May weather forecastDiana, WV
May
Weather in May
The last month of the spring, May, is an agreeable month in Diana, West Virginia, with temperature in the range of an average low of 52.3°F (11.3°C) and an average high of 72.1°F (22.3°C).Temperature
Diana's weather in May shows a rise in the average high-temperature, moving up from April's comfortable 61.9°F (16.6°C) to an agreeable 72.1°F (22.3°C). An average nighttime temperature of 52.3°F (11.3°C) is recorded during May.Humidity
In Diana, the average relative humidity in May is 79%.Rainfall
May is the month with the most rainfall. Rain falls for 21.5 days and accumulates 4.37" (111mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Diana. May is the last month it regularly snows in Diana, West Virginia. During 0.3 snowfall days, in May, Diana aggregates 0.47" (12mm) of snow. In Diana, during the entire year, snow falls for 58.6 days and aggregates up to 34.25" (870mm) of snow.Daylight
In May, the average length of the day is 14h and 17min.On the first day of the month, sunrise is at 6:23 am and sunset at 8:14 pm. On the last day of May, in Diana, sunrise is at 5:59 am and sunset at 8:40 pm EDT.
Sunshine
In May, the average sunshine is 9h.UV index
In Diana, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The daily maximum UV index of 5 in May interprets into the following advice:
Adopt protective measures - Suggestions to resist sunburn are offered. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Diana, WV
- Average high temperature in May: 72.1°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (36.5°F).
- Average low temperature in May: 52.3°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in May
Diana, 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 (29.97"Hg).
Average wind speed in May
Diana, WV
- Average wind speed in May: 5.7mph
The windiest months (with the highest average wind speed) are January and February (7mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity in May
Diana, WV
- Average humidity in May: 79%
The months with the highest relative humidity are January and February (83%).
The months with the lowest relative humidity are June, August and November (77%).
Average rainfall in May
Diana, WV
- Average rainfall in May: 4.37"
The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in May
Diana, WV
- Average rainfall days in May: 21.5 days
The month with the highest number of rainy days is May (21.5 days).
The month with the least rainy days is February (12.9 days).
Average snowfall in May
Diana, WV
- Average snowfall in May: 0.47"
The month with the highest snowfall is January (8.46").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Diana, WV
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (16.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Diana, 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: 9h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in May
Diana, WV
- Average sunshine days in May: 7.8 days
The month with the most sunshine days is October (14.3 days).
The months with the least sunshine days are January and February (7.3 days).
Average UV index in May
Diana, WV
- Average UV index in May: 5
The months with the highest UV index are 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
Diana, WV
- Average cloud cover in May: 43
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in May
Diana, WV
- Average visibility in May: 5mi
The months with the highest visibility are April and November (6mi).
The month with the lowest visibility is January (4mi).
