December weather forecastDecaturville, TN
December
Weather in December
The first month of the winter, December, is also a frosty month in Decaturville, Tennessee, with temperature in the range of an average low of 36.7°F (2.6°C) and an average high of 49.6°F (9.8°C).Temperature
The advent of December brings a subtle shift in temperature, with the average high moving from a mild 57.9°F (14.4°C) in November to a chilly 49.6°F (9.8°C). During the month of December, Decaturville anticipates a mean low-temperature of 36.7°F (2.6°C).Humidity
The months with the highest humidity are March and December, with an average relative humidity of 79%.Rainfall
In Decaturville, in December, it is raining for 9.7 days, with typically 1.38" (35mm) of accumulated precipitation. In Decaturville, during the entire year, the rain falls for 130.6 days and collects up to 16.89" (429mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Decaturville, during December, snow falls for 1.7 days and regularly aggregates up to 0.24" (6mm) of snow. In Decaturville, during the entire year, snow falls for 7.9 days and aggregates up to 1.26" (32mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 48min of daylight.On the first day of December, sunrise is at 6:44 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 4:49 pm CST.
Sunshine
In December, the average sunshine is 4.8h.UV index
December is the month with the lowest UV index in Decaturville, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the average person.Note: A typical high UV index of 2 in December suggests the following recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Decaturville, TN
- Average high temperature in December: 49.6°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (45.5°F).
- Average low temperature in December: 36.7°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (31.6°F).
Average pressure in December
Decaturville, 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 (29.96"Hg).
Average wind speed in December
Decaturville, TN
- Average wind speed in December: 7.6mph
The windiest month (with the highest average wind speed) is February (8.2mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).
Average humidity in December
Decaturville, TN
- Average humidity in December: 79%
The months with the highest relative humidity are March and December (79%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Decaturville, TN
- Average rainfall in December: 1.38"
The wettest month (with the highest rainfall) is February (1.97").
The driest month (with the least rainfall) is September (0.94").
Average rainfall days in December
Decaturville, TN
- Average rainfall days in December: 9.7 days
The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is November (7.7 days).
Average snowfall in December
Decaturville, TN
- Average snowfall in December: 0.24"
The month with the highest snowfall is November (0.35").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Decaturville, TN
- Average snowfall days in December: 1.7 days
The month with the highest number of snowfall days is February (2.3 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
Decaturville, 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: 4h and 48min
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 36min).
Average sunshine days in December
Decaturville, TN
- Average sunshine days in December: 18.7 days
The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is July (12.4 days).
Average UV index in December
Decaturville, TN
- Average UV index in December: 2
The month with the highest UV index is June (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Decaturville, TN
- Average cloud cover in December: 50
The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in December
Decaturville, TN
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, September, October, November and December (6mi).
The months with the lowest visibility are May, July and August (5mi).
