Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The commencement of December includes a gentle temperature shift, with the average high-temperature dropping a bit from a refreshing 56.5°F (13.6°C) in November to a chilly 47.8°F (8.8°C). Hearndale, in the month of December, anticipates a consistent average low-temperature of 35.6°F (2°C).Humidity
In Hearndale, the average relative humidity in December is 79%.Rainfall
In December, in Hearndale, the rain falls for 12.5 days. Throughout December, 3.43" (87mm) of precipitation is accumulated. In Hearndale, during the entire year, the rain falls for 165.6 days and collects up to 37.64" (956mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in Hearndale, Tennessee. In Hearndale, Tennessee, in December, snow falls for 1.5 days, with typically accumulated 0.71" (18mm) of snow. Throughout the year, there are 10.5 snowfall days, and 4.06" (103mm) of snow is accumulated.Daylight
With an average of 9h and 42min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:47 am and sunset at 4:39 pm. On the last day of December, sunrise is at 7:04 am and sunset at 4:49 pm CST.
Sunshine
In Hearndale, the average sunshine in December is 4.8h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.Note: The daily high UV index of 2 in December translates into this advice:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December in Hearndale?
What is the average humidity in December in Hearndale?
How many days does it rain in December in Hearndale?
How many days does it snow in December in Hearndale?
What is the month with the shortest days in Hearndale?
What is the average length of the day in December in Hearndale?
When are sunrise and sunset in December in Hearndale?
How many hours of sunshine does Hearndale have in December?
What is the month with the lowest UV index in Hearndale?
What is the UV index reading in December in Hearndale?
Average temperature in December
Hearndale, TN
- Average high temperature in December: 47.8°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 December: 35.6°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 December
Hearndale, TN
- Average pressure in December: 30.14"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 December
Hearndale, TN
- Average wind speed in December: 8.1mph
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 December
Hearndale, TN
- Average humidity in December: 79%
The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Hearndale, TN
- Average rainfall in December: 3.43"
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 December
Hearndale, TN
- Average rainfall days in December: 12.5 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 December
Hearndale, TN
- Average snowfall in December: 0.71"
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 December
Hearndale, TN
- Average snowfall days in December: 1.5 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 December /
Average sunshine in December
Hearndale, TN
- Average daylight in December: 9h and 4min
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 December: 4h and 5min
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 December
Hearndale, TN
- Average sunshine days in December: 16.2 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 December
Hearndale, TN
- Average UV index in December: 2
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 December
Hearndale, TN
- Average cloud cover in December: 49
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 December
Hearndale, TN
- Average visibility in December: 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).
Hearndale, Tennessee, USA
Weather forecast for your location
2. Allow the app to use your location