May weather forecastMarana, AZ
May
Weather in May
The anticipation of summer gets higher in May with the mercury spiking to an average high of 88°F (31.1°C). Characteristics of desert summer start appearing prominently from this month onwards with longer daylight hours and increased sunshine duration. Rainfall becomes exceedingly sparse in May, and the dry spell continues till June. Throughout the month, clear skies dominate over Marana while the gentle winter breeze leaves, making way for gustier winds. The low humidity, coupled with these factors, makes the weather remarkably dry with an intensified UV index of 7.Temperature
May marks a minor ascent in the average high-temperature, adjusting from April's warm 80.2°F (26.8°C) to a tropical 88°F (31.1°C). Marana in May observes a substantial swing from the daily highs, with average nighttime temperatures of 62.6°F (17°C).Humidity
In May, the average relative humidity is 20%.Rainfall
The months with the least rainfall are April and May Rain falls for 2.4 days and accumulates 0.2" (5mm) of rain.Daylight
In Marana, the average length of the day in May is 13h and 50min.On the first day of the month, sunrise is at 5:37 am and sunset at 7:06 pm. On the last day of May, sunrise is at 5:18 am and sunset at 7:26 pm MST.
Sunshine
In Marana, the average sunshine in May is 11.9h.UV index
In May, the average daily maximum UV index is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: In May, the average maximum UV index of 7 translates into the following recommendations:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Marana, AZ
- Average high temperature in May: 88°F
The warmest month (with the highest average high temperature) is June (99°F).
The month with the lowest average high temperature is December (61.9°F).
- Average low temperature in May: 62.6°F
The month with the highest average low temperature is August (79.7°F).
The coldest month (with the lowest average low temperature) is December (44.6°F).
Average pressure in May
Marana, AZ
- Average pressure in May: 29.85"Hg
The month with the highest atmospheric pressure is January (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.82"Hg).
Average wind speed in May
Marana, AZ
- Average wind speed in May: 7.9mph
The windiest months (with the highest average wind speed) are April and May (7.9mph).
The calmest months (with the lowest average wind speed) are January and December (5.5mph).
Average humidity in May
Marana, AZ
- Average humidity in May: 20%
The month with the highest relative humidity is December (45%).
The month with the lowest relative humidity is June (18%).
Average rainfall in May
Marana, AZ
- Average rainfall in May: 0.2"
The wettest month (with the highest rainfall) is August (1.77").
The driest months (with the least rainfall) are April and May (0.2").
Average rainfall days in May
Marana, AZ
- Average rainfall days in May: 2.4 days
The month with the highest number of rainy days is July (13.8 days).
The month with the least rainy days is May (2.4 days).
Average daylight in May /
Average sunshine in May
Marana, 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: 11h and 54min
The month with the most sunshine is August (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in May
Marana, AZ
- Average sunshine days in May: 28.2 days
The month with the most sunshine days is May (28.2 days).
The month with the least sunshine days is July (13 days).
Average UV index in May
Marana, AZ
- Average UV index in May: 7
The months with the highest UV index are June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in May
Marana, 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 7).
Average visibility in May
Marana, 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).
