May weather forecastLebanon, CT
May
Weather in May
The last month of the spring, May, is a refreshing month in Lebanon, Connecticut, with an average temperature fluctuating between 67.1°F (19.5°C) and 48.9°F (9.4°C).Temperature
May's arrival brings a temperature shift, moving from a refreshing 55.9°F (13.3°C) in April to a comfortable 67.1°F (19.5°C). During the nights in May, an average low-temperature of 48.9°F (9.4°C) is observed.Humidity
The average relative humidity in May in Lebanon, Connecticut, is 76%.Rainfall
In Lebanon, in May, it is raining for 17.1 days, with typically 2.76" (70mm) of accumulated precipitation. Throughout the year, there are 164.2 rainfall days, and 33.74" (857mm) of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall. May is the last month it regularly snows. During 0.2 snowfall days, in May, Lebanon aggregates 0.28" (7mm) of snow. In Lebanon, Connecticut, during the entire year, snow falls for 31.6 days and aggregates up to 15.98" (406mm) of snow.Daylight
The average length of the day in May in Lebanon is 14h and 33min.On the first day of May, sunrise is at 5:44 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 5:16 am and sunset at 8:16 pm EDT.
Sunshine
In May, the average sunshine is 8.3h.UV index
In Lebanon, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index, 5 during May, leads to the following recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Lebanon, CT
- Average high temperature in May: 67.1°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in May: 48.9°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in May
Lebanon, 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
Lebanon, CT
- Average wind speed in May: 7mph
The windiest months (with the highest average wind speed) are January and March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in May
Lebanon, CT
- Average humidity in May: 76%
The months with the highest relative humidity are February and October (79%).
The month with the lowest relative humidity is April (72%).
Average rainfall in May
Lebanon, CT
- Average rainfall in May: 2.76"
The wettest month (with the highest rainfall) is December (3.46").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in May
Lebanon, CT
- Average rainfall days in May: 17.1 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in May
Lebanon, CT
- Average snowfall in May: 0.28"
The month with the highest snowfall is March (4.41").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Lebanon, CT
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (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
Lebanon, 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 12min).
- Average sunshine in May: 8h and 18min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).
Average sunshine days in May
Lebanon, CT
- Average sunshine days in May: 12.3 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in May
Lebanon, 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
Lebanon, CT
- Average cloud cover in May: 48
The months with the most cloud cover are February, March, May and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in May
Lebanon, 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).





