December weather forecastUnity, ME
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Unity, Maine, with temperature in the range of an average low of 20.3°F (-6.5°C) and an average high of 31.3°F (-0.4°C).Temperature
With December's onset, the average high-temperature recedes from November's frosty 43.3°F (6.3°C) to a subzero cold 31.3°F (-0.4°C). Unity experiences an average low-temperature of 20.3°F (-6.5°C) in month of December.Humidity
In Unity, the average relative humidity in December is 82%.Rainfall
The months with the most rainfall are April, October and December, with an average 3.23" (82mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Unity, in December, during 9.9 snowfall days, 6.69" (170mm) of snow is typically accumulated. In Unity, during the entire year, snow falls for 54.8 days and aggregates up to 37.56" (954mm) of snow.Daylight
The month with the shortest days is December, with an average of 8h and 54min of daylight.On the first day of the month, sunrise is at 6:54 am and sunset at 3:58 pm. On the last day of December, sunrise is at 7:14 am and sunset at 4:07 pm EST.
Sunshine
In Unity, the average sunshine in December is 4.4h.UV index
The months with the lowest UV index 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 low threat to health from exposure to the Sun's UV radiation for the average person.Note: In December, an average UV index of 2 transforms into the following instructions:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. When the Sun is at its strongest around midday, find shade and limit exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Unity, ME
- Average high temperature in December: 31.3°F
The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (25.3°F).
- Average low temperature in December: 20.3°F
The month with the highest average low temperature is July (56.7°F).
The coldest month (with the lowest average low temperature) is January (11.8°F).
Average pressure in December
Unity, ME
- Average pressure in December: 30.01"Hg
The months with the highest atmospheric pressure are September and November (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Unity, ME
- Average wind speed in December: 7.5mph
The windiest month (with the highest average wind speed) is March (8.2mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Unity, ME
- Average humidity in December: 82%
The months with the highest relative humidity are February and March (85%).
The months with the lowest relative humidity are April and November (78%).
Average rainfall in December
Unity, ME
- Average rainfall in December: 3.23"
The wettest months (with the highest rainfall) are April, October and December (3.23").
The driest month (with the least rainfall) is July (1.69").
Average rainfall days in December
Unity, ME
- Average rainfall days in December: 9.8 days
The month with the highest number of rainy days is June (16.8 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in December
Unity, ME
- Average snowfall in December: 6.69"
The month with the highest snowfall is January (8.78").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Unity, ME
- Average snowfall days in December: 9.9 days
The month with the highest number of snowfall days is January (12.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Unity, ME
- Average daylight in December: 8h and 54min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 4h and 24min
The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in December
Unity, ME
- Average sunshine days in December: 15.1 days
The month with the most sunshine days is September (17.1 days).
The month with the least sunshine days is April (11.3 days).
Average UV index in December
Unity, 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
Unity, ME
- Average cloud cover in December: 52
The months with the most cloud cover are February, March and April (Cloud cover 55).
The month with the least cloud cover is September (Cloud cover 40).
Average visibility in December
Unity, ME
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (5mi).
The month with the lowest visibility is August (4mi).
