December weather forecastOld Zion, TN
December
Weather in December
December, the first month of the winter in Old Zion, is still a chilly month, with an average temperature fluctuating between 34.7°F (1.5°C) and 48.6°F (9.2°C).Temperature
The arrival of December corresponds with a minor reduction in the average high-temperature, down from November's moderate 56.3°F (13.5°C) to a chilly 48.6°F (9.2°C). December brings with it a nighttime average temperature of 34.7°F (1.5°C).Humidity
With an average relative humidity of 80%, December is the most humid month.Rainfall
In December, the rain falls for 12.8 days. Throughout December, 2.68" (68mm) of precipitation is accumulated. Throughout the year, in Old Zion, there are 168.8 rainfall days, and 34.06" (865mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall in Old Zion. In December, in Old Zion, it is snowing for 4.1 days. Throughout December, 1.1" (28mm) of snow is accumulated. Throughout the year, there are 19.9 snowfall days, and 4.92" (125mm) of snow is accumulated.Daylight
The month with the shortest days in Old Zion, Tennessee, is December, with an average of 9h and 48min of daylight.On the first day of the month, sunrise is at 6:34 am and sunset at 4:28 pm. On the last day of December, sunrise is at 6:52 am and sunset at 4:38 pm CST.
Sunshine
The average sunshine in December is 4.7h.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 vulnerability from exposure to the Sun's UV rays for average individuals.Note: A maximum daily UV index of 2 during December morphs into the following directions:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Old Zion, TN
- Average high temperature in December: 48.6°F
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (43.7°F).
- Average low temperature in December: 34.7°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).
Average pressure in December
Old Zion, 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 (29.97"Hg).
Average wind speed in December
Old Zion, TN
- Average wind speed in December: 6.8mph
The windiest month (with the highest average wind speed) is February (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.3mph).
Average humidity in December
Old Zion, TN
- Average humidity in December: 80%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is November (75%).
Average rainfall in December
Old Zion, TN
- Average rainfall in December: 2.68"
The wettest month (with the highest rainfall) is February (3.82").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in December
Old Zion, TN
- Average rainfall days in December: 12.8 days
The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is November (9.6 days).
Average snowfall in December
Old Zion, TN
- Average snowfall in December: 1.1"
The month with the highest snowfall is February (1.69").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Old Zion, TN
- Average snowfall days in December: 4.1 days
The month with the highest number of snowfall days is January (5.9 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
Old Zion, TN
- Average daylight in December: 9h and 48min
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 48min).
- Average sunshine in December: 4h and 42min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in December
Old Zion, TN
- Average sunshine days in December: 15.1 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is July (10.4 days).
Average UV index in December
Old Zion, 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
Old Zion, TN
- Average cloud cover in December: 51
The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in December
Old Zion, TN
- Average visibility in December: 6mi
The months with the highest visibility are February, April, June, October, November and December (6mi).
The months with the lowest visibility are January, March, May, July, August and September (5mi).
