May weather forecastSouth Tucson, AZ
May
Weather in May
The last month of the spring, May, is also a moderately hot month in South Tucson, Arizona, with an average temperature fluctuating between 60.4°F (15.8°C) and 85.5°F (29.7°C).Temperature
The onset of May brings a minor temperature shift, with the average high-temperature moving from a warm 78.3°F (25.7°C) in April to a still moderately hot 85.5°F (29.7°C). A noticeable downturn in temperature characterizes the May nights in South Tucson, averaging at a refreshing 60.4°F (15.8°C).Humidity
In May, the average relative humidity is 21%.Rainfall
May is the month with the least rainfall. Rain falls for 1.3 days and accumulates 0.08" (2mm) of precipitation.Snowfall
In South Tucson, snow does not fall in February through December.Daylight
The average length of the day in May is 13h and 49min.On the first day of the month, sunrise is at 5:36 am and sunset at 7:05 pm. On the last day of May, sunrise is at 5:18 am and sunset at 7:25 pm MST.
Sunshine
The average sunshine in May is 12h.UV index
The average daily maximum UV index in May is 7. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.Note: The daily maximum UV index of 7 in May interprets into the following advice:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
South Tucson, AZ
- Average high temperature in May: 85.5°F
The warmest month (with the highest average high temperature) is June (96.6°F).
The month with the lowest average high temperature is December (60.8°F).
- Average low temperature in May: 60.4°F
The month with the highest average low temperature is July (77°F).
The coldest months (with the lowest average low temperature) are January and December (43°F).
Average pressure in May
South Tucson, AZ
- Average pressure in May: 29.86"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in May
South Tucson, AZ
- Average wind speed in May: 8.1mph
The windiest months (with the highest average wind speed) are April and May (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in May
South Tucson, AZ
- Average humidity in May: 21%
The month with the highest relative humidity is December (45%).
The month with the lowest relative humidity is June (19%).
Average rainfall in May
South Tucson, AZ
- Average rainfall in May: 0.08"
The wettest month (with the highest rainfall) is July (1.42").
The driest month (with the least rainfall) is May (0.08").
Average rainfall days in May
South Tucson, AZ
- Average rainfall days in May: 1.3 days
The month with the highest number of rainy days is July (13.3 days).
The month with the least rainy days is May (1.3 days).
Average snowfall in May
South Tucson, AZ
- Average snowfall in May: 0"
The month with the highest snowfall is January (0.08").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in May
South Tucson, AZ
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in May /
Average sunshine in May
South Tucson, AZ
- Average daylight in May: 13h and 48min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in May: 12h and 0min
The month with the most sunshine is August (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in May
South Tucson, AZ
- Average sunshine days in May: 29.3 days
The month with the most sunshine days is May (29.3 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in May
South Tucson, AZ
- Average UV index in May: 7
The month with the highest UV index is June (UV index 8).
The months with the lowest UV index are November and December (UV index 3).
Average cloud cover in May
South Tucson, AZ
- Average cloud cover in May: 7
The month with the most cloud cover is December (Cloud cover 19).
The months with the least cloud cover are May and June (Cloud cover 7).
Average visibility in May
South Tucson, 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).
