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
As December begins, there is a minor decrease in the average high-temperature, softly falling from a refreshing 57.4°F (14.1°C) in November to a chilly 49.6°F (9.8°C). Throughout December, the nighttime temperature averages to a wintry 36.1°F (2.3°C).Humidity
The most humid month is December, with an average relative humidity of 80%.Rainfall
In Cortner, in December, during 12.2 rainfall days, 3.23" (82mm) of precipitation is typically accumulated. Throughout the year, there are 171.3 rainfall days, and 35.55" (903mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In December, in Cortner, it is snowing for 2.1 days. Throughout December, 0.59" (15mm) of snow is accumulated. In Cortner, during the entire year, snow falls for 11.2 days and aggregates up to 2.64" (67mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 48min of daylight.On the first day of December, sunrise is at 6:36 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 4:42 pm CST.
Sunshine
In Cortner, the average sunshine in December is 4.8h.UV index
The months with the lowest UV index in Cortner are January and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.Note: In December, a regular UV index of 2 translates into these guidelines:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Frequently asked questions
What is the temperature in December in Cortner?
What is the most humid month in Cortner?
What is the average humidity in December in Cortner?
How much does it rain in Cortner in December?
How many days does it snow in December in Cortner?
What is the month with the shortest days in Cortner?
How many hours of daylight does Cortner have in December?
When are sunrise and sunset in December in Cortner?
How many hours of sunshine does Cortner have in December?
What are the months with the lowest UV index in Cortner?
What is the UV index reading in December in Cortner?
Average temperature in December
Cortner, TN
- Average high temperature in December: 49.6°F
The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (45.1°F).
- Average low temperature in December: 36.1°F
The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (31.1°F).
Average pressure in December
Cortner, 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 (29.98"Hg).
Average wind speed in December
Cortner, TN
- Average wind speed in December: 7.3mph
The windiest month (with the highest average wind speed) is February (8mph).
The calmest month (with the lowest average wind speed) is July (4.5mph).
Average humidity in December
Cortner, TN
- Average humidity in December: 80%
The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in December
Cortner, TN
- Average rainfall in December: 3.23"
The wettest month (with the highest rainfall) is February (4.02").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in December
Cortner, TN
- Average rainfall days in December: 12.2 days
The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in December
Cortner, TN
- Average snowfall in December: 0.59"
The month with the highest snowfall is February (0.91").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Cortner, TN
- Average snowfall days in December: 2.1 days
The months with the highest number of snowfall days are January and February (3.3 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
Cortner, TN
- Average daylight in December: 9h and 5min
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 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 30min).
Average sunshine days in December
Cortner, TN
- Average sunshine days in December: 16.3 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (9.1 days).
Average UV index in December
Cortner, 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 and December (UV index 2).
Average cloud cover in December
Cortner, TN
- Average cloud cover in December: 51
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in December
Cortner, TN
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, September, October, November and December (6mi).
The months with the lowest visibility are May, July and August (5mi).
Cortner, Tennessee, USA
Weather forecast for your location
2. Allow the app to use your location
