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
With the onset of December, Signal Hills experiences a modest temperature adjustment, with the average high-temperature gently receding from a mild 57.6°F (14.2°C) in November to a fresh 50.2°F (10.1°C). Signal Hills's average low-temperature in the month of December is recorded at a cold 36.1°F (2.3°C).Humidity
With an average relative humidity of 80%, December is the most humid month.Rainfall
The months with the most rainfall are February and December, with an average 1.18" (30mm) of precipitation.Snowfall
January through March and December are months with snowfall in Signal Hills. December is the first month it typically snows. Throughout December, in the average 0.3 snowfall days, it receives 0.04" (1mm) of snow. In Signal Hills, Tennessee, during the entire year, snow falls for 2.9 days and aggregates up to 0.47" (12mm) 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 the month, sunrise is at 7:31 am and sunset at 5:29 pm. On the last day of December, sunrise is at 7:49 am and sunset at 5:39 pm EST.
Sunshine
With an average of 5h of sunshine, December has the least sunshine of the year in Signal Hills.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Signal Hills. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high daily UV index of 2 during December translates into the following directions:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Frequently asked questions
What is the temperature in December in Signal Hills?
What is the most humid month in Signal Hills?
What is the average humidity in December in Signal Hills?
What is the wettest month in Signal Hills?
How much does it rain in Signal Hills in December?
When does it start snowing in Signal Hills?
What is the month with the shortest days in Signal Hills?
How many hours of daylight does Signal Hills have in December?
When is the sunrise / sunset in December in Signal Hills?
What is the month with the least sunshine in Signal Hills?
How long on average sun shines in December in Signal Hills?
What is the month with the lowest UV index in Signal Hills?
What is the UV index reading in December in Signal Hills?
Average temperature in December
Signal Hills, TN
- Average high temperature in December: 50.2°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (46°F).
- Average low temperature in December: 36.1°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).
Average pressure in December
Signal Hills, TN
- Average pressure in December: 30.15"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in December
Signal Hills, TN
- Average wind speed in December: 5.8mph
The windiest month (with the highest average wind speed) is February (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in December
Signal Hills, 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, October and November (75%).
Average rainfall in December
Signal Hills, TN
- Average rainfall in December: 1.18"
The wettest months (with the highest rainfall) are February and December (1.18").
The driest month (with the least rainfall) is September (0.43").
Average rainfall days in December
Signal Hills, TN
- Average rainfall days in December: 8.3 days
The month with the highest number of rainy days is July (11.7 days).
The month with the least rainy days is October (6.1 days).
Average snowfall in December
Signal Hills, TN
- Average snowfall in December: 0.04"
The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Signal Hills, TN
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Signal Hills, 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 0min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in December
Signal Hills, TN
- Average sunshine days in December: 21.3 days
The month with the most sunshine days is October (23.6 days).
The month with the least sunshine days is July (16.8 days).
Average UV index in December
Signal Hills, 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
Signal Hills, TN
- Average cloud cover in December: 49
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in December
Signal Hills, TN
- Average visibility in December: 5mi
The months with the highest visibility are June, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, July, August, September and December (5mi).
Signal Hills, Tennessee, USA
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