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 shows a rise in the average high-temperature, moving from April's comfortable 61.7°F (16.5°C) to an agreeable 72.1°F (22.3°C). Despite the significant gap from daytime peaks, Rio experiences an average low-temperature of 50.5°F (10.3°C) in May.Humidity
The average relative humidity in May is 77%.Rainfall
The month with the most rainfall is May, when the rain falls for 18.4 days and typically aggregates up to 3.11" (79mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows in Rio. During 0.1 snowfall days, in May, Rio aggregates 0.08" (2mm) of snow. Throughout the year, there are 31.2 snowfall days, and 16.5" (419mm) of snow is accumulated.Daylight
The average length of the day in May in Rio is 14h and 20min.On the first day of the month, sunrise is at 6:15 am and sunset at 8:08 pm. On the last day of May, sunrise is at 5:50 am and sunset at 8:34 pm EDT.
Sunshine
In Rio, the average sunshine in May is 9.2h.UV index
In May, the average daily maximum UV index in Rio is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: In May, the maximum UV index of 5 transforms into these recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Rio in May?
What is the average humidity in May in Rio?
What is the wettest month in Rio?
How many days does it rain in May in Rio?
What is the last month it snows in Rio?
How many hours of daylight does Rio have in May?
When are sunrise and sunset in May in Rio?
How long on average sun shines in May in Rio?
How high is the UV index in May in Rio?
Average temperature in May
Rio, WV
- Average high temperature in May: 72.1°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in May: 50.5°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in May
Rio, WV
- 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 (29.95"Hg).
Average wind speed in May
Rio, WV
- Average wind speed in May: 5.4mph
The windiest month (with the highest average wind speed) is February (7.1mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in May
Rio, WV
- Average humidity in May: 77%
The month with the highest relative humidity is October (79%).
The months with the lowest relative humidity are April and July (74%).
Average rainfall in May
Rio, WV
- Average rainfall in May: 3.11"
The wettest month (with the highest rainfall) is May (3.11").
The driest months (with the least rainfall) are February and November (1.73").
Average rainfall days in May
Rio, WV
- Average rainfall days in May: 18.4 days
The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is November (9.1 days).
Average snowfall in May
Rio, WV
- Average snowfall in May: 0.08"
The month with the highest snowfall is March (4.21").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Rio, WV
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Rio, WV
- Average daylight in May: 14h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- 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 6min).
Average sunshine days in May
Rio, WV
- Average sunshine days in May: 10.1 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is May (10.1 days).
Average UV index in May
Rio, WV
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in May
Rio, WV
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in May
Rio, WV
- Average visibility in May: 5mi
The months with the highest visibility are April, June, July, November and December (6mi).
The months with the lowest visibility are January, February, March, May, August, September and October (5mi).
Rio, West Virginia, USA
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