 0.1 miles per hour of 7.6 miles per hour throughout.
For reference, on April 27, the windiest day of the year, the daily average wind speed is 7.8 miles per hour, while on August 16, the calmest day of the year, the daily average wind speed is 5.9 miles per hour.
Average Wind Speed in May
The hourly average wind direction in Sun City throughout May is predominantly from the west, with a peak proportion of 49% on May 30.
Wind Direction in May
Temperatures in Sun City are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year.
Time Spent in Various Temperature Bands and the Growing Season in May
The average accumulated growing degree days in Sun City are rapidly increasing during May, increasing by 838°F, from 1,472°F to 2,309°F, over the course of the month.
Growing Degree Days in May
The average daily incident shortwave solar energy in Sun City is gradually increasing during May, rising by 0.6 kWh, from 7.8 kWh to 8.4 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in May
For the purposes of this report, the geographical coordinates of Sun City are 33.598 deg latitude, -112.272 deg longitude, and 1,142 ft elevation.
The topography within 2 miles of Sun City is essentially flat, with a maximum elevation change of 85 feet and an average elevation above sea level of 1,142 feet. Within 10 miles is essentially flat (1,161 feet). Within 50 miles contains very significant variations in elevation (6,985 feet).
The area within 2 miles of Sun City is covered by artificial surfaces (67%) and shrubs (30%), within 10 miles by shrubs (53%) and artificial surfaces (41%), and within 50 miles by shrubs (86%).
This report illustrates the typical weather in Sun City, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
There are 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Sun City.
For each station, the records are corrected for the elevation difference between that station and Sun City according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at Sun City is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Sun City and a given station.
The stations contributing to this reconstruction are: Luke Air Force Base (66%, 10 kilometers, southwest); Phoenix-Deer Valley Airport (21%, 20 kilometers, northeast); and Phoenix Sky Harbor International Airport (13%, 31 kilometers, southeast).
Time zones for airports and weather stations are provided by AskGeo.com .