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 onset of May marks an increase in the average high-temperature, moving from a refreshing 61.3°F (16.3°C) in April to an agreeable 71.2°F (21.8°C). Nallen experiences a mean temperature of 51.4°F (10.8°C) during May nights.Humidity
The average relative humidity in May is 80%.Rainfall
The month with the most rainfall is May, when the rain falls for 23.3 days and typically aggregates up to 4.21" (107mm) 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, Nallen aggregates 0.39" (10mm) of snow. In Nallen, during the entire year, snow falls for 60.4 days and aggregates up to 38.62" (981mm) of snow.Daylight
In Nallen, the average length of the day in May is 14h and 15min.On the first day of the month, sunrise is at 6:26 am and sunset at 8:14 pm. On the last day of May, sunrise is at 6:02 am and sunset at 8:40 pm EDT.
Sunshine
In May, the average sunshine is 8.9h.UV index
The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The average daily UV index of 5 in May transforms into the following instructions:
Undertake protective steps - Recommendations to avoid sunburn are issued. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
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 wettest month?
How many days does it rain in May?
What is the last month it snows?
How many hours of daylight does Nallen have in May?
What time are sunrise and sunset in May?
How many hours of sunshine does Nallen have in May?
How high is the UV index in May?
Average temperature in May
Nallen, 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
Nallen, 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
Nallen, 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
Nallen, 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
Nallen, 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
Nallen, 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
Nallen, 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
Nallen, 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
Nallen, 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 36min).
- 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
Nallen, 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
Nallen, 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
Nallen, 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
Nallen, 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).
Nallen, West Virginia, USA
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