May weather forecastLebanon, TN
May
Weather in May
In Lebanon, Tennessee, May is characterized by the definite departure from spring, as the thermometer shows a high average of 77.4°F (25.2°C), announcing the arrival of summer. Considered a relatively dry month compared to the preceding period of April, it sets the stage for the upcoming dry summer months. Tennessee's summer sun shines and the daylight length stretches, offering ample time for outdoor activities. The reappearance of a higher wind speed in May implies the advent of the windy season, often associated with summer. Temperatures in May act as a precursor to the higher temperatures and low-pressure conditions that June has in store.Temperature
Lebanon's transition into May is noticed by a slight rise in the average high-temperature, advancing from a pleasant 68.5°F (20.3°C) in April to a moderately hot 77.4°F (25.2°C). In Lebanon, an average nighttime temperature of 58.1°F (14.5°C) is expected during May.Humidity
In May, the average relative humidity is 78%.Rainfall
In Lebanon, during May, the rain falls for 17.9 days and regularly aggregates up to 3.35" (85mm) of precipitation. In Lebanon, Tennessee, during the entire year, the rain falls for 182.4 days and collects up to 39.8" (1011mm) of precipitation.Snowfall
In Lebanon, snow does not fall in May through October.Daylight
In May, the average length of the day is 14h and 6min.On the first day of the month, sunrise is at 5:51 am and sunset at 7:33 pm. On the last day of May, sunrise is at 5:29 am and sunset at 7:56 pm CDT.
Sunshine
In Lebanon, the average sunshine in May is 9.5h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 6 during May translates into the following guidance:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Lebanon, TN
- Average high temperature in May: 77.4°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (43.9°F).
- Average low temperature in May: 58.1°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (30°F).
Average pressure in May
Lebanon, TN
- Average pressure in May: 30"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in May
Lebanon, TN
- Average wind speed in May: 6mph
The windiest month (with the highest average wind speed) is February (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.4mph).
Average humidity in May
Lebanon, TN
- Average humidity in May: 78%
The months with the highest relative humidity are March and December (79%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in May
Lebanon, TN
- Average rainfall in May: 3.35"
The wettest month (with the highest rainfall) is July (4.92").
The driest month (with the least rainfall) is November (2.24").
Average rainfall days in May
Lebanon, TN
- Average rainfall days in May: 17.9 days
The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is November (11 days).
Average snowfall in May
Lebanon, TN
- Average snowfall in May: 0"
The month with the highest snowfall is January (1.02").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Lebanon, TN
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (5.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Lebanon, TN
- Average daylight in May: 14h and 6min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in May: 9h and 30min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in May
Lebanon, TN
- Average sunshine days in May: 10.8 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is July (9.2 days).
Average UV index in May
Lebanon, TN
- Average UV index in May: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in May
Lebanon, TN
- Average cloud cover in May: 37
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in May
Lebanon, TN
- 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).





