May weather forecastStoneboro, PA
May
Weather in May
The last month of the spring, May, is an agreeable month in Stoneboro, Pennsylvania, with an average temperature varying between 68.9°F (20.5°C) and 48°F (8.9°C).Temperature
May comes with an increase, with the average high-temperature moving from a mild 56.1°F (13.4°C) in April to a pleasant 68.9°F (20.5°C). May nights experience a consistent temperature drop to a chilly 48°F (8.9°C).Humidity
The least humid month in Stoneboro is May, with an average relative humidity of 79%.Rainfall
In Stoneboro, in May, it is raining for 19.3 days, with typically 3.23" (82mm) of accumulated precipitation. Throughout the year, there are 174.1 rainfall days, and 34.65" (880mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.6 snowfall days, in May, Stoneboro aggregates 0.31" (8mm) of snow. Throughout the year, there are 83.8 snowfall days, and 39.13" (994mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 31min.On the first day of May, sunrise is at 6:16 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 8:46 pm EDT.
Sunshine
The average sunshine in May is 8.4h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 5 during May leads to these advisories:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Stoneboro, PA
- Average high temperature in May: 68.9°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (30.2°F).
- Average low temperature in May: 48°F
The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in May
Stoneboro, PA
- Average pressure in May: 29.99"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in May
Stoneboro, PA
- Average wind speed in May: 6.5mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in May
Stoneboro, PA
- Average humidity in May: 79%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (79%).
Average rainfall in May
Stoneboro, PA
- Average rainfall in May: 3.23"
The wettest month (with the highest rainfall) is April (3.58").
The driest month (with the least rainfall) is September (2.28").
Average rainfall days in May
Stoneboro, PA
- Average rainfall days in May: 19.3 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (7.7 days).
Average snowfall in May
Stoneboro, PA
- Average snowfall in May: 0.31"
The month with the highest snowfall is January (10.31").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Stoneboro, PA
- Average snowfall days in May: 0.6 days
The month with the highest number of snowfall days is January (21.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Stoneboro, PA
- Average daylight in May: 14h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in May: 8h and 24min
The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days in May
Stoneboro, PA
- Average sunshine days in May: 9.6 days
The month with the most sunshine days is September (12.8 days).
The month with the least sunshine days is February (5.8 days).
Average UV index in May
Stoneboro, PA
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Stoneboro, PA
- Average cloud cover in May: 47
The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in May
Stoneboro, PA
- Average visibility in May: 5mi
The months with the highest visibility are March, April, May, June, July, August, October and November (5mi).
The months with the lowest visibility are January, February, September and December (4mi).
