December weather forecastSeth, TN
December
Weather in December
The first month of the winter, December, is still a chilly month in Seth, Tennessee, with an average temperature ranging between min 36.5°F (2.5°C) and max 49.3°F (9.6°C).Temperature
The arrival of December corresponds with a light shift in temperature, down from a refreshing 57.4°F (14.1°C) in November to a frosty 49.3°F (9.6°C). Seth experiences an average nighttime temperature of 36.5°F (2.5°C) in the month of December.Humidity
The most humid month is December, with an average relative humidity of 80%.Rainfall
In Seth, in December, it is raining for 12.5 days, with typically 3.19" (81mm) of accumulated precipitation. Throughout the year, there are 170.2 rainfall days, and 39.33" (999mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall in Seth. In Seth, Tennessee, during December, snow falls for 1.5 days and regularly aggregates up to 0.55" (14mm) of snow. Throughout the year, in Seth, there are 7.9 snowfall days, and 3.27" (83mm) of snow is accumulated.Daylight
With an average of 9h and 48min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:40 am and sunset at 4:36 pm. On the last day of December, sunrise is at 6:58 am and sunset at 4:46 pm CST.
Sunshine
The months with the least sunshine in Seth are February and December, with an average of 4.5h of sunshine.UV index
The months with the lowest UV index are February and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the UV index of 2 transforms into the following advice:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Seth, TN
- Average high temperature in December: 49.3°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (45.1°F).
- Average low temperature in December: 36.5°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).
Average pressure in December
Seth, TN
- Average pressure in December: 30.15"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in December
Seth, TN
- Average wind speed in December: 7.9mph
The windiest month (with the highest average wind speed) is February (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in December
Seth, TN
- Average humidity in December: 80%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Seth, TN
- Average rainfall in December: 3.19"
The wettest month (with the highest rainfall) is February (4.21").
The driest month (with the least rainfall) is November (2.48").
Average rainfall days in December
Seth, TN
- Average rainfall days in December: 12.5 days
The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is November (9.9 days).
Average snowfall in December
Seth, TN
- Average snowfall in December: 0.55"
The month with the highest snowfall is February (1.02").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Seth, TN
- Average snowfall days in December: 1.5 days
The month with the highest number of snowfall days is February (2.6 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
Seth, TN
- Average daylight in December: 9h and 48min
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 December: 4h and 30min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The months with the least sunshine are February and December (Average sunshine: 4h and 30min).
Average sunshine days in December
Seth, TN
- Average sunshine days in December: 16.3 days
The months with the most sunshine days are October and November (18.9 days).
The month with the least sunshine days is July (10.2 days).
Average UV index in December
Seth, TN
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are February and December (UV index 2).
Average cloud cover in December
Seth, TN
- Average cloud cover in December: 52
The months with the most cloud cover are February and December (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in December
Seth, TN
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, October, November and December (6mi).
The months with the lowest visibility are May, July, August and September (5mi).





