December weather forecastSouth Dover, ME
December
Weather in December
The first month of the winter, December, is also a subzero cold month in South Dover, Maine, with an average temperature ranging between max 29.1°F (-1.6°C) and min 18.7°F (-7.4°C).Temperature
The arrival of December signals a shift in temperature, down from an icy 41°F (5°C) in November to a freezing cold 29.1°F (-1.6°C). Throughout December, an average low-temperature of 18.7°F (-7.4°C) is expected.Humidity
The average relative humidity in December is 83%.Rainfall
In South Dover, in December, it is raining for 10.8 days, with typically 3.23" (82mm) of accumulated precipitation. In South Dover, during the entire year, the rain falls for 154.3 days and collects up to 32.68" (830mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In South Dover, in December, during 12.4 snowfall days, 9.06" (230mm) of snow is typically accumulated. In South Dover, Maine, during the entire year, snow falls for 69.5 days and aggregates up to 49.96" (1269mm) of snow.Daylight
With an average of 8h and 48min of daylight, December has the shortest days of the year in South Dover.On the first day of December, sunrise is at 6:55 am and sunset at 3:55 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:04 pm EST.
Sunshine
The average sunshine in December is 4.2h.UV index
The months with the lowest UV index in South Dover are January through March, October through December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: In December, the maximum UV index of 2 suggests this advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Caution! The reflection of snow can nearly 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
South Dover, ME
- Average high temperature in December: 29.1°F
The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is January (23.9°F).
- Average low temperature in December: 18.7°F
The month with the highest average low temperature is July (55.9°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure in December
South Dover, ME
- Average pressure in December: 30.01"Hg
The month with the highest atmospheric pressure is September (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
South Dover, ME
- Average wind speed in December: 6.8mph
The windiest month (with the highest average wind speed) is March (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
South Dover, ME
- Average humidity in December: 83%
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is May (76%).
Average rainfall in December
South Dover, ME
- Average rainfall in December: 3.23"
The wettest month (with the highest rainfall) is April (3.54").
The driest month (with the least rainfall) is July (1.89").
Average rainfall days in December
South Dover, ME
- Average rainfall days in December: 10.8 days
The months with the highest number of rainy days are May and July (16.7 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in December
South Dover, ME
- Average snowfall in December: 9.06"
The month with the highest snowfall is February (11.26").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
South Dover, ME
- Average snowfall days in December: 12.4 days
The month with the highest number of snowfall days is February (15.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
South Dover, ME
- Average daylight in December: 8h and 48min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 4h and 12min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in December
South Dover, ME
- Average sunshine days in December: 13.9 days
The month with the most sunshine days is September (16.4 days).
The month with the least sunshine days is April (10.7 days).
Average UV index in December
South Dover, ME
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
South Dover, ME
- Average cloud cover in December: 54
The month with the most cloud cover is February (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 40).
Average visibility in December
South Dover, ME
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February and March (4mi).
