May weather forecastHayden, AZ
May
Weather in May
May, the last month of the spring in Hayden, is also a moderately hot month, with an average temperature ranging between min 59.4°F (15.2°C) and max 83.8°F (28.8°C).Temperature
The shift from April to May is marked by a slight increase in the average high-temperature, moving from 76.1°F (24.5°C) to a still warm 83.8°F (28.8°C). A noteworthy thermal contrast characterizes Hayden's May nights, with temperatures averaging at a moderate 59.4°F (15.2°C).Humidity
In Hayden, the average relative humidity in May is 23%.Rainfall
In May, the rain falls for 3.2 days. Throughout May, 0.24" (6mm) of precipitation is accumulated. In Hayden, during the entire year, the rain falls for 83.1 days and collects up to 11.81" (300mm) of precipitation.Snowfall
In Hayden, snow does not fall in February through December.Daylight
In May, the average length of the day is 13h and 52min.On the first day of May, sunrise is at 5:34 am and sunset at 7:05 pm. On the last day of the month, sunrise is at 5:15 am and sunset at 7:26 pm MST.
Sunshine
In Hayden, Arizona, the average sunshine in May is 11.9h.UV index
In May, the average daily maximum UV index is 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 7 in May translates into these instructions:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Hayden, AZ
- Average high temperature in May: 83.8°F
The warmest month (with the highest average high temperature) is June (95°F).
The month with the lowest average high temperature is December (58.1°F).
- Average low temperature in May: 59.4°F
The month with the highest average low temperature is July (76.6°F).
The coldest month (with the lowest average low temperature) is January (41°F).
Average pressure in May
Hayden, AZ
- Average pressure in May: 29.87"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in May
Hayden, AZ
- Average wind speed in May: 7.8mph
The windiest month (with the highest average wind speed) is May (7.8mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in May
Hayden, AZ
- Average humidity in May: 23%
The month with the highest relative humidity is December (49%).
The month with the lowest relative humidity is June (19%).
Average rainfall in May
Hayden, AZ
- Average rainfall in May: 0.24"
The wettest month (with the highest rainfall) is July (1.81").
The driest month (with the least rainfall) is June (0.2").
Average rainfall days in May
Hayden, AZ
- Average rainfall days in May: 3.2 days
The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is May (3.2 days).
Average snowfall days in May
Hayden, AZ
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (0.1 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
Hayden, AZ
- Average daylight in May: 13h and 54min
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 0min).
- 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 36min).
Average sunshine days in May
Hayden, AZ
- Average sunshine days in May: 27.2 days
The month with the most sunshine days is May (27.2 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in May
Hayden, 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
Hayden, AZ
- Average cloud cover in May: 9
The month with the most cloud cover is December (Cloud cover 24).
The month with the least cloud cover is June (Cloud cover 8).
Average visibility in May
Hayden, 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).





