May weather forecastNew Canaan, CT
May
Weather in May
The last month of the spring, May, is a comfortable month in New Canaan, Connecticut, with an average temperature varying between 51.8°F (11°C) and 66°F (18.9°C).Temperature
With the transition into May, New Canaan experiences an increase in average high-temperatures, moving up from a fresh 55.2°F (12.9°C) in April to an enjoyable 66°F (18.9°C). During May, the nighttime temperature in New Canaan, Connecticut, averages of 51.8°F (11°C).Humidity
February, May, June, October and December, with an average relative humidity of 76%, are the most humid months.Rainfall
In New Canaan, in May, during 17.5 rainfall days, 3.23" (82mm) of precipitation is typically accumulated. In New Canaan, during the entire year, the rain falls for 170.2 days and collects up to 38.62" (981mm) of precipitation.Snowfall
In New Canaan, snow does not fall in May through October.Daylight
In May, the average length of the day in New Canaan is 14h and 31min.On the first day of May in New Canaan, sunrise is at 5:50 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 5:23 am and sunset at 8:19 pm EDT.
Sunshine
In May, the average sunshine is 8.7h.UV index
In May, the average daily maximum UV index in New Canaan is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: In May, the maximum UV index of 5 transforms into these recommendations:
Exercise prevention - Precautions against solar damage are endorsed. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
New Canaan, CT
- Average high temperature in May: 66°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in May: 51.8°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure in May
New Canaan, 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
New Canaan, CT
- Average wind speed in May: 7.1mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).
Average humidity in May
New Canaan, CT
- Average humidity in May: 76%
The months with the highest relative humidity are February, May, June, October and December (76%).
The month with the lowest relative humidity is April (72%).
Average rainfall in May
New Canaan, CT
- Average rainfall in May: 3.23"
The wettest month (with the highest rainfall) is December (4.17").
The driest month (with the least rainfall) is January (2.44").
Average rainfall days in May
New Canaan, CT
- Average rainfall days in May: 17.5 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is January (8.6 days).
Average snowfall in May
New Canaan, CT
- Average snowfall in May: 0"
The month with the highest snowfall is February (3.46").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
New Canaan, CT
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is February (8.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
New Canaan, CT
- 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 18min).
- Average sunshine in May: 8h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in May
New Canaan, CT
- Average sunshine days in May: 11.5 days
The month with the most sunshine days is January (17.3 days).
The month with the least sunshine days is June (10.1 days).
Average UV index in May
New Canaan, 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
New Canaan, CT
- Average cloud cover in May: 44
The months with the most cloud cover are February, March and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in May
New Canaan, CT
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
