Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
May's onset witnesses a shift in the average high-temperature, moving from an agreeable 68.5°F (20.3°C) in April to a warm 77.5°F (25.3°C). Duncan experiences a significant downturn from peak daytime temperatures throughout May, with the average low-temperature dipping to a refreshing 55.4°F (13°C).Humidity
In Duncan, the average relative humidity in May is 75%.Rainfall
In Duncan, in May, during 13.9 rainfall days, 1.38" (35mm) of precipitation is typically accumulated. In Duncan, during the entire year, the rain falls for 148.2 days and collects up to 18.23" (463mm) of precipitation.Snowfall
April through September are months without snowfall in Duncan.Daylight
The average length of the day in May in Duncan, Tennessee, is 14h and 4min.On the first day of May in Duncan, sunrise is at 6:42 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 8:46 pm EDT.
Sunshine
In Duncan, the average sunshine in May is 10.2h.UV index
The months with the highest UV index in Duncan are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 6 during May leads to these instructions:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Frequently asked questions
What is the average May temperature in Duncan?
What is the average humidity in May in Duncan?
How much does it rain in Duncan in May?
When it does not snow in Duncan?
What is the average length of the day in May in Duncan?
When is the sunrise / sunset in May in Duncan?
How long on average sun shines in May in Duncan?
When is the highest UV index in Duncan?
How high is the UV index in May in Duncan?
Average temperature in May
Duncan, TN
- Average high temperature in May: 77.5°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 (44.8°F).
- Average low temperature in May: 55.4°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).
Average pressure in May
Duncan, 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
Duncan, TN
- Average wind speed in May: 4.8mph
The windiest month (with the highest average wind speed) is April (5.9mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).
Average humidity in May
Duncan, TN
- Average humidity in May: 75%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is August (72%).
Average rainfall in May
Duncan, TN
- Average rainfall in May: 1.38"
The wettest month (with the highest rainfall) is July (2.2").
The driest month (with the least rainfall) is September (0.94").
Average rainfall days in May
Duncan, TN
- Average rainfall days in May: 13.9 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is November (8.7 days).
Average snowfall in May
Duncan, TN
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.98").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in May
Duncan, 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
Duncan, TN
- Average daylight in May: 14h and 1min
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 1min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in May
Duncan, TN
- Average sunshine days in May: 12.7 days
The month with the most sunshine days is November (19.3 days).
The months with the least sunshine days are February and July (12.5 days).
Average UV index in May
Duncan, 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
Duncan, TN
- Average cloud cover in May: 33
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in May
Duncan, TN
- Average visibility in May: 6mi
The months with the highest visibility are April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and March (5mi).
Duncan, Tennessee, USA
Weather forecast for your location
2. Allow the app to use your location
