May weather forecastSouth Willington, CT
May
Weather in May
May, the last month of the spring in South Willington, is a pleasant month, with an average temperature fluctuating between 68.4°F (20.2°C) and 48.6°F (9.2°C).Temperature
With the transition into May, South Willington experiences an increase in average high-temperatures, moving up from a refreshing 56.3°F (13.5°C) in April to an agreeable 68.4°F (20.2°C). May nights in South Willington experience a consistent temperature drop to a chilly 48.6°F (9.2°C).Humidity
The average relative humidity in May is 75%.Rainfall
The wettest months are May through July, with an average 1.1" (28mm) of rainfall.Snowfall
January through May, November and December are months with snowfall in South Willington. May is the last month it regularly snows in South Willington, Connecticut. During 0.1 snowfall days, in May, South Willington aggregates 0.04" (1mm) of snow. Throughout the year, in South Willington, there are 23.1 snowfall days, and 4.69" (119mm) of snow is accumulated.Daylight
In South Willington, the average length of the day in May is 14h and 34min.On the first day of May in South Willington, sunrise is at 5:44 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 5:16 am and sunset at 8:17 pm EDT.
Sunshine
In May, the average sunshine in South Willington is 8.3h.UV index
In South Willington, Connecticut, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 5 during May leads to these advisories:
Preventative actions are necessary - Recommendations to ward off sunburn are given. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
South Willington, CT
- Average high temperature in May: 68.4°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 (32.4°F).
- Average low temperature in May: 48.6°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in May
South Willington, CT
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
South Willington, CT
- Average wind speed in May: 6.6mph
The windiest months (with the highest average wind speed) are January and March (8.2mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in May
South Willington, CT
- Average humidity in May: 75%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (71%).
Average rainfall in May
South Willington, CT
- Average rainfall in May: 1.1"
The wettest months (with the highest rainfall) are May, June and July (1.1").
The driest month (with the least rainfall) is September (0.39").
Average rainfall days in May
South Willington, CT
- Average rainfall days in May: 11.5 days
The month with the highest number of rainy days is June (12.1 days).
The months with the least rainy days are January and February (5.5 days).
Average snowfall in May
South Willington, CT
- Average snowfall in May: 0.04"
The month with the highest snowfall is February (1.5").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
South Willington, CT
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is February (6.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
South Willington, CT
- 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 18min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in May
South Willington, CT
- Average sunshine days in May: 17.3 days
The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is June (15.7 days).
Average UV index in May
South Willington, CT
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in May
South Willington, CT
- Average cloud cover in May: 48
The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in May
South Willington, CT
- Average visibility in May: 5mi
The months with the highest visibility are January, March, April, October, November and December (6mi).
The months with the lowest visibility are February, May, June, July, August and September (5mi).





