May weather forecastSaint Clairsville, OH
May
Weather in May
May, the last month of the spring in Saint Clairsville, is a pleasant month, with an average temperature ranging between max 72.1°F (22.3°C) and min 51.1°F (10.6°C).Temperature
As Saint Clairsville transitions into May, the average high-temperature shows a change, moving from a mild 60.4°F (15.8°C) in April to an agreeable 72.1°F (22.3°C). Nightly temperatures drop to an average low of 51.1°F (10.6°C) in May.Humidity
In May, the average relative humidity is 79%.Rainfall
In Saint Clairsville, in May, during 19.1 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. In Saint Clairsville, during the entire year, the rain falls for 159.9 days and collects up to 22.99" (584mm) 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, Saint Clairsville aggregates 0.12" (3mm) of snow. In Saint Clairsville, during the entire year, snow falls for 55.5 days and aggregates up to 15.67" (398mm) of snow.Daylight
In May, the average length of the day is 14h and 25min.On the first day of May, sunrise is at 6:22 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 5:56 am and sunset at 8:46 pm EDT.
Sunshine
In May, the average sunshine is 8.5h.UV index
In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index, 5 in May, converts into the following recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Saint Clairsville, OH
- Average high temperature in May: 72.1°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in May: 51.1°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in May
Saint Clairsville, OH
- Average pressure in May: 29.99"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
Saint Clairsville, OH
- Average wind speed in May: 6mph
The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in May
Saint Clairsville, OH
- Average humidity in May: 79%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is April (77%).
Average rainfall in May
Saint Clairsville, OH
- Average rainfall in May: 2.32"
The wettest month (with the highest rainfall) is April (2.4").
The driest month (with the least rainfall) is November (1.5").
Average rainfall days in May
Saint Clairsville, OH
- Average rainfall days in May: 19.1 days
The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in May
Saint Clairsville, OH
- Average snowfall in May: 0.12"
The month with the highest snowfall is February (3.58").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Saint Clairsville, OH
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (15.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Saint Clairsville, OH
- Average daylight in May: 14h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in May: 8h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in May
Saint Clairsville, OH
- Average sunshine days in May: 9.6 days
The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is February (9.4 days).
Average UV index in May
Saint Clairsville, OH
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Saint Clairsville, OH
- Average cloud cover in May: 47
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in May
Saint Clairsville, OH
- Average visibility in May: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January and February (4mi).
