December weather forecastWatt Heights, TN
December
Weather in December
December, the first month of the winter in Watt Heights, is still a cool month, with an average temperature ranging between min 36.1°F (2.3°C) and max 50.5°F (10.3°C).Temperature
Watt Heights's December weather features a light decline in high-temperatures, reducing from a refreshing 58.1°F (14.5°C) in November to a fresh 50.5°F (10.3°C). Watt Heights, in December, witnesses an average low-temperature of 36.1°F (2.3°C).Humidity
With an average relative humidity of 80%, December is the most humid month.Rainfall
In December, in Watt Heights, the rain falls for 11.4 days. Throughout December, 2.36" (60mm) of precipitation is accumulated. Throughout the year, there are 148 rainfall days, and 23.9" (607mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In Watt Heights, Tennessee, during December, snow falls for 0.7 days and regularly aggregates up to 0.24" (6mm) of snow. Throughout the year, there are 5.2 snowfall days, and 1.77" (45mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 48min of daylight.On the first day of the month, sunrise is at 7:29 am and sunset at 5:26 pm. On the last day of December, sunrise is at 7:47 am and sunset at 5:37 pm EST.
Sunshine
The month with the least sunshine in Watt Heights, Tennessee, is December, with an average of 5.1h of sunshine.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Watt Heights. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for average individuals.Note: The daily high UV index of 2 in December translates into this advice:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Watt Heights, TN
- Average high temperature in December: 50.5°F
The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (46.4°F).
- Average low temperature in December: 36.1°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).
Average pressure in December
Watt Heights, 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
Watt Heights, TN
- Average wind speed in December: 6mph
The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in December
Watt Heights, TN
- Average humidity in December: 80%
The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are June, July, August, September, October and November (75%).
Average rainfall in December
Watt Heights, TN
- Average rainfall in December: 2.36"
The wettest month (with the highest rainfall) is July (2.64").
The driest month (with the least rainfall) is September (1.3").
Average rainfall days in December
Watt Heights, TN
- Average rainfall days in December: 11.4 days
The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is November (7.3 days).
Average snowfall in December
Watt Heights, TN
- Average snowfall in December: 0.24"
The month with the highest snowfall is February (0.75").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Watt Heights, TN
- Average snowfall days in December: 0.7 days
The month with the highest number of snowfall days is February (1.7 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
Watt Heights, TN
- Average daylight in December: 9h and 48min
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 6min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in December
Watt Heights, TN
- Average sunshine days in December: 17.7 days
The months with the most sunshine days are October and November (21.2 days).
The month with the least sunshine days is July (11.6 days).
Average UV index in December
Watt Heights, 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
Watt Heights, TN
- Average cloud cover in December: 47
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in December
Watt Heights, TN
- Average visibility in December: 5mi
The months with the highest visibility are February, March, April, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, May and December (5mi).
