December weather forecastHartford, TN
December
Weather in December
December, the first month of the winter in Hartford, is also a frosty month, with an average temperature varying between 34.3°F (1.3°C) and 49.1°F (9.5°C).Temperature
Transition into December subtly marks a drop in the average high-temperature, moderately moving from a mild 57°F (13.9°C) in November to a chilly 49.1°F (9.5°C). Hartford, in December, experiences an average temperature of 34.3°F (1.3°C) at night.Humidity
The months with the highest humidity are February and December, with an average relative humidity of 78%.Rainfall
In Hartford, in December, during 11.5 rainfall days, 2.64" (67mm) of precipitation is typically accumulated. In Hartford, during the entire year, the rain falls for 155.9 days and collects up to 24.02" (610mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. December is the month with the most snowfall in Hartford. Snow falls for 4.6 days and accumulates 2.48" (63mm) 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 December, sunrise is at 7:24 am and sunset at 5:18 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:29 pm EST.
Sunshine
The average sunshine in December is 5.6h.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 estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: In December, the maximum UV index of 2 transforms into these recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Hartford, TN
- Average high temperature in December: 49.1°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 (44.6°F).
- Average low temperature in December: 34.3°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (28.6°F).
Average pressure in December
Hartford, TN
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in December
Hartford, TN
- Average wind speed in December: 5.2mph
The windiest month (with the highest average wind speed) is April (6.1mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in December
Hartford, TN
- Average humidity in December: 78%
The months with the highest relative humidity are February and December (78%).
The months with the lowest relative humidity are July and August (73%).
Average rainfall in December
Hartford, TN
- Average rainfall in December: 2.64"
The wettest month (with the highest rainfall) is February (2.87").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in December
Hartford, TN
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is November (10 days).
Average snowfall in December
Hartford, TN
- Average snowfall in December: 2.48"
The month with the highest snowfall is December (2.48").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Hartford, TN
- Average snowfall days in December: 4.6 days
The month with the highest number of snowfall days is January (6.6 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
Hartford, 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 36min
The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).
Average sunshine days in December
Hartford, TN
- Average sunshine days in December: 15.9 days
The month with the most sunshine days is October (18.4 days).
The month with the least sunshine days is July (12 days).
Average UV index in December
Hartford, 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
Hartford, TN
- Average cloud cover in December: 43
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 26).
Average visibility in December
Hartford, TN
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
