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
The commencement of May sees a shift in the average high-temperature, moving from a comfortable 60.8°F (16°C) in April to a pleasant 71.4°F (21.9°C). In the month of May, Rock Cave's average low-temperature falls to a fresh 51.4°F (10.8°C).Humidity
In Rock Cave, the average relative humidity in May is 79%.Rainfall
The month with the most rainfall is May, when the rain falls for 21.3 days and typically aggregates up to 4.33" (110mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Rock Cave aggregates 0.75" (19mm) of snow. Throughout the year, there are 62.1 snowfall days, and 37.83" (961mm) of snow is accumulated.Daylight
The average length of the day in May in Rock Cave, West Virginia, is 14h and 19min.On the first day of May, sunrise is at 6:22 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 8:40 pm EDT.
Sunshine
In Rock Cave, the average sunshine in May is 8.8h.UV index
In Rock Cave, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The daily maximum UV index of 5 in May interprets into the following advice:
Guard yourself - Precautionary measures against sun damage are advocated. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May?
What is the average humidity in May?
What is the rainiest month?
How many days does it rain in May?
What is the last month it snows?
How many hours of daylight does Rock Cave have in May?
When are sunrise and sunset in May?
How many hours of sunshine does Rock Cave have in May?
What is the UV index reading in May?
Average temperature in May
Rock Cave, WV
- Average high temperature in May: 71.4°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in May: 51.4°F
The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in May
Rock Cave, 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
Rock Cave, WV
- Average wind speed in May: 5.8mph
The windiest month (with the highest average wind speed) is February (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in May
Rock Cave, WV
- Average humidity in May: 79%
The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are June, July, August and November (77%).
Average rainfall in May
Rock Cave, WV
- Average rainfall in May: 4.33"
The wettest month (with the highest rainfall) is May (4.33").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in May
Rock Cave, WV
- Average rainfall days in May: 21.3 days
The month with the highest number of rainy days is May (21.3 days).
The month with the least rainy days is February (11.4 days).
Average snowfall in May
Rock Cave, WV
- Average snowfall in May: 0.75"
The month with the highest snowfall is January (9.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Rock Cave, WV
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (17.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Rock Cave, WV
- Average daylight in May: 14h and 2min
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 5min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in May
Rock Cave, WV
- Average sunshine days in May: 7.7 days
The month with the most sunshine days is November (13.2 days).
The month with the least sunshine days is February (7.2 days).
Average UV index in May
Rock Cave, WV
- Average UV index in May: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Rock Cave, WV
- Average cloud cover in May: 45
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in May
Rock Cave, WV
- Average visibility in May: 5mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is January (4mi).
Rock Cave, West Virginia, USA
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