May weather forecastWindsor, CT
May
Weather in May
May brings the anticipation of summer in Windsor with a further increase in temperatures. During this time, greenery thrives, and a pleasant atmosphere prevails, making it an excellent period for outdoor activities. Enhancement in the daylight hours contributes to the vibrancy of life during this period. Agendas of regular swimming, barbecues, and garden picnics become increasingly possible. The warmth and comfort provided by this weather is essential in stimulating the beginning of the festivities associated with the oncoming summer months.Temperature
In Windsor, the average high-temperature in May rises, from a refreshing 56.7°F (13.7°C) in April, to an agreeable 68.9°F (20.5°C). During May, the nighttime temperature averages to a chilly 49.5°F (9.7°C).Humidity
In May, the average relative humidity is 74%.Rainfall
In Windsor, in May, during 16.5 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. Throughout the year, there are 164.8 rainfall days, and 31.77" (807mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Windsor aggregates 0.31" (8mm) of snow. Throughout the year, there are 31.6 snowfall days, and 17.13" (435mm) of snow is accumulated.Daylight
The average length of the day in May in Windsor is 14h and 34min.On the first day of the month, sunrise is at 5:45 am and sunset at 7:49 pm. On the last day of May, sunrise is at 5:18 am and sunset at 8:18 pm EDT.
Sunshine
In May, the average sunshine is 8.5h.UV index
In Windsor, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 5 during May translates into the following directions:
Be vigilant - Preventing sunburn is recommended. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Stay sun-safe with clothing that is both closely woven and worn loosely. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Windsor, CT
- Average high temperature in May: 68.9°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 (32.9°F).
- Average low temperature in May: 49.5°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in May
Windsor, CT
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Windsor, CT
- Average wind speed in May: 6.5mph
The windiest months (with the highest average wind speed) are January and March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in May
Windsor, CT
- Average humidity in May: 74%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (71%).
Average rainfall in May
Windsor, CT
- Average rainfall in May: 2.6"
The wettest month (with the highest rainfall) is December (3.27").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days in May
Windsor, CT
- Average rainfall days in May: 16.5 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (10 days).
Average snowfall in May
Windsor, CT
- Average snowfall in May: 0.31"
The month with the highest snowfall is February (4.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Windsor, CT
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is February (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Windsor, 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 30min
The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in May
Windsor, CT
- Average sunshine days in May: 11.6 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (11.2 days).
Average UV index in May
Windsor, CT
- Average UV index in May: 5
The months with the highest UV index are June and July (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
Windsor, CT
- Average cloud cover in May: 46
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in May
Windsor, CT
- Average visibility in May: 5mi
The months with the highest visibility are January, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are February, May and September (5mi).





