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 start of December in Morristown involves a subtle temperature drop, shifting from a mild 56.1°F (13.4°C) in November to a chilly 48.2°F (9°C). Morristown experiences an average low-temperature reading of 34°F (1.1°C) throughout December.Humidity
The months with the highest humidity in Morristown are February and December, with an average relative humidity of 79%.Rainfall
In Morristown, in December, during 13.8 rainfall days, 3.23" (82mm) of precipitation is typically accumulated. In Morristown, during the entire year, the rain falls for 172.1 days and collects up to 31.02" (788mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. December is the month with the most snowfall in Morristown. Snow falls for 5.5 days and accumulates 2.83" (72mm) of snow.Daylight
With an average of 9h and 42min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:26 am and sunset at 5:18 pm. On the last day of December, sunrise is at 7:44 am and sunset at 5:28 pm EST.
Sunshine
In December, the average sunshine is 5.4h.UV index
The months with the lowest UV index in Morristown are January, February and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 2 suggests this advice:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Morristown in December?
What are the most humid months in Morristown?
What is the average humidity in December in Morristown?
How many days does it rain in December in Morristown?
When does it snow the most in Morristown?
How many days does it snow in December in Morristown?
What is the month with the shortest days in Morristown?
How many hours of daylight does Morristown have in December?
What time are sunrise and sunset in December in Morristown?
How long on average sun shines in December in Morristown?
What is the month with the lowest UV index in Morristown?
What is the UV index reading in December in Morristown?
Average temperature in December
Morristown, TN
- Average high temperature in December: 48.2°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (43.2°F).
- Average low temperature in December: 34°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (28.2°F).
Average pressure in December
Morristown, TN
- Average pressure in December: 30.14"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in December
Morristown, TN
- Average wind speed in December: 5.3mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in December
Morristown, 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 August (73%).
Average rainfall in December
Morristown, TN
- Average rainfall in December: 3.23"
The wettest month (with the highest rainfall) is February (3.66").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in December
Morristown, TN
- Average rainfall days in December: 13.8 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is November (10.6 days).
Average snowfall in December
Morristown, TN
- Average snowfall in December: 2.83"
The month with the highest snowfall is December (2.83").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Morristown, TN
- Average snowfall days in December: 5.5 days
The month with the highest number of snowfall days is January (8.3 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
Morristown, 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 months with the most sunshine are June and July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in December
Morristown, TN
- Average sunshine days in December: 14.1 days
The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is February (10.3 days).
Average UV index in December
Morristown, 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
Morristown, TN
- Average cloud cover in December: 46
The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are June and August (Cloud cover 27).
Average visibility in December
Morristown, TN
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Morristown, Tennessee, USA
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