December weather forecastWellsville, TN
December
Weather in December
December, the first month of the winter in Wellsville, is still a chilly month, with temperature in the range of an average low of 35.4°F (1.9°C) and an average high of 49.5°F (9.7°C).Temperature
December's arrival signals a moderate reduction in the average high-temperature, easing from a mild 57.2°F (14°C) in November to a chilly 49.5°F (9.7°C). In the month of December, the nighttime temperature dips to a steady average of 35.4°F (1.9°C).Humidity
The most humid month is December, with an average relative humidity of 79%.Rainfall
In Wellsville, during December, the rain falls for 13.6 days and regularly aggregates up to 3.11" (79mm) of precipitation. In Wellsville, during the entire year, the rain falls for 171.1 days and collects up to 32.24" (819mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in Wellsville. In Wellsville, in December, during 2.5 snowfall days, 0.39" (10mm) of snow is typically accumulated. In Wellsville, during the entire year, snow falls for 15 days and aggregates up to 2.52" (64mm) of snow.Daylight
December has the shortest days of the year in Wellsville, with an average of 9h and 48min of daylight.On the first day of December, sunrise is at 7:28 am and sunset at 5:23 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 5:33 pm EST.
Sunshine
In Wellsville, the average sunshine in December is 5.2h.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 low health risk from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 2 during December translates into these guidelines:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. The solar radiation around mid-day is intense; avoid the Sun and stay safe. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Wellsville, TN
- Average high temperature in December: 49.5°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (45°F).
- Average low temperature in December: 35.4°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (30°F).
Average pressure in December
Wellsville, 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 (29.98"Hg).
Average wind speed in December
Wellsville, TN
- Average wind speed in December: 5.4mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in December
Wellsville, TN
- Average humidity in December: 79%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is August (74%).
Average rainfall in December
Wellsville, TN
- Average rainfall in December: 3.11"
The wettest month (with the highest rainfall) is July (3.7").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in December
Wellsville, TN
- Average rainfall days in December: 13.6 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is November (9.6 days).
Average snowfall in December
Wellsville, TN
- Average snowfall in December: 0.39"
The month with the highest snowfall is February (0.91").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Wellsville, TN
- Average snowfall days in December: 2.5 days
The month with the highest number of snowfall days is January (4.7 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
Wellsville, 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 12min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in December
Wellsville, TN
- Average sunshine days in December: 15.2 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (10.5 days).
Average UV index in December
Wellsville, 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
Wellsville, TN
- Average cloud cover in December: 47
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June and August (Cloud cover 28).
Average visibility in December
Wellsville, TN
- Average visibility in December: 6mi
The months with the highest visibility are February, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and March (5mi).
