December weather forecastRock House, TN
December
Weather in December
The first month of the winter, December, is also a frosty month in Rock House, Tennessee, with an average temperature varying between 35.1°F (1.7°C) and 47.8°F (8.8°C).Temperature
December implies a soft temperature shift, with average high-temperatures reducing from November's refreshing 56.3°F (13.5°C) to a frosty 47.8°F (8.8°C). December nights are marked by an average temperature drop to an icy 35.1°F (1.7°C).Humidity
The months with the highest humidity in Rock House are February, March, May and December, with an average relative humidity of 79%.Rainfall
In Rock House, Tennessee, in December, it is raining for 13.4 days, with typically 2.83" (72mm) of accumulated precipitation. In Rock House, during the entire year, the rain falls for 178.1 days and collects up to 37.99" (965mm) of precipitation.Snowfall
Months with snowfall in Rock House are January through April, October through December. In Rock House, in December, snow falls for 3.1 days, with typically accumulated 0.59" (15mm) of snow. Throughout the year, there are 17.2 snowfall days, and 4.25" (108mm) of snow is accumulated.Daylight
With an average of 9h and 42min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 6:37 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 4:39 pm CST.
Sunshine
In Rock House, the average sunshine in December is 4.5h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: In December, the maximum UV index of 2 transforms into these recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Rock House, TN
- Average high temperature in December: 47.8°F
The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (43.7°F).
- Average low temperature in December: 35.1°F
The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).
Average pressure in December
Rock House, TN
- Average pressure in December: 30.14"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
Rock House, TN
- Average wind speed in December: 7.1mph
The windiest month (with the highest average wind speed) is February (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in December
Rock House, TN
- Average humidity in December: 79%
The months with the highest relative humidity are February, March, May and December (79%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in December
Rock House, TN
- Average rainfall in December: 2.83"
The wettest month (with the highest rainfall) is July (4.53").
The driest month (with the least rainfall) is September (2.05").
Average rainfall days in December
Rock House, TN
- Average rainfall days in December: 13.4 days
The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is November (9.7 days).
Average snowfall in December
Rock House, TN
- Average snowfall in December: 0.59"
The month with the highest snowfall is January (1.38").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Rock House, TN
- Average snowfall days in December: 3.1 days
The month with the highest number of snowfall days is January (5.4 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
Rock House, TN
- Average daylight in December: 9h and 42min
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: 4h and 30min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in December
Rock House, TN
- Average sunshine days in December: 14.8 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in December
Rock House, 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
Rock House, TN
- Average cloud cover in December: 53
The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in December
Rock House, TN
- Average visibility in December: 6mi
The months with the highest visibility are February, April, June, September, October, November and December (6mi).
The months with the lowest visibility are January, March, May, July and August (5mi).
