December weather forecastHelenwood, TN
December
Weather in December
The first month of the winter, December, is still a chilly month in Helenwood, Tennessee, with an average temperature varying between 46.2°F (7.9°C) and 32.9°F (0.5°C).Temperature
December is characterized by a mild reduction in the average high-temperature, from a fresh 54.1°F (12.3°C) in November to a chilly 46.2°F (7.9°C). December's average low-temperature reading settles at a cold 32.9°F (0.5°C).Humidity
February and December, with an average relative humidity of 81%, are the most humid months.Rainfall
In Helenwood, in December, it is raining for 12.8 days, with typically 3.54" (90mm) of accumulated precipitation. Throughout the year, there are 174 rainfall days, and 39.69" (1008mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Helenwood, in December, snow falls for 6.3 days, with typically accumulated 2.4" (61mm) of snow. Throughout the year, there are 31.5 snowfall days, and 13.11" (333mm) 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 December, sunrise is at 7:31 am and sunset at 5:23 pm. On the last day of the month, sunrise is at 7:49 am and sunset at 5:33 pm EST.
Sunshine
In December, the average sunshine is 4.4h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Helenwood, TN
- Average high temperature in December: 46.2°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (41.9°F).
- Average low temperature in December: 32.9°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).
Average pressure in December
Helenwood, TN
- Average pressure in December: 30.14"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in December
Helenwood, TN
- Average wind speed in December: 6mph
The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in December
Helenwood, TN
- Average humidity in December: 81%
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is June (77%).
Average rainfall in December
Helenwood, TN
- Average rainfall in December: 3.54"
The wettest month (with the highest rainfall) is February (4.53").
The driest months (with the least rainfall) are September and November (2.56").
Average rainfall days in December
Helenwood, TN
- Average rainfall days in December: 12.8 days
The months with the highest number of rainy days are May and July (18.8 days).
The month with the least rainy days is November (9.9 days).
Average snowfall in December
Helenwood, TN
- Average snowfall in December: 2.4"
The month with the highest snowfall is February (4.76").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Helenwood, TN
- Average snowfall days in December: 6.3 days
The months with the highest number of snowfall days are January and February (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Helenwood, TN
- Average daylight in December: 9h and 42min
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 24min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in December
Helenwood, TN
- Average sunshine days in December: 13.8 days
The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is July (9.8 days).
Average UV index in December
Helenwood, TN
- Average UV index in December: 2
The months with the highest UV index are 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 December
Helenwood, TN
- Average cloud cover in December: 57
The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is June (Cloud cover 35).
Average visibility in December
Helenwood, TN
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
