December weather forecastHarris, TN
December
Weather in December
The first month of the winter, December, is still a chilly month in Harris, Tennessee, with an average temperature varying between 47.3°F (8.5°C) and 35.4°F (1.9°C).Temperature
December signifies a gentle decline in Harris's average high-temperature, easing from a refreshing 56.1°F (13.4°C) in November to a chilly 47.3°F (8.5°C). Throughout December, Harris encounters an average temperature drop to an icy 35.4°F (1.9°C).Humidity
The average relative humidity in December is 78%.Rainfall
In December, the rain falls for 12.5 days. Throughout December, 3.27" (83mm) of precipitation is accumulated. In Harris, during the entire year, the rain falls for 163.4 days and collects up to 39.76" (1010mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Harris, in December, snow falls for 1.6 days, with typically accumulated 0.63" (16mm) of snow. In Harris, during the entire year, snow falls for 11.5 days and aggregates up to 5.43" (138mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 6:49 am and sunset at 4:40 pm. On the last day of December, sunrise is at 7:07 am and sunset at 4:50 pm CST.
Sunshine
In Harris, Tennessee, the average sunshine in December is 4.8h.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 unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index, 2 during December, leads to the following recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Harris, TN
- Average high temperature in December: 47.3°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (43.2°F).
- Average low temperature in December: 35.4°F
The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).
Average pressure in December
Harris, 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 (29.95"Hg).
Average wind speed in December
Harris, TN
- Average wind speed in December: 8.6mph
The windiest months (with the highest average wind speed) are January, February, March and April (9.1mph).
The calmest month (with the lowest average wind speed) is July (5.6mph).
Average humidity in December
Harris, TN
- Average humidity in December: 78%
The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Harris, TN
- Average rainfall in December: 3.27"
The wettest month (with the highest rainfall) is April (4.57").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in December
Harris, TN
- Average rainfall days in December: 12.5 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is November (10.1 days).
Average snowfall in December
Harris, TN
- Average snowfall in December: 0.63"
The month with the highest snowfall is February (1.85").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Harris, TN
- Average snowfall days in December: 1.6 days
The month with the highest number of snowfall days is January (3.9 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
Harris, TN
- Average daylight in December: 9h and 42min
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 48min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in December
Harris, TN
- Average sunshine days in December: 16.7 days
The month with the most sunshine days is October (19.4 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in December
Harris, 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
Harris, TN
- Average cloud cover in December: 48
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in December
Harris, 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).
