May weather forecastPiedra, AZ
May
Weather in May
The last month of the spring, May, is a tropical month in Piedra, Arizona, with temperature in the range of an average low of 67.5°F (19.7°C) and an average high of 90.5°F (32.5°C).Temperature
May sees a marginal temperature increase, moving from a moderately hot 83.1°F (28.4°C) in April to a hot 90.5°F (32.5°C). In Piedra, the nighttime chill during May is a clear shift from the day's highs, with an average of 67.5°F (19.7°C).Humidity
In May, the average relative humidity is 20%.Rainfall
April through June are months with the least rain when the rain falls for 1.3 days and typically aggregates up to 0.08" (2mm) of rain.Daylight
In May, the average length of the day is 13h and 52min.On the first day of the month, sunrise is at 5:43 am and sunset at 7:14 pm. On the last day of May, sunrise is at 5:24 am and sunset at 7:35 pm MST.
Sunshine
In Piedra, the average sunshine in May is 12h.UV index
In May, the average daily maximum UV index is 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 7 during May translates into the following directions:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Piedra, AZ
- Average high temperature in May: 90.5°F
The warmest month (with the highest average high temperature) is July (102.4°F).
The month with the lowest average high temperature is December (63.1°F).
- Average low temperature in May: 67.5°F
The month with the highest average low temperature is August (85.3°F).
The coldest month (with the lowest average low temperature) is December (47.7°F).
Average pressure in May
Piedra, AZ
- Average pressure in May: 29.81"Hg
The month with the highest atmospheric pressure is January (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.76"Hg).
Average wind speed in May
Piedra, AZ
- Average wind speed in May: 8.3mph
The windiest months (with the highest average wind speed) are May and June (8.3mph).
The calmest months (with the lowest average wind speed) are January and December (5.3mph).
Average humidity in May
Piedra, AZ
- Average humidity in May: 20%
The month with the highest relative humidity is December (42%).
The month with the lowest relative humidity is June (17%).
Average rainfall in May
Piedra, AZ
- Average rainfall in May: 0.08"
The wettest month (with the highest rainfall) is July (1.5").
The driest months (with the least rainfall) are April, May and June (0.08").
Average rainfall days in May
Piedra, AZ
- Average rainfall days in May: 1.3 days
The month with the highest number of rainy days is July (12.9 days).
The month with the least rainy days is May (1.3 days).
Average daylight in May /
Average sunshine in May
Piedra, 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: 12h and 0min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in May
Piedra, AZ
- Average sunshine days in May: 29.2 days
The month with the most sunshine days is May (29.2 days).
The month with the least sunshine days is July (13.4 days).
Average UV index in May
Piedra, 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
Piedra, AZ
- Average cloud cover in May: 7
The month with the most cloud cover is December (Cloud cover 19).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in May
Piedra, 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).





