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 brings an increase in the average high-temperature, progressing from a refreshing 62.4°F (16.9°C) in April to an agreeable 73.2°F (22.9°C). Roanoke, in May, witnesses an average low-temperature of 52.3°F (11.3°C).Humidity
In May, the average relative humidity in Roanoke is 79%.Rainfall
The month with the most rainfall is May, when the rain falls for 20.8 days and typically aggregates up to 4.49" (114mm) of precipitation.Snowfall
Months with snowfall in Roanoke are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Roanoke aggregates 0.59" (15mm) of snow. Throughout the year, there are 58.9 snowfall days, and 32.17" (817mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 19min.On the first day of the month, sunrise is at 6:22 am and sunset at 8:14 pm. On the last day of May, sunrise is at 5:58 am and sunset at 8:41 pm EDT.
Sunshine
The average sunshine in May is 8.7h.UV index
May, July and August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 6 during May translates into the following guidance:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Roanoke in May?
What is the average humidity in May?
What is the rainiest month?
How many days does it rain in May in Roanoke?
What is the last month it snows?
What is the average length of the day in May in Roanoke?
When are sunrise and sunset in May?
How long on average sun shines in May?
What is the month with the highest UV index?
How high is the UV index in May in Roanoke?
Average temperature in May
Roanoke, WV
- Average high temperature in May: 73.2°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 (37°F).
- Average low temperature in May: 52.3°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in May
Roanoke, 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
Roanoke, WV
- Average wind speed in May: 5.5mph
The windiest months (with the highest average wind speed) are January and February (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity in May
Roanoke, WV
- Average humidity in May: 79%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is August (76%).
Average rainfall in May
Roanoke, WV
- Average rainfall in May: 4.49"
The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in May
Roanoke, WV
- Average rainfall days in May: 20.8 days
The month with the highest number of rainy days is May (20.8 days).
The month with the least rainy days is November (11.4 days).
Average snowfall in May
Roanoke, WV
- Average snowfall in May: 0.59"
The month with the highest snowfall is January (8.15").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Roanoke, WV
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (16.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Roanoke, 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: 8h and 4min
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 18min).
Average sunshine days in May
Roanoke, WV
- Average sunshine days in May: 9 days
The month with the most sunshine days is October (14.1 days).
The months with the least sunshine days are January and February (7.6 days).
Average UV index in May
Roanoke, WV
- Average UV index in May: 6
The months with the highest UV index are May, 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
Roanoke, WV
- Average cloud cover in May: 45
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in May
Roanoke, WV
- Average visibility in May: 5mi
The month with the highest visibility is November (6mi).
The months with the lowest visibility are January and February (4mi).
Roanoke, West Virginia, USA
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