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
May's arrival signals a subtle increase in average high-temperatures, moving from April's agreeable 71.4°F (21.9°C) to a moderately hot 79.3°F (26.3°C). In the month of May, the temperature generally rests at an average low of 59.2°F (15.1°C).Humidity
In May, the average relative humidity in Royal is 76%.Rainfall
In May, the rain falls for 16.1 days. Throughout May, 3.31" (84mm) of precipitation is accumulated. In Royal, during the entire year, the rain falls for 177.4 days and collects up to 41.42" (1052mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in May is 13h and 57min.On the first day of the month, sunrise is at 5:55 am and sunset at 7:30 pm. On the last day of May, sunrise is at 5:35 am and sunset at 7:52 pm CDT.
Sunshine
In May, the average sunshine is 9.6h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: An average maximum UV index of 6 in May leads to these recommendations:
Fend off overexposure. Sun protection is vital. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature?
What is the average humidity in May?
How much does it rain in May?
When it does not snow?
What is the average length of the day in May?
When is the sunrise / sunset in May in Royal?
How many hours of sunshine does Royal have in May?
What is the month with the highest UV index?
What is the UV index reading in May?
Average temperature in May
Royal, AL
- Average high temperature in May: 79.3°F
The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (48.9°F).
- Average low temperature in May: 59.2°F
The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (34°F).
Average pressure in May
Royal, AL
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in May
Royal, AL
- Average wind speed in May: 5.9mph
The windiest months (with the highest average wind speed) are January, February and March (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in May
Royal, AL
- Average humidity in May: 76%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (73%).
Average rainfall in May
Royal, AL
- Average rainfall in May: 3.31"
The wettest month (with the highest rainfall) is December (4.21").
The driest month (with the least rainfall) is October (2.32").
Average rainfall days in May
Royal, AL
- Average rainfall days in May: 16.1 days
The month with the highest number of rainy days is July (20.9 days).
The month with the least rainy days is November (8.7 days).
Average snowfall in May
Royal, AL
- Average snowfall in May: 0"
The month with the highest snowfall is January (0.63").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Royal, AL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (1.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Royal, AL
- Average daylight in May: 13h and 5min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in May: 9h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in May
Royal, AL
- Average sunshine days in May: 12.9 days
The month with the most sunshine days is November (20 days).
The month with the least sunshine days is July (8.4 days).
Average UV index in May
Royal, AL
- Average UV index in May: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in May
Royal, AL
- Average cloud cover in May: 35
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is September (Cloud cover 31).
Average visibility in May
Royal, AL
- 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).
Royal, Alabama, USA
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