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
Rio's transition into May sees a rise in the average high-temperature, advancing from a comfortable 66°F (18.9°C) in April to a moderately hot 75.4°F (24.1°C). Rio reports an average low-temperature of 54.1°F (12.3°C) during the nights of May.Humidity
The months with the highest humidity are May, September, October and December, with an average relative humidity of 76%.Rainfall
The months with the most rainfall are April and May, with an average 2.91" (74mm) of precipitation.Snowfall
In Rio, snow does not fall in May through October.Daylight
In Rio, the average length of the day in May is 14h and 15min.On the first day of May, sunrise is at 6:16 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 8:30 pm EDT.
Sunshine
The average sunshine in May in Rio is 9.2h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the average person.Note: A maximum UV index of 6 in May translates into the following recommendations:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Frequently asked questions
What is the usual temperature for Rio in May?
What are the most humid months in Rio?
What is the average humidity in May in Rio?
What is the rainiest month in Rio?
How much does it rain in Rio in May?
When it does not snow in Rio?
Does it snow in Rio in May?
How many hours of daylight does Rio have in May?
What time are sunrise and sunset in May in Rio?
How long on average sun shines in May in Rio?
When is the highest UV index in Rio?
What is the UV index intensity in May in Rio?
Average temperature in May
Rio, VA
- Average high temperature in May: 75.4°F
The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (41.5°F).
- Average low temperature in May: 54.1°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in May
Rio, VA
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in May
Rio, VA
- Average wind speed in May: 5.3mph
The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in May
Rio, VA
- Average humidity in May: 76%
The months with the highest relative humidity are May, September, October and December (76%).
The month with the lowest relative humidity is July (71%).
Average rainfall in May
Rio, VA
- Average rainfall in May: 2.91"
The wettest months (with the highest rainfall) are April and May (2.91").
The driest month (with the least rainfall) is January (1.69").
Average rainfall days in May
Rio, VA
- Average rainfall days in May: 17.1 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is November (8.9 days).
Average snowfall in May
Rio, VA
- Average snowfall in May: 0"
The month with the highest snowfall is March (3.07").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Rio, VA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (4.6 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
Rio, VA
- Average daylight in May: 14h and 1min
The month with the longest days is June (Average daylight: 14h and 48min).
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 July (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).
Average sunshine days in May
Rio, VA
- Average sunshine days in May: 11.4 days
The month with the most sunshine days is December (19.9 days).
The month with the least sunshine days is May (11.4 days).
Average UV index in May
Rio, 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, November and December (UV index 2).
Average cloud cover in May
Rio, VA
- Average cloud cover in May: 42
The month with the most cloud cover is March (Cloud cover 45).
The months with the least cloud cover are June and July (Cloud cover 31).
Average visibility in May
Rio, VA
- Average visibility in May: 5mi
The months with the highest visibility are February, March, April, June, July, August and November (6mi).
The months with the lowest visibility are January, May, September, October and December (5mi).
Rio, Virginia, USA
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