May weather forecastHearndale, TN
May
Weather in May
May, the last month of the spring in Hearndale, is a warm month, with temperature in the range of an average low of 59°F (15°C) and an average high of 77.5°F (25.3°C).Temperature
An increase in the average high-temperature marks May, moving from April's pleasant 68.4°F (20.2°C) to a warm 77.5°F (25.3°C). Throughout May, Hearndale anticipates an average low-temperature of 59°F (15°C).Humidity
In Hearndale, the average relative humidity in May is 79%.Rainfall
In May, the rain falls for 16.6 days. Throughout May, 3.78" (96mm) of precipitation is accumulated. In Hearndale, Tennessee, during the entire year, the rain falls for 165.6 days and collects up to 37.64" (956mm) of precipitation.Snowfall
In Hearndale, snow does not fall in April through October.Daylight
In Hearndale, the average length of the day in May is 14h and 7min.On the first day of May, sunrise is at 5:59 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:05 pm CDT.
Sunshine
In Hearndale, the average sunshine in May is 9.4h.UV index
In May, the average daily maximum UV index in Hearndale is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In May, a regular UV index of 6 translates into these guidelines:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Hearndale, TN
- Average high temperature in May: 77.5°F
The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (43.5°F).
- Average low temperature in May: 59°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).
Average pressure in May
Hearndale, TN
- Average pressure in May: 29.99"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in May
Hearndale, TN
- Average wind speed in May: 6.9mph
The windiest months (with the highest average wind speed) are January, February and April (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in May
Hearndale, TN
- Average humidity in May: 79%
The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is October (72%).
Average rainfall in May
Hearndale, TN
- Average rainfall in May: 3.78"
The wettest month (with the highest rainfall) is February (4.17").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in May
Hearndale, TN
- Average rainfall days in May: 16.6 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is November (10.3 days).
Average snowfall in May
Hearndale, TN
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.22").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Hearndale, TN
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (4.1 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
Hearndale, 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 24min
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 36min).
Average sunshine days in May
Hearndale, TN
- Average sunshine days in May: 12.8 days
The month with the most sunshine days is October (19.3 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in May
Hearndale, TN
- Average UV index in May: 6
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in May
Hearndale, TN
- Average cloud cover in May: 37
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June and September (Cloud cover 28).
Average visibility in May
Hearndale, 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).





