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 brings a decrease in the average high-temperature, falling from November's moderate 58.1°F (14.5°C) to a frosty 49.1°F (9.5°C). Throughout the month of December, Knoxville expects an average low of 33.8°F (1°C).Humidity
In December, the average relative humidity is 77%.Rainfall
In December, the rain falls for 9.6 days. Throughout December, 2.64" (67mm) of precipitation is accumulated. In Knoxville, during the entire year, the rain falls for 146.9 days and collects up to 36.42" (925mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Knoxville, in December, during 0.2 snowfall days, 0.39" (10mm) of snow is typically accumulated. Throughout the year, there are 4 snowfall days, and 2.72" (69mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 48min of daylight.On the first day of December in Knoxville, sunrise is at 7:04 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:11 pm CST.
Sunshine
In Knoxville, the average sunshine in December is 5.5h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: An average maximum UV index of 2 in December leads to these recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December in Knoxville?
How many hours of sunshine does Knoxville have in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Knoxville, AR
- Average high temperature in December: 49.1°F
The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is January (46.9°F).
- Average low temperature in December: 33.8°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in December
Knoxville, AR
- 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 (29.94"Hg).
Average wind speed in December
Knoxville, AR
- Average wind speed in December: 5.1mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest months (with the lowest average wind speed) are July and August (4.2mph).
Average humidity in December
Knoxville, AR
- Average humidity in December: 77%
The months with the highest relative humidity are March and May (79%).
The months with the lowest relative humidity are July and August (72%).
Average rainfall in December
Knoxville, AR
- Average rainfall in December: 2.64"
The wettest months (with the highest rainfall) are April and May (4.41").
The driest months (with the least rainfall) are July and September (2.36").
Average rainfall days in December
Knoxville, AR
- Average rainfall days in December: 9.6 days
The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is November (9 days).
Average snowfall in December
Knoxville, AR
- Average snowfall in December: 0.39"
The months with the highest snowfall are January and February (0.79").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Knoxville, AR
- Average snowfall days in December: 0.2 days
The months with the highest number of snowfall days are January and February (1.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Knoxville, AR
- 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 3min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 5h and 24min).
Average sunshine days in December
Knoxville, AR
- Average sunshine days in December: 20.1 days
The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is May (13.2 days).
Average UV index in December
Knoxville, AR
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Knoxville, AR
- Average cloud cover in December: 41
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in December
Knoxville, AR
- Average visibility in December: 5mi
The months with the highest visibility are June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April, May, November and December (5mi).
Knoxville, Arkansas, USA
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