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's onset brings a temperature rise, moving from a refreshing 61.3°F (16.3°C) in April to an agreeable 71.2°F (21.8°C). Swandale experiences an average nighttime temperature of 51.4°F (10.8°C) in the month of May.Humidity
In Swandale, the average relative humidity in May is 80%.Rainfall
The month with the most rainfall in Swandale is May, when the rain falls for 23.3 days and typically aggregates up to 4.21" (107mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.3 snowfall days, in May, Swandale aggregates 0.39" (10mm) of snow. In Swandale, during the entire year, snow falls for 60.4 days and aggregates up to 38.62" (981mm) of snow.Daylight
In May, the average length of the day is 14h and 17min.On the first day of May, sunrise is at 6:25 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 8:41 pm EDT.
Sunshine
In Swandale, the average sunshine in May is 8.9h.UV index
In Swandale, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index, 5 during May, leads to the following recommendations:
Be vigilant - Preventing sunburn is recommended. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Swandale in May?
What is the average humidity in May?
What is the wettest month?
How much does it rain in May?
What is the last month it snows?
What is the average length of the day in May?
What time are sunrise and sunset in May?
How many hours of sunshine does Swandale have in May?
How high is the UV index in May?
Average temperature in May
Swandale, WV
- Average high temperature in May: 71.2°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (36.5°F).
- Average low temperature in May: 51.4°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).
Average pressure in May
Swandale, WV
- Average pressure in May: 30.02"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in May
Swandale, WV
- Average wind speed in May: 5.8mph
The windiest months (with the highest average wind speed) are January and February (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in May
Swandale, WV
- Average humidity in May: 80%
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 (78%).
Average rainfall in May
Swandale, WV
- Average rainfall in May: 4.21"
The wettest month (with the highest rainfall) is May (4.21").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in May
Swandale, WV
- Average rainfall days in May: 23.3 days
The month with the highest number of rainy days is May (23.3 days).
The month with the least rainy days is November (12.2 days).
Average snowfall in May
Swandale, WV
- Average snowfall in May: 0.39"
The month with the highest snowfall is January (8.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Swandale, WV
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Swandale, 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 12min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in May
Swandale, WV
- Average sunshine days in May: 6.1 days
The month with the most sunshine days is October (14.6 days).
The month with the least sunshine days is May (6.1 days).
Average UV index in May
Swandale, WV
- Average UV index in May: 5
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Swandale, WV
- Average cloud cover in May: 44
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in May
Swandale, WV
- Average visibility in May: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).
Swandale, West Virginia, USA
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