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 reveals a small adjustment in temperature, transitioning from an average high of a fresh 54.5°F (12.5°C) in November to a frosty 46.9°F (8.3°C). During December, Jonesborough witnesses a consistent average low-temperature of 32.5°F (0.3°C).Humidity
The months with the highest humidity in Jonesborough are February and December, with an average relative humidity of 79%.Rainfall
In Jonesborough, in December, it is raining for 12.7 days, with typically 3.07" (78mm) of accumulated precipitation. Throughout the year, in Jonesborough, there are 175.9 rainfall days, and 31.93" (811mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall in Jonesborough. December is the month with the most snowfall. Snow falls for 5.9 days and accumulates 3.74" (95mm) of snow.Daylight
The month with the shortest days in Jonesborough is December, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 7:23 am and sunset at 5:15 pm. On the last day of December, in Jonesborough, sunrise is at 7:41 am and sunset at 5:25 pm EST.
Sunshine
The average sunshine in December is 5.4h.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 reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: The average daily UV index of 2 in December transforms into the following instructions:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Opt for tightly woven and loose clothing to enhance protection from the Sun. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Frequently asked questions
What are December temperatures in Jonesborough?
What is the most humid month in Jonesborough?
What is the average humidity in December in Jonesborough?
How many days does it rain in December in Jonesborough?
When does it snow the most in Jonesborough?
How much does it snow in Jonesborough in December?
What is the month with the shortest days in Jonesborough?
What is the average length of the day in December in Jonesborough?
What time are sunrise and sunset in December in Jonesborough?
How many hours of sunshine does Jonesborough have in December?
What are the months with the lowest UV index in Jonesborough?
How high is the UV index in December in Jonesborough?
Average temperature in December
Jonesborough, TN
- Average high temperature in December: 46.9°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (41.7°F).
- Average low temperature in December: 32.5°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (26.6°F).
Average pressure in December
Jonesborough, TN
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in December
Jonesborough, TN
- Average wind speed in December: 5.7mph
The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in December
Jonesborough, TN
- Average humidity in December: 79%
The months with the highest relative humidity are February and December (79%).
The month with the lowest relative humidity is November (75%).
Average rainfall in December
Jonesborough, TN
- Average rainfall in December: 3.07"
The wettest month (with the highest rainfall) is February (3.39").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in December
Jonesborough, TN
- Average rainfall days in December: 12.7 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is November (10.3 days).
Average snowfall in December
Jonesborough, TN
- Average snowfall in December: 3.74"
The month with the highest snowfall is December (3.74").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Jonesborough, TN
- Average snowfall days in December: 5.9 days
The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Jonesborough, 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: 5h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in December
Jonesborough, TN
- Average sunshine days in December: 13.7 days
The month with the most sunshine days is October (17.7 days).
The month with the least sunshine days is February (9.3 days).
Average UV index in December
Jonesborough, TN
- Average UV index in December: 2
The months with the highest UV index are 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
Jonesborough, 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 August (Cloud cover 30).
Average visibility in December
Jonesborough, TN
- Average visibility in December: 5mi
The months with the highest visibility are April, June, July, August, October and November (6mi).
The months with the lowest visibility are January, February, March, May, September and December (5mi).
Jonesborough, Tennessee, USA
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