December weather forecastHarmony, NC
December
Weather in December
December, the first month of the winter in Harmony, is still a cool month, with an average temperature varying between 50.7°F (10.4°C) and 36.5°F (2.5°C).Temperature
The beginning of December brings a slight decrease in the average high-temperature, transitioning from a refreshing 57.7°F (14.3°C) in November to a cool 50.7°F (10.4°C). During December, Harmony records an average temperature of 36.5°F (2.5°C) at night.Humidity
May and December, with an average relative humidity of 75%, are the most humid months in Harmony.Rainfall
In December, in Harmony, the rain falls for 10.8 days. Throughout December, 3.11" (79mm) of precipitation is accumulated. In Harmony, during the entire year, the rain falls for 157.9 days and collects up to 30.83" (783mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. December is the month with the most snowfall. Snow falls for 0.8 days and accumulates 2.09" (53mm) 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 the month, sunrise is at 7:15 am and sunset at 5:09 pm. On the last day of December, sunrise is at 7:33 am and sunset at 5:19 pm EST.
Sunshine
The month with the least sunshine in Harmony is December, with an average of 5.4h of sunshine.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Harmony, NC
- Average high temperature in December: 50.7°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (46.6°F).
- Average low temperature in December: 36.5°F
The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).
Average pressure in December
Harmony, 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 (29.98"Hg).
Average wind speed in December
Harmony, NC
- Average wind speed in December: 5.8mph
The windiest month (with the highest average wind speed) is April (7.2mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in December
Harmony, NC
- Average humidity in December: 75%
The months with the highest relative humidity are May and December (75%).
The month with the lowest relative humidity is July (69%).
Average rainfall in December
Harmony, NC
- Average rainfall in December: 3.11"
The wettest month (with the highest rainfall) is April (3.39").
The driest month (with the least rainfall) is October (2.01").
Average rainfall days in December
Harmony, NC
- Average rainfall days in December: 10.8 days
The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is November (9.1 days).
Average snowfall in December
Harmony, NC
- Average snowfall in December: 2.09"
The month with the highest snowfall is December (2.09").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Harmony, NC
- Average snowfall days in December: 0.8 days
The month with the highest number of snowfall days is February (2.8 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
Harmony, NC
- Average daylight in December: 9h and 48min
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 48min).
- Average sunshine in December: 5h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in December
Harmony, NC
- Average sunshine days in December: 18.3 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in December
Harmony, 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, February and December (UV index 2).
Average cloud cover in December
Harmony, NC
- Average cloud cover in December: 42
The months with the most cloud cover are February, March and December (Cloud cover 42).
The months with the least cloud cover are June and July (Cloud cover 29).
Average visibility in December
Harmony, NC
- 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).





