May weather forecastWellersburg, PA
May
Weather in May
May, the last month of the spring in Wellersburg, is an agreeable month, with temperature in the range of an average high of 69.4°F (20.8°C) and an average low of 49.6°F (9.8°C).Temperature
The shift into May is accompanied by a temperature increase, with the average high-temperature rising from a mild 58.8°F (14.9°C) in April to a pleasant 69.4°F (20.8°C). During May, the temperature tends to dip to an average of 49.6°F (9.8°C) at night.Humidity
In Wellersburg, Pennsylvania, the average relative humidity in May is 79%.Rainfall
May is the month with the most rainfall. Rain falls for 21.3 days and accumulates 3.46" (88mm) 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, Wellersburg aggregates 0.12" (3mm) of snow. In Wellersburg, during the entire year, snow falls for 56.7 days and aggregates up to 28.46" (723mm) of snow.Daylight
In May, the average length of the day is 14h and 23min.On the first day of May, sunrise is at 6:14 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 8:36 pm EDT.
Sunshine
In Wellersburg, the average sunshine in May is 8.7h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 5 in May interprets into the following recommendations:
Take necessary precautions - Defending against sun damage is advocated. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Wellersburg, PA
- Average high temperature in May: 69.4°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (33.3°F).
- Average low temperature in May: 49.6°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 (20.1°F).
Average pressure in May
Wellersburg, PA
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in May
Wellersburg, PA
- Average wind speed in May: 6.2mph
The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in May
Wellersburg, PA
- Average humidity in May: 79%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is July (76%).
Average rainfall in May
Wellersburg, PA
- Average rainfall in May: 3.46"
The wettest month (with the highest rainfall) is May (3.46").
The driest month (with the least rainfall) is November (1.85").
Average rainfall days in May
Wellersburg, PA
- 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 November (11.1 days).
Average snowfall in May
Wellersburg, PA
- Average snowfall in May: 0.12"
The month with the highest snowfall is February (6.85").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Wellersburg, PA
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Wellersburg, PA
- Average daylight in May: 14h and 24min
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 24min).
- Average sunshine in May: 8h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in May
Wellersburg, PA
- Average sunshine days in May: 6.8 days
The month with the most sunshine days is November (15.4 days).
The month with the least sunshine days is May (6.8 days).
Average UV index in May
Wellersburg, PA
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in May
Wellersburg, PA
- Average cloud cover in May: 46
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in May
Wellersburg, PA
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).





