December weather forecastMillersville, TN
December
Weather in December
The first month of the winter, December, is still a chilly month in Millersville, Tennessee, with an average temperature fluctuating between 48.2°F (9°C) and 35.4°F (1.9°C).Temperature
As November shifts into December, a minor alteration in temperatures is observed, with average highs reducing from a mild 56.8°F (13.8°C) to a chilly 48.2°F (9°C). An average low-temperature of 35.4°F (1.9°C) is noted during the nights in December in Millersville.Humidity
March and December, with an average relative humidity of 78%, are the most humid months.Rainfall
In December, in Millersville, the rain falls for 13.3 days. Throughout December, 3.07" (78mm) of precipitation is accumulated. Throughout the year, there are 178.6 rainfall days, and 39.29" (998mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In Millersville, during December, snow falls for 1.9 days and regularly aggregates up to 0.43" (11mm) of snow. In Millersville, during the entire year, snow falls for 11.8 days and aggregates up to 3.62" (92mm) of snow.Daylight
December has the shortest days of the year in Millersville, Tennessee, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 6:40 am and sunset at 4:31 pm. On the last day of December, sunrise is at 6:58 am and sunset at 4:42 pm CST.
Sunshine
The months with the least sunshine are January, February and December, with an average of 4.6h of sunshine.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 of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: A daily high UV index of 2 in December leads to these guidelines:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Millersville, TN
- Average high temperature in December: 48.2°F
The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (43.9°F).
- Average low temperature in December: 35.4°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).
Average pressure in December
Millersville, 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 (29.97"Hg).
Average wind speed in December
Millersville, TN
- Average wind speed in December: 7.5mph
The windiest month (with the highest average wind speed) is February (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in December
Millersville, TN
- Average humidity in December: 78%
The months with the highest relative humidity are March and December (78%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Millersville, TN
- Average rainfall in December: 3.07"
The wettest month (with the highest rainfall) is July (4.45").
The driest month (with the least rainfall) is September (2.36").
Average rainfall days in December
Millersville, TN
- Average rainfall days in December: 13.3 days
The month with the highest number of rainy days is July (20 days).
The month with the least rainy days is November (10.4 days).
Average snowfall in December
Millersville, TN
- Average snowfall in December: 0.43"
The month with the highest snowfall is January (1.02").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Millersville, TN
- Average snowfall days in December: 1.9 days
The month with the highest number of snowfall days is January (4.2 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
Millersville, TN
- Average daylight in December: 9h and 42min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 4h and 36min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are January, February and December (Average sunshine: 4h and 36min).
Average sunshine days in December
Millersville, TN
- Average sunshine days in December: 15 days
The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is July (9.2 days).
Average UV index in December
Millersville, 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
Millersville, TN
- Average cloud cover in December: 51
The month with the most cloud cover is February (Cloud cover 53).
The months with the least cloud cover are June and August (Cloud cover 29).
Average visibility in December
Millersville, TN
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





