May weather forecastCatalina, AZ
May
Weather in May
The last month of the spring, May, is also a moderately hot month in Catalina, Arizona, with an average temperature fluctuating between 84.7°F (29.3°C) and 58.5°F (14.7°C).Temperature
Catalina's transition into May is noticed by a slight rise in the average high-temperature, advancing from 76.6°F (24.8°C) in April to a still warm 84.7°F (29.3°C). Catalina demonstrates a significant disparity from daytime highs throughout the month of May, with an average nighttime temperature of 58.5°F (14.7°C).Humidity
In May, the average relative humidity is 22%.Rainfall
In Catalina, in May, it is raining for 2 days, with typically 0.31" (8mm) of accumulated precipitation. Throughout the year, in Catalina, there are 76.5 rainfall days, and 13.31" (338mm) of precipitation is accumulated.Snowfall
March through November are months without snowfall in Catalina.Daylight
In Catalina, the average length of the day in May is 13h and 50min.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, in Catalina, sunrise is at 5:17 am and sunset at 7:25 pm MST.
Sunshine
In May, the average sunshine is 11.8h.UV index
In May, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: During May, 7 as the daily maximum UV index converts into the following advice:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Catalina, AZ
- Average high temperature in May: 84.7°F
The warmest month (with the highest average high temperature) is June (95.5°F).
The month with the lowest average high temperature is December (59.2°F).
- Average low temperature in May: 58.5°F
The months with the highest average low temperature are July and August (75.4°F).
The coldest month (with the lowest average low temperature) is January (41.9°F).
Average pressure in May
Catalina, 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
Catalina, AZ
- Average wind speed in May: 8.1mph
The windiest month (with the highest average wind speed) is May (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in May
Catalina, AZ
- Average humidity in May: 22%
The month with the highest relative humidity is December (48%).
The month with the lowest relative humidity is June (20%).
Average rainfall in May
Catalina, AZ
- Average rainfall in May: 0.31"
The wettest month (with the highest rainfall) is July (2.68").
The driest month (with the least rainfall) is June (0.24").
Average rainfall days in May
Catalina, AZ
- Average rainfall days in May: 2 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is May (2 days).
Average snowfall in May
Catalina, AZ
- Average snowfall in May: 0"
The month with the highest snowfall is January (0.91").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Catalina, AZ
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (0.5 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in May /
Average sunshine in May
Catalina, AZ
- Average daylight in May: 13h and 48min
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 6min).
- Average sunshine in May: 11h and 48min
The months with the most sunshine are June and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in May
Catalina, AZ
- Average sunshine days in May: 28.6 days
The month with the most sunshine days is May (28.6 days).
The month with the least sunshine days is July (11.6 days).
Average UV index in May
Catalina, 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
Catalina, AZ
- Average cloud cover in May: 9
The month with the most cloud cover is December (Cloud cover 23).
The month with the least cloud cover is June (Cloud cover 8).
Average visibility in May
Catalina, 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).
