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
As December begins, there is a minor decrease in the average high-temperature, softly falling from a refreshing 57.9°F (14.4°C) in November to a cool 50.2°F (10.1°C). Sweetwater, in the month of December, anticipates a consistent average low-temperature of 36.1°F (2.3°C).Humidity
The most humid month is December, with an average relative humidity of 79%.Rainfall
In Sweetwater, in December, it is raining for 12.3 days, with typically 3.7" (94mm) of accumulated precipitation. In Sweetwater, during the entire year, the rain falls for 159.4 days and collects up to 35.71" (907mm) of precipitation.Snowfall
January through April, October through December are months with snowfall in Sweetwater, Tennessee. In Sweetwater, in December, snow falls for 2.4 days, with typically accumulated 0.51" (13mm) of snow. In Sweetwater, during the entire year, snow falls for 12.9 days and aggregates up to 3.46" (88mm) of snow.Daylight
With an average of 9h and 48min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:29 am and sunset at 5:24 pm. On the last day of the month, sunrise is at 7:47 am and sunset at 5:35 pm EST.
Sunshine
January and December, with an average of 5.1h of sunshine, are months with the least sunshine.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 2 suggests this advice:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What is the most humid month?
What is the average humidity in December in Sweetwater?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Sweetwater have in December?
When is the sunrise / sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Sweetwater have in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Sweetwater, TN
- Average high temperature in December: 50.2°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (45.7°F).
- Average low temperature in December: 36.1°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in December
Sweetwater, TN
- Average pressure in December: 30.15"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in December
Sweetwater, TN
- Average wind speed in December: 5.8mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest months (with the lowest average wind speed) are July and August (4mph).
Average humidity in December
Sweetwater, TN
- Average humidity in December: 79%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is August (74%).
Average rainfall in December
Sweetwater, TN
- Average rainfall in December: 3.7"
The wettest month (with the highest rainfall) is February (3.9").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in December
Sweetwater, TN
- Average rainfall days in December: 12.3 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is November (8.8 days).
Average snowfall in December
Sweetwater, TN
- Average snowfall in December: 0.51"
The month with the highest snowfall is January (1.1").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Sweetwater, TN
- Average snowfall days in December: 2.4 days
The month with the highest number of snowfall days is January (4.1 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
Sweetwater, TN
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 6min).
Average sunshine days in December
Sweetwater, TN
- Average sunshine days in December: 16.8 days
The month with the most sunshine days is October (19.6 days).
The month with the least sunshine days is July (11.6 days).
Average UV index in December
Sweetwater, 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
Sweetwater, 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
Sweetwater, 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).
Sweetwater, Tennessee, USA
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