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
The average high-temperature shows a slight dip in December, from November's mild 56.7°F (13.7°C) to a chilly 48.2°F (9°C). Cumberland Furnace records an average nighttime low of 35.4°F (1.9°C) in December.Humidity
The months with the highest humidity are March, May and December, with an average relative humidity of 79%.Rainfall
In Cumberland Furnace, in December, during 12.8 rainfall days, 3.07" (78mm) of precipitation is typically accumulated. Throughout the year, there are 173.2 rainfall days, and 38.03" (966mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In Cumberland Furnace, in December, snow falls for 2.4 days, with typically accumulated 0.59" (15mm) of snow. Throughout the year, there are 11.4 snowfall days, and 3.86" (98mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 42min of daylight.On the first day of December, sunrise is at 6:42 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 4:44 pm CST.
Sunshine
In December, the average sunshine is 4.7h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In December, a regular UV index of 2 translates into these guidelines:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What are the most humid months?
What is the average humidity in December?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days in Cumberland Furnace?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Cumberland Furnace, TN
- Average high temperature in December: 48.2°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: 35.4°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (30.4°F).
Average pressure in December
Cumberland Furnace, 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 (29.96"Hg).
Average wind speed in December
Cumberland Furnace, TN
- Average wind speed in December: 7.7mph
The windiest month (with the highest average wind speed) is February (8.4mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in December
Cumberland Furnace, TN
- Average humidity in December: 79%
The months with the highest relative humidity are March, May and December (79%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Cumberland Furnace, TN
- Average rainfall in December: 3.07"
The wettest month (with the highest rainfall) is July (4.21").
The driest month (with the least rainfall) is September (2.28").
Average rainfall days in December
Cumberland Furnace, TN
- Average rainfall days in December: 12.8 days
The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is November (9.9 days).
Average snowfall in December
Cumberland Furnace, TN
- Average snowfall in December: 0.59"
The month with the highest snowfall is March (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Cumberland Furnace, TN
- Average snowfall days in December: 2.4 days
The month with the highest number of snowfall days is January (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
Cumberland Furnace, TN
- Average daylight in December: 9h and 4min
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 4min
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 36min).
Average sunshine days in December
Cumberland Furnace, TN
- Average sunshine days in December: 15.9 days
The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is July (8.9 days).
Average UV index in December
Cumberland Furnace, 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
Cumberland Furnace, TN
- Average cloud cover in December: 51
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in December
Cumberland Furnace, 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).
Cumberland Furnace, Tennessee, USA
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