December weather forecastJacktown, TN
December
Weather in December
December, the first month of the winter in Jacktown, is still a cool month, with an average temperature varying between 36°F (2.2°C) and 50.4°F (10.2°C).Temperature
December signals a slight drop in average high-temperature, sliding from November's mild 57.6°F (14.2°C) to a fresh 50.4°F (10.2°C). Jacktown records a mean low-temperature of 36°F (2.2°C) in December.Humidity
With an average relative humidity of 79%, December is the most humid month.Rainfall
In Jacktown, during December, the rain falls for 13.4 days and regularly aggregates up to 2.99" (76mm) of precipitation. In Jacktown, during the entire year, the rain falls for 170.1 days and collects up to 33.23" (844mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Jacktown, in December, during 2.3 snowfall days, 0.39" (10mm) of snow is typically accumulated. In Jacktown, Tennessee, during the entire year, snow falls for 14.2 days and aggregates up to 2.36" (60mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 48min of daylight.On the first day of December, sunrise is at 7:28 am and sunset at 5:24 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 5:35 pm EST.
Sunshine
January and December, with an average of 5.1h of sunshine, are months with the least sunshine.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: The daily maximum UV index of 2 in December interprets into the following advice:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Jacktown, TN
- Average high temperature in December: 50.4°F
The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (46°F).
- Average low temperature in December: 36°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in December
Jacktown, TN
- Average pressure in December: 30.15"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
Jacktown, TN
- Average wind speed in December: 5.8mph
The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in December
Jacktown, TN
- Average humidity in December: 79%
The month with the highest relative humidity is December (79%).
The months with the lowest relative humidity are August, October and November (75%).
Average rainfall in December
Jacktown, TN
- Average rainfall in December: 2.99"
The wettest month (with the highest rainfall) is July (3.94").
The driest months (with the least rainfall) are September and November (1.89").
Average rainfall days in December
Jacktown, TN
- Average rainfall days in December: 13.4 days
The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is November (9.1 days).
Average snowfall in December
Jacktown, TN
- Average snowfall in December: 0.39"
The month with the highest snowfall is February (0.83").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Jacktown, TN
- Average snowfall days in December: 2.3 days
The month with the highest number of snowfall days is January (4.6 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
Jacktown, 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: 5h and 6min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are January and December (Average sunshine: 5h and 6min).
Average sunshine days in December
Jacktown, TN
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (10.4 days).
Average UV index in December
Jacktown, 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
Jacktown, TN
- Average cloud cover in December: 48
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in December
Jacktown, TN
- Average visibility in December: 5mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
