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
The onset of December aligns with a soft reduction in the average high-temperature, gently falling from a refreshing 57.4°F (14.1°C) in November to a chilly 48.9°F (9.4°C). Hillsboro Valley records an average low of 35.8°F (2.1°C) throughout the nights in December.Humidity
With an average relative humidity of 78%, December is the most humid month in Hillsboro Valley.Rainfall
In Hillsboro Valley, in December, it is raining for 11.7 days, with typically 2.56" (65mm) of accumulated precipitation. Throughout the year, there are 166.2 rainfall days, and 33.86" (860mm) of precipitation is accumulated.Snowfall
Months with snowfall in Hillsboro Valley, Tennessee, are January through April, November and December. In Hillsboro Valley, during December, snow falls for 2 days and regularly aggregates up to 0.55" (14mm) of snow. Throughout the year, in Hillsboro Valley, Tennessee, there are 9.7 snowfall days, and 3.15" (80mm) of snow is accumulated.Daylight
With an average of 9h and 48min of daylight, December has the shortest days of the year in Hillsboro Valley.On the first day of December in Hillsboro Valley, sunrise is at 6:40 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 4:43 pm CST.
Sunshine
In Hillsboro Valley, the average sunshine in December is 4.6h.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 minimal health hazard from unsafe exposure to UV radiation for the average person.Note: In December, the UV index of 2 transforms into the following advice:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature in Hillsboro Valley?
What is the most humid month in Hillsboro Valley?
What is the average humidity in December in Hillsboro Valley?
How many days does it rain in December in Hillsboro Valley?
How many days does it snow in December in Hillsboro Valley?
What is the month with the shortest days in Hillsboro Valley?
What is the average length of the day in December in Hillsboro Valley?
When is the sunrise / sunset in December in Hillsboro Valley?
How many hours of sunshine does Hillsboro Valley have in December?
What is the month with the lowest UV index in Hillsboro Valley?
What is the UV index intensity in December in Hillsboro Valley?
Average temperature in December
Hillsboro Valley, TN
- Average high temperature in December: 48.9°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (45°F).
- Average low temperature in December: 35.8°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in December
Hillsboro Valley, TN
- Average pressure in December: 30.15"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in December
Hillsboro Valley, TN
- Average wind speed in December: 7.5mph
The windiest month (with the highest average wind speed) is February (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in December
Hillsboro Valley, TN
- Average humidity in December: 78%
The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are June and October (73%).
Average rainfall in December
Hillsboro Valley, TN
- Average rainfall in December: 2.56"
The wettest month (with the highest rainfall) is July (3.94").
The driest month (with the least rainfall) is November (1.81").
Average rainfall days in December
Hillsboro Valley, TN
- Average rainfall days in December: 11.7 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in December
Hillsboro Valley, TN
- Average snowfall in December: 0.55"
The month with the highest snowfall is March (0.87").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Hillsboro Valley, TN
- Average snowfall days in December: 2 days
The month with the highest number of snowfall days is February (3.2 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
Hillsboro Valley, TN
- Average daylight in December: 9h and 5min
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 48min).
- Average sunshine in December: 4h and 4min
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
Hillsboro Valley, TN
- Average sunshine days in December: 17 days
The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is July (10.3 days).
Average UV index in December
Hillsboro Valley, 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
Hillsboro Valley, TN
- Average cloud cover in December: 52
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in December
Hillsboro Valley, 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).
Hillsboro Valley, Tennessee, USA
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