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 signals a shift in the average high-temperature, moving from April's refreshing 64.9°F (18.3°C) to a warm 73.9°F (23.3°C). During the May nights, an average temperature of 53.1°F (11.7°C) is observed in Royal City.Humidity
In May, the average relative humidity in Royal City, Virginia, is 79%.Rainfall
In Royal City, during May, the rain falls for 18.6 days and regularly aggregates up to 2.99" (76mm) of precipitation. Throughout the year, there are 169.1 rainfall days, and 32.09" (815mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows in Royal City. During 0.2 snowfall days, in May, Royal City aggregates 0.24" (6mm) of snow. In Royal City, during the entire year, snow falls for 36.4 days and aggregates up to 22.36" (568mm) of snow.Daylight
In May, the average length of the day is 14h and 11min.On the first day of the month, sunrise is at 6:32 am and sunset at 8:18 pm. On the last day of May, sunrise is at 6:09 am and sunset at 8:42 pm EDT.
Sunshine
The average sunshine in May in Royal City is 9.1h.UV index
The months with the highest UV index in Royal City are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.Note: In May, a regular UV index of 6 translates into these guidelines:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Frequently asked questions
What is the usual temperature for Royal City in May?
What is the average humidity in May in Royal City?
How many days does it rain in May in Royal City?
What is the last month it snows in Royal City?
How many hours of daylight does Royal City have in May?
When are sunrise and sunset in May in Royal City?
How many hours of sunshine does Royal City have in May?
When is the highest UV index in Royal City?
How high is the UV index in May in Royal City?
Average temperature in May
Royal City, VA
- Average high temperature in May: 73.9°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (39.9°F).
- Average low temperature in May: 53.1°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in May
Royal City, VA
- Average pressure in May: 30.02"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in May
Royal City, VA
- Average wind speed in May: 5.5mph
The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in May
Royal City, VA
- Average humidity in May: 79%
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April and November (76%).
Average rainfall in May
Royal City, VA
- Average rainfall in May: 2.99"
The wettest month (with the highest rainfall) is February (3.7").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days in May
Royal City, VA
- Average rainfall days in May: 18.6 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in May
Royal City, VA
- Average snowfall in May: 0.24"
The month with the highest snowfall is February (5.59").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Royal City, VA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is February (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Royal City, VA
- Average daylight in May: 14h and 1min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in May: 9h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in May
Royal City, VA
- Average sunshine days in May: 10.7 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (10.7 days).
Average UV index in May
Royal City, VA
- 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, February and December (UV index 2).
Average cloud cover in May
Royal City, VA
- Average cloud cover in May: 42
The months with the most cloud cover are January and February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in May
Royal City, VA
- Average visibility in May: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Royal City, Virginia, USA
Weather forecast for your location
2. Allow the app to use your location
