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
December's arrival comes with a mild decrease in the average high-temperature, moving subtly from a moderate 56.7°F (13.7°C) in November to a chilly 48°F (8.9°C). In Lillamay, the expected average low-temperature for December is a cold 35.4°F (1.9°C).Humidity
In December, the average relative humidity is 78%.Rainfall
In Lillamay, during December, the rain falls for 13.1 days and regularly aggregates up to 3.27" (83mm) of precipitation. In Lillamay, during the entire year, the rain falls for 177.6 days and collects up to 40.24" (1022mm) of precipitation.Snowfall
Months with snowfall in Lillamay are January through April, November and December. In Lillamay, during December, snow falls for 1.8 days and regularly aggregates up to 0.75" (19mm) of snow. Throughout the year, in Lillamay, there are 11.2 snowfall days, and 3.86" (98mm) of snow is accumulated.Daylight
The month with the shortest days in Lillamay is December, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 6:41 am and sunset at 4:33 pm. On the last day of December, sunrise is at 6:59 am and sunset at 4:43 pm CST.
Sunshine
In December, the average sunshine is 4.7h.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 low threat to health from exposure to the Sun's UV rays for the average person.Note: The UV index of 2 during December translates into the following guidance:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Lillamay in December?
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?
How many hours of daylight does Lillamay have in December?
When is the sunrise / sunset in December in Lillamay?
How many hours of sunshine does Lillamay have in December?
What are the months with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Lillamay, TN
- Average high temperature in December: 48°F
The warmest month (with the highest average high temperature) is July (87.8°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 (68.5°F).
The coldest month (with the lowest average low temperature) is January (30°F).
Average pressure in December
Lillamay, TN
- Average pressure in December: 30.14"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
Lillamay, TN
- Average wind speed in December: 7.6mph
The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in December
Lillamay, TN
- Average humidity in December: 78%
The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Lillamay, TN
- Average rainfall in December: 3.27"
The wettest month (with the highest rainfall) is July (4.33").
The driest months (with the least rainfall) are September and November (2.44").
Average rainfall days in December
Lillamay, TN
- Average rainfall days in December: 13.1 days
The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is November (9.9 days).
Average snowfall in December
Lillamay, TN
- Average snowfall in December: 0.75"
The month with the highest snowfall is February (1.02").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Lillamay, TN
- Average snowfall days in December: 1.8 days
The month with the highest number of snowfall days is February (3.6 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
Lillamay, 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
Lillamay, TN
- Average sunshine days in December: 16.1 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is July (9.8 days).
Average UV index in December
Lillamay, 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
Lillamay, 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
Lillamay, TN
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Lillamay, Tennessee, USA
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