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
In Allen, the average high-temperature in December gently drops from a moderate 57.6°F (14.2°C) in November to a cool 50°F (10°C). Allen experiences an average temperature drop to an icy 35.8°F (2.1°C) during December nights.Humidity
The most humid month in Allen, Tennessee, is December, with an average relative humidity of 80%.Rainfall
The months with the most rainfall in Allen, Tennessee, are July and December, with an average 4.29" (109mm) of precipitation.Snowfall
Months with snowfall in Allen are January through April, November and December. In Allen, in December, during 2.2 snowfall days, 0.55" (14mm) of snow is typically accumulated. In Allen, during the entire year, snow falls for 14.8 days and aggregates up to 3.07" (78mm) of snow.Daylight
With an average of 9h and 48min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:30 am and sunset at 5:26 pm. On the last day of December, in Allen, sunrise is at 7:48 am and sunset at 5:37 pm EST.
Sunshine
December has the least sunshine of the year in Allen, with an average of 5h of sunshine.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 value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In December, the average maximum UV index of 2 translates into the following recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Around midday, solar radiation is most harmful; hence, exposure should be limited. Experience reduced UV exposure by about half when donning a wide-brim hat. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Frequently asked questions
What is the temperature in December in Allen?
What is the most humid month in Allen?
What is the average humidity in December in Allen?
What is the rainiest month in Allen?
How much does it rain in Allen in December?
How many days does it snow in December in Allen?
What is the month with the shortest days in Allen?
What is the average length of the day in December in Allen?
When is the sunrise / sunset in December in Allen?
What is the month with the least sunshine in Allen?
How many hours of sunshine does Allen have in December?
What are the months with the lowest UV index in Allen?
What is the UV index intensity in December in Allen?
Average temperature in December
Allen, TN
- Average high temperature in December: 50°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (45.5°F).
- Average low temperature in December: 35.8°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in December
Allen, 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
Allen, TN
- Average wind speed in December: 5.8mph
The windiest months (with the highest average wind speed) are February, March and April (6.5mph).
The calmest months (with the lowest average wind speed) are July and August (3.9mph).
Average humidity in December
Allen, 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, August, October and November (75%).
Average rainfall in December
Allen, TN
- Average rainfall in December: 4.29"
The wettest months (with the highest rainfall) are July and December (4.29").
The driest month (with the least rainfall) is September (2.32").
Average rainfall days in December
Allen, TN
- Average rainfall days in December: 13.6 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is November (9.5 days).
Average snowfall in December
Allen, TN
- Average snowfall in December: 0.55"
The month with the highest snowfall is January (1.02").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Allen, TN
- Average snowfall days in December: 2.2 days
The month with the highest number of snowfall days is January (4.8 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
Allen, 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: 5h and 0min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in December
Allen, TN
- Average sunshine days in December: 15.7 days
The month with the most sunshine days is October (18.6 days).
The month with the least sunshine days is July (10.2 days).
Average UV index in December
Allen, 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
Allen, 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 30).
Average visibility in December
Allen, TN
- Average visibility in December: 6mi
The months with the highest visibility are February, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and March (5mi).
Allen, Tennessee, USA
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