Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
As April transitions into May, a subtle temperature shift is observed, with average highs adjusting from a warm 75.6°F (24.2°C) to a still moderately hot 82.6°F (28.1°C). Saint David's average low-temperature of 55.8°F (13.2°C) in May reflects a significant disparity from the daytime highs.Humidity
The average relative humidity in May in Saint David is 22%.Rainfall
The months with the least rainfall are April and May Rain falls for 2.1 days and accumulates 0.12" (3mm) of rain.Snowfall
In Saint David, snow does not fall in March through November.Daylight
In Saint David, the average length of the day in May is 13h and 48min.On the first day of the month, sunrise is at 5:34 am and sunset at 7:01 pm. On the last day of May, sunrise is at 5:15 am and sunset at 7:21 pm MST.
Sunshine
In Saint David, Arizona, the average sunshine in May is 12h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The daily high UV index of 7 in May translates into this advice:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. 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. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Saint David in May?
What is the average humidity in May in Saint David?
What is the driest month in Saint David?
How much does it rain in Saint David in May?
When it does not snow in Saint David?
How many hours of daylight does Saint David have in May?
What time are sunrise and sunset in May in Saint David?
How long on average sun shines in May in Saint David?
When is the highest UV index in Saint David?
What is the UV index reading in May in Saint David?
Average temperature in May
Saint David, AZ
- Average high temperature in May: 82.6°F
The warmest month (with the highest average high temperature) is June (92.8°F).
The month with the lowest average high temperature is December (57.7°F).
- Average low temperature in May: 55.8°F
The month with the highest average low temperature is July (71.8°F).
The coldest months (with the lowest average low temperature) are January and December (38.5°F).
Average pressure in May
Saint David, AZ
- Average pressure in May: 29.87"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in May
Saint David, AZ
- Average wind speed in May: 8.7mph
The windiest month (with the highest average wind speed) is April (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in May
Saint David, 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 (21%).
Average rainfall in May
Saint David, AZ
- Average rainfall in May: 0.12"
The wettest month (with the highest rainfall) is August (2.48").
The driest months (with the least rainfall) are April and May (0.12").
Average rainfall days in May
Saint David, AZ
- Average rainfall days in May: 2.1 days
The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is May (2.1 days).
Average snowfall in May
Saint David, AZ
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Saint David, AZ
- Average snowfall days in May: 0 days
The months with the highest number of snowfall days are January and 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
Saint David, AZ
- Average daylight in May: 13h and 5min
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 6min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).
Average sunshine days in May
Saint David, AZ
- Average sunshine days in May: 28.4 days
The month with the most sunshine days is May (28.4 days).
The month with the least sunshine days is July (9.4 days).
Average UV index in May
Saint David, AZ
- Average UV index in May: 7
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 3).
Average cloud cover in May
Saint David, AZ
- Average cloud cover in May: 7
The months with the most cloud cover are July and December (Cloud cover 20).
The month with the least cloud cover is May (Cloud cover 7).
Average visibility in May
Saint David, 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).
Saint David, Arizona, USA
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