December weather forecastScandlyn, TN
December
Weather in December
The first month of the winter, December, is also a frosty month in Scandlyn, Tennessee, with an average temperature ranging between min 34.7°F (1.5°C) and max 48.4°F (9.1°C).Temperature
Scandlyn experiences a moderate temperature shift at the start of December, with average high-temperatures adjusting a bit from a refreshing 56.3°F (13.5°C) in November to a frosty 48.4°F (9.1°C). Scandlyn's nighttime temperature in December falls to an average of 34.7°F (1.5°C).Humidity
December is the most humid month, with an average relative humidity of 80%.Rainfall
In Scandlyn, in December, during 13.6 rainfall days, 2.72" (69mm) of precipitation is typically accumulated. In Scandlyn, during the entire year, the rain falls for 171.2 days and collects up to 32.4" (823mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Scandlyn, during December, snow falls for 3.5 days and regularly aggregates up to 0.59" (15mm) of snow. In Scandlyn, during the entire year, snow falls for 17.2 days and aggregates up to 3.31" (84mm) of snow.Daylight
With an average of 9h and 48min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:30 am and sunset at 5:23 pm. On the last day of the month, sunrise is at 7:47 am and sunset at 5:33 pm EST.
Sunshine
The average sunshine in December is 5h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: In December, the maximum UV index of 2 transforms into these recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Scandlyn, TN
- Average high temperature in December: 48.4°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (43.9°F).
- Average low temperature in December: 34.7°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (29.1°F).
Average pressure in December
Scandlyn, 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 (29.98"Hg).
Average wind speed in December
Scandlyn, TN
- Average wind speed in December: 5.2mph
The windiest month (with the highest average wind speed) is April (6.1mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in December
Scandlyn, TN
- Average humidity in December: 80%
The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are June, July and August (75%).
Average rainfall in December
Scandlyn, TN
- Average rainfall in December: 2.72"
The wettest month (with the highest rainfall) is February (3.9").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in December
Scandlyn, TN
- Average rainfall days in December: 13.6 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in December
Scandlyn, TN
- Average snowfall in December: 0.59"
The month with the highest snowfall is February (1.26").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Scandlyn, TN
- Average snowfall days in December: 3.5 days
The month with the highest number of snowfall days is January (5.3 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
Scandlyn, TN
- Average daylight in December: 9h and 48min
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 48min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in December
Scandlyn, TN
- Average sunshine days in December: 15.2 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (10.7 days).
Average UV index in December
Scandlyn, 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 January, February and December (UV index 2).
Average cloud cover in December
Scandlyn, TN
- Average cloud cover in December: 50
The month with the most cloud cover is February (Cloud cover 54).
The months with the least cloud cover are June and August (Cloud cover 30).
Average visibility in December
Scandlyn, TN
- Average visibility in December: 5mi
The months with the highest visibility are April, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, May and December (5mi).
