May weather forecastMay, WV
May
Weather in May
The last month of the spring, May, is a pleasant month in May, West Virginia, with an average temperature ranging between min 48.7°F (9.3°C) and max 68.4°F (20.2°C).Temperature
May sees a rise in the average high-temperature, climbing from a mild 58.3°F (14.6°C) in April to an agreeable 68.4°F (20.2°C). May encounters an average low-temperature of 48.7°F (9.3°C) during May nights.Humidity
In May, the average relative humidity is 81%.Rainfall
The month with the most rainfall is May, when the rain falls for 21.8 days and typically aggregates up to 4.13" (105mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.5 snowfall days, in May, May aggregates 0.87" (22mm) of snow. In May, during the entire year, snow falls for 67 days and aggregates up to 41.3" (1049mm) of snow.Daylight
In May, the average length of the day is 14h and 18min.On the first day of May in May, sunrise is at 6:20 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 5:56 am and sunset at 8:37 pm EDT.
Sunshine
The average sunshine is 8.7h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In May, a daily maximum UV index of 5 leads to the following instructions:
Be vigilant - A duty to shield skin and eyes from injury exists. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
May, WV
- Average high temperature in May: 68.4°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in May: 48.7°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in May
May, WV
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in May
May, WV
- Average wind speed in May: 6.1mph
The windiest months (with the highest average wind speed) are January and February (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in May
May, WV
- Average humidity in May: 81%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are June, July, August and November (79%).
Average rainfall in May
May, WV
- Average rainfall in May: 4.13"
The wettest month (with the highest rainfall) is May (4.13").
The driest month (with the least rainfall) is September (2.13").
Average rainfall days in May
May, WV
- Average rainfall days in May: 21.8 days
The month with the highest number of rainy days is May (21.8 days).
The month with the least rainy days is February (11.5 days).
Average snowfall in May
May, WV
- Average snowfall in May: 0.87"
The month with the highest snowfall is February (9.84").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
May, WV
- Average snowfall days in May: 0.5 days
The month with the highest number of snowfall days is January (17.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
May, WV
- Average daylight in May: 14h and 18min
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 30min).
- Average sunshine in May: 8h and 42min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in May
May, WV
- Average sunshine days in May: 6.9 days
The month with the most sunshine days is October (12.7 days).
The month with the least sunshine days is January (6.5 days).
Average UV index in May
May, WV
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in May
May, WV
- Average cloud cover in May: 48
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in May
May, WV
- Average visibility in May: 5mi
The months with the highest visibility are March, April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are January, February and September (4mi).





