May weather forecastUnionville, CT
May
Weather in May
May, the last month of the spring in Unionville, is a refreshing month, with an average temperature fluctuating between 48.7°F (9.3°C) and 67.6°F (19.8°C).Temperature
May brings a temperature increase, with average high-temperatures moving from April's moderate 56.1°F (13.4°C) to a comfortable 67.6°F (19.8°C). In May, Unionville records an average nighttime temperature of 48.7°F (9.3°C).Humidity
In Unionville, the average relative humidity in May is 74%.Rainfall
In May, the rain falls for 16.9 days. Throughout May, 2.6" (66mm) of precipitation is accumulated. In Unionville, Connecticut, during the entire year, the rain falls for 159.6 days and collects up to 31.97" (812mm) of precipitation.Snowfall
Months with snowfall in Unionville, Connecticut, are January through May, October through December. May is the last month it regularly snows. During 0.2 snowfall days, in May, Unionville aggregates 0.24" (6mm) of snow. Throughout the year, there are 33.1 snowfall days, and 18.39" (467mm) of snow is accumulated.Daylight
The average length of the day in May in Unionville is 14h and 34min.On the first day of the month, sunrise is at 5:46 am and sunset at 7:50 pm. On the last day of May, in Unionville, sunrise is at 5:19 am and sunset at 8:19 pm EDT.
Sunshine
The average sunshine in May in Unionville, Connecticut, is 8.4h.UV index
The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum daily UV index of 5 during May morphs into the following directions:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Unionville, CT
- Average high temperature in May: 67.6°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°F).
- Average low temperature in May: 48.7°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in May
Unionville, 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
Unionville, CT
- Average wind speed in May: 6.5mph
The windiest months (with the highest average wind speed) are January and March (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in May
Unionville, 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
Unionville, CT
- Average rainfall in May: 2.6"
The wettest month (with the highest rainfall) is December (3.43").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in May
Unionville, CT
- Average rainfall days in May: 16.9 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (9.4 days).
Average snowfall in May
Unionville, CT
- Average snowfall in May: 0.24"
The month with the highest snowfall is February (5.24").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Unionville, CT
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is February (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Unionville, 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 24min
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
Unionville, CT
- Average sunshine days in May: 12.3 days
The month with the most sunshine days is January (17.1 days).
The month with the least sunshine days is June (11.6 days).
Average UV index in May
Unionville, 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
Unionville, CT
- Average cloud cover in May: 47
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in May
Unionville, CT
- Average visibility in May: 5mi
The months with the highest visibility are April, October, November and December (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August and September (5mi).
