December weather forecastJohnston Circle, TN
December
Weather in December
December, the first month of the winter in Johnston Circle, is also a fresh month, with an average temperature varying between 50.5°F (10.3°C) and 36.1°F (2.3°C).Temperature
In December, the meteorological conditions change slightly, with the average high-temperature moving from a refreshing 58.1°F (14.5°C) in November to a fresh 50.5°F (10.3°C). The temperature dips to an average of 36.1°F (2.3°C) during December nights.Humidity
December is the most humid month in Johnston Circle, with an average relative humidity of 80%.Rainfall
In Johnston Circle, during December, the rain falls for 11.4 days and regularly aggregates up to 2.36" (60mm) of precipitation. Throughout the year, in Johnston Circle, Tennessee, there are 148 rainfall days, and 23.9" (607mm) of precipitation is accumulated.Snowfall
Months with snowfall in Johnston Circle are January through March, November and December. In December, it is snowing for 0.7 days. Throughout December, 0.24" (6mm) of snow is accumulated. In Johnston Circle, during the entire year, snow falls for 5.2 days and aggregates up to 1.77" (45mm) of snow.Daylight
December has the shortest days of the year in Johnston Circle, Tennessee, with an average of 9h and 48min of daylight.On the first day of the month, sunrise is at 7:30 am and sunset at 5:27 pm. On the last day of December, in Johnston Circle, Tennessee, sunrise is at 7:47 am and sunset at 5:37 pm EST.
Sunshine
With an average of 5.1h of sunshine, December has the least sunshine of the year in Johnston Circle.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 2 during December translates into the following guidance:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Johnston Circle, 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
Johnston Circle, 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
Johnston Circle, 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
Johnston Circle, 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
Johnston Circle, 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
Johnston Circle, 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
Johnston Circle, 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
Johnston Circle, 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
Johnston Circle, 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
Johnston Circle, 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
Johnston Circle, 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
Johnston Circle, 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
Johnston Circle, 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).
