May weather forecastWellsville, NY
May
Weather in May
May, the last month of the spring in Wellsville, is a comfortable month, with an average temperature varying between 65.7°F (18.7°C) and 45.1°F (7.3°C).Temperature
The arrival of May signals an increase in the average high-temperature, moving from a cool 52.2°F (11.2°C) in April to a refreshing 65.7°F (18.7°C). The temperature in Wellsville, New York, lowers to an average of 45.1°F (7.3°C) during May nights.Humidity
The least humid month is May, with an average relative humidity of 78%.Rainfall
In Wellsville, in May, during 18.7 rainfall days, 2.52" (64mm) of precipitation is typically accumulated. In Wellsville, during the entire year, the rain falls for 155.8 days and collects up to 26.97" (685mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.9 snowfall days, in May, Wellsville aggregates 0.43" (11mm) of snow. In Wellsville, during the entire year, snow falls for 91.9 days and aggregates up to 44.76" (1137mm) of snow.Daylight
In May, the average length of the day in Wellsville is 14h and 35min.On the first day of May in Wellsville, sunrise is at 6:06 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 8:40 pm EDT.
Sunshine
In Wellsville, the average sunshine in May is 8.2h.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 moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: A daily maximum UV index of 5 in May translates into the following instructions:
Exercise prevention - Precautions against solar damage are endorsed. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Wellsville, NY
- Average high temperature in May: 65.7°F
The warmest month (with the highest average high temperature) is July (77.7°F).
The month with the lowest average high temperature is January (27.1°F).
- Average low temperature in May: 45.1°F
The month with the highest average low temperature is July (56.5°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).
Average pressure in May
Wellsville, NY
- Average pressure in May: 30"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in May
Wellsville, NY
- Average wind speed in May: 7.8mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in May
Wellsville, NY
- Average humidity in May: 78%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is May (78%).
Average rainfall in May
Wellsville, NY
- Average rainfall in May: 2.52"
The wettest month (with the highest rainfall) is October (2.95").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in May
Wellsville, NY
- Average rainfall days in May: 18.7 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is January (6 days).
Average snowfall in May
Wellsville, NY
- Average snowfall in May: 0.43"
The month with the highest snowfall is February (10.71").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Wellsville, NY
- Average snowfall days in May: 0.9 days
The month with the highest number of snowfall days is January (19.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Wellsville, NY
- Average daylight in May: 14h and 36min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in May: 8h and 12min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The months with the least sunshine are January and December (Average sunshine: 2h and 36min).
Average sunshine days in May
Wellsville, NY
- Average sunshine days in May: 10.4 days
The month with the most sunshine days is September (14.6 days).
The month with the least sunshine days is February (7.1 days).
Average UV index in May
Wellsville, NY
- 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 and December (UV index 1).
Average cloud cover in May
Wellsville, NY
- Average cloud cover in May: 50
The month with the most cloud cover is January (Cloud cover 78).
The month with the least cloud cover is July (Cloud cover 41).
Average visibility in May
Wellsville, NY
- Average visibility in May: 5mi
The months with the highest visibility are March, April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are January, February and September (4mi).





