May weather forecastMount Cumberland, TN
May
Weather in May
The last month of the spring, May, is a warm month in Mount Cumberland, Tennessee, with an average temperature varying between 77.9°F (25.5°C) and 56.5°F (13.6°C).Temperature
The onset of May brings a minor temperature shift, with the average high-temperature moving from a pleasant 69.4°F (20.8°C) in April to a warm 77.9°F (25.5°C). Mount Cumberland records an average nighttime low-temperature of 56.5°F (13.6°C) throughout May.Humidity
In May, the average relative humidity is 76%.Rainfall
In Mount Cumberland, during May, the rain falls for 11.4 days and regularly aggregates up to 1.3" (33mm) of precipitation. In Mount Cumberland, during the entire year, the rain falls for 122.6 days and collects up to 17.44" (443mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in May is 14h and 2min.On the first day of the month, sunrise is at 6:45 am and sunset at 8:24 pm. On the last day of May, sunrise is at 6:24 am and sunset at 8:47 pm EDT.
Sunshine
In May, the average sunshine in Mount Cumberland is 10h.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 health risk from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum UV index of 6 in May translates into the following recommendations:
Ward off overexposure. Defence against solar harm is crucial. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Mount Cumberland, TN
- Average high temperature in May: 77.9°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (46°F).
- Average low temperature in May: 56.5°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in May
Mount Cumberland, TN
- Average pressure in May: 30.02"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in May
Mount Cumberland, TN
- Average wind speed in May: 5.2mph
The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest months (with the lowest average wind speed) are July and August (4mph).
Average humidity in May
Mount Cumberland, TN
- Average humidity in May: 76%
The month with the highest relative humidity is December (79%).
The months with the lowest relative humidity are June, July, August, September, October and November (75%).
Average rainfall in May
Mount Cumberland, TN
- Average rainfall in May: 1.3"
The wettest month (with the highest rainfall) is July (2.09").
The driest month (with the least rainfall) is September (0.79").
Average rainfall days in May
Mount Cumberland, TN
- Average rainfall days in May: 11.4 days
The month with the highest number of rainy days is July (13.5 days).
The month with the least rainy days is November (6.7 days).
Average snowfall in May
Mount Cumberland, TN
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.47").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Mount Cumberland, TN
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (2.5 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
Mount Cumberland, TN
- Average daylight in May: 14h and 0min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in May: 10h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are January and December (Average sunshine: 5h and 6min).
Average sunshine days in May
Mount Cumberland, TN
- Average sunshine days in May: 17.6 days
The month with the most sunshine days is October (22.3 days).
The month with the least sunshine days is July (15.3 days).
Average UV index in May
Mount Cumberland, 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
Mount Cumberland, TN
- Average cloud cover in May: 33
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in May
Mount Cumberland, TN
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).





