December weather forecastUnion Mills, NC
December
Weather in December
December, the first month of the winter in Union Mills, is still a cool month, with an average temperature fluctuating between 36°F (2.2°C) and 50.9°F (10.5°C).Temperature
With the arrival of December, Union Mills experiences a modest decline in average high-temperatures, transitioning from a mild 58.5°F (14.7°C) in November to a fresh 50.9°F (10.5°C). An average low-temperature of 36°F (2.2°C) marks the nights throughout December.Humidity
The most humid month in Union Mills is December, with an average relative humidity of 76%.Rainfall
The month with the most rainfall is December, when the rain falls for 11.2 days and typically aggregates up to 3.39" (86mm) of precipitation.Snowfall
Months with snowfall in Union Mills are January through March, November and December. December is the month with the most snowfall. Snow falls for 0.7 days and accumulates 2.52" (64mm) of snow.Daylight
The month with the shortest days in Union Mills is December, with an average of 9h and 48min of daylight.On the first day of the month, sunrise is at 7:19 am and sunset at 5:15 pm. On the last day of December, sunrise is at 7:36 am and sunset at 5:25 pm EST.
Sunshine
December has the least sunshine of the year in Union Mills, with an average of 5.5h of sunshine.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index in Union Mills. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In December, a regular UV index of 2 translates into these guidelines:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. To protect against the Sun's most potent rays, avoid direct exposure around midday. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Union Mills, NC
- Average high temperature in December: 50.9°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 (46.9°F).
- Average low temperature in December: 36°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).
Average pressure in December
Union Mills, NC
- 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
Union Mills, NC
- Average wind speed in December: 5mph
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
Union Mills, NC
- Average humidity in December: 76%
The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (69%).
Average rainfall in December
Union Mills, NC
- Average rainfall in December: 3.39"
The wettest month (with the highest rainfall) is December (3.39").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days in December
Union Mills, NC
- Average rainfall days in December: 11.2 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is November (9.5 days).
Average snowfall in December
Union Mills, NC
- Average snowfall in December: 2.52"
The month with the highest snowfall is December (2.52").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Union Mills, NC
- Average snowfall days in December: 0.7 days
The month with the highest number of snowfall days is February (1.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Union Mills, NC
- 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 30min
The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in December
Union Mills, NC
- Average sunshine days in December: 18.8 days
The month with the most sunshine days is October (20.3 days).
The month with the least sunshine days is July (11.5 days).
Average UV index in December
Union Mills, NC
- 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 and December (UV index 2).
Average cloud cover in December
Union Mills, NC
- Average cloud cover in December: 40
The months with the most cloud cover are February, March and December (Cloud cover 40).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in December
Union Mills, NC
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
