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 56.3°F (13.5°C) in November to a chilly 47.5°F (8.6°C). Hartsville Junction observes an average nighttime low-temperature of 34.7°F (1.5°C) during the month of December.Humidity
February, March, May, July and December, with an average relative humidity of 79%, are the most humid months.Rainfall
In Hartsville Junction, in December, during 12.8 rainfall days, 2.99" (76mm) of precipitation is typically accumulated. Throughout the year, in Hartsville Junction, there are 176.5 rainfall days, and 41.22" (1047mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In Hartsville Junction, in December, snow falls for 3.5 days, with typically accumulated 0.87" (22mm) of snow. In Hartsville Junction, during the entire year, snow falls for 17.5 days and aggregates up to 5" (127mm) of snow.Daylight
The month with the shortest days in Hartsville Junction, Tennessee, is December, with an average of 9h and 42min of daylight.On the first day of December in Hartsville Junction, sunrise is at 6:39 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 4:40 pm CST.
Sunshine
In Hartsville Junction, the average sunshine in December is 4.4h.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 of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 2 during December translates into the following directions:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Frequently asked questions
What are December temperatures in Hartsville Junction?
What is the most humid month in Hartsville Junction?
What is the average humidity in December in Hartsville Junction?
How much does it rain in Hartsville Junction in December?
How much does it snow in Hartsville Junction in December?
What is the month with the shortest days in Hartsville Junction?
How many hours of daylight does Hartsville Junction have in December?
When are sunrise and sunset in December in Hartsville Junction?
How long on average sun shines in December in Hartsville Junction?
What are the months with the lowest UV index in Hartsville Junction?
How high is the UV index in December in Hartsville Junction?
Average temperature in December
Hartsville Junction, TN
- Average high temperature in December: 47.5°F
The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (42.8°F).
- Average low temperature in December: 34.7°F
The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (28.9°F).
Average pressure in December
Hartsville Junction, 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
Hartsville Junction, TN
- Average wind speed in December: 7.4mph
The windiest month (with the highest average wind speed) is February (8.2mph).
The calmest month (with the lowest average wind speed) is July (4.6mph).
Average humidity in December
Hartsville Junction, TN
- Average humidity in December: 79%
The months with the highest relative humidity are February, March, May, July and December (79%).
The month with the lowest relative humidity is October (75%).
Average rainfall in December
Hartsville Junction, TN
- Average rainfall in December: 2.99"
The wettest month (with the highest rainfall) is July (5.2").
The driest month (with the least rainfall) is November (2.28").
Average rainfall days in December
Hartsville Junction, TN
- Average rainfall days in December: 12.8 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is November (10.3 days).
Average snowfall in December
Hartsville Junction, TN
- Average snowfall in December: 0.87"
The month with the highest snowfall is February (1.54").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Hartsville Junction, TN
- Average snowfall days in December: 3.5 days
The month with the highest number of snowfall days is January (5.2 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
Hartsville Junction, 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 2min
The months with the most sunshine are June and August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in December
Hartsville Junction, TN
- Average sunshine days in December: 14.9 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is July (9.8 days).
Average UV index in December
Hartsville Junction, 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
Hartsville Junction, TN
- Average cloud cover in December: 54
The month with the most cloud cover is February (Cloud cover 56).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in December
Hartsville Junction, TN
- Average visibility in December: 6mi
The months with the highest visibility are February, April, June, September, October, November and December (6mi).
The months with the lowest visibility are January, March, May, July and August (5mi).
Hartsville Junction, Tennessee, USA
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