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
A mild drop in Ruby Falls's average high-temperature is observed in December, transitioning from a refreshing 57.6°F (14.2°C) in November to a fresh 50.2°F (10.1°C). An average low-temperature of 36.3°F (2.4°C) marks the nights in Ruby Falls throughout December.Humidity
December is the most humid month in Ruby Falls, with an average relative humidity of 80%.Rainfall
The month with the most rainfall is December, when the rain falls for 13.7 days and typically aggregates up to 4.37" (111mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Ruby Falls, in December, during 2.2 snowfall days, 0.59" (15mm) of snow is typically accumulated. In Ruby Falls, Tennessee, during the entire year, snow falls for 13.2 days and aggregates up to 4.17" (106mm) 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 the month, sunrise is at 7:31 am and sunset at 5:29 pm. On the last day of December, sunrise is at 7:49 am and sunset at 5:40 pm EST.
Sunshine
The month with the least sunshine is December, with an average of 4.9h of sunshine.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index in Ruby Falls. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for average individuals.Note: In December, the maximum UV index of 2 suggests these recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Frequently asked questions
What is the average December temperature in Ruby Falls?
What is the most humid month in Ruby Falls?
What is the average humidity in December in Ruby Falls?
What is the wettest month in Ruby Falls?
How much does it rain in Ruby Falls in December?
How many days does it snow in December in Ruby Falls?
What is the month with the shortest days in Ruby Falls?
What is the average length of the day in December in Ruby Falls?
What time are sunrise and sunset in December in Ruby Falls?
What is the month with the least sunshine in Ruby Falls?
How long on average sun shines in December in Ruby Falls?
What are the months with the lowest UV index in Ruby Falls?
What is the UV index reading in December in Ruby Falls?
Average temperature in December
Ruby Falls, TN
- Average high temperature in December: 50.2°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (46°F).
- Average low temperature in December: 36.3°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).
Average pressure in December
Ruby Falls, 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
Ruby Falls, TN
- Average wind speed in December: 5.7mph
The windiest month (with the highest average wind speed) is February (6.4mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in December
Ruby Falls, 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, August, October and November (75%).
Average rainfall in December
Ruby Falls, TN
- Average rainfall in December: 4.37"
The wettest month (with the highest rainfall) is December (4.37").
The driest month (with the least rainfall) is September (2.56").
Average rainfall days in December
Ruby Falls, TN
- Average rainfall days in December: 13.7 days
The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is November (9.8 days).
Average snowfall in December
Ruby Falls, TN
- Average snowfall in December: 0.59"
The month with the highest snowfall is February (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Ruby Falls, TN
- Average snowfall days in December: 2.2 days
The month with the highest number of snowfall days is January (4.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Ruby Falls, 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 18min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in December
Ruby Falls, TN
- Average sunshine days in December: 15.1 days
The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is July (9.4 days).
Average UV index in December
Ruby Falls, 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
Ruby Falls, TN
- Average cloud cover in December: 50
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in December
Ruby Falls, TN
- Average visibility in December: 5mi
The months with the highest visibility are June, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, July, August, September and December (5mi).
Ruby Falls, Tennessee, USA
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