December weather forecastMerrill Corner, ME
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Merrill Corner, Maine, with temperature in the range of an average high of 31.5°F (-0.3°C) and an average low of 20.3°F (-6.5°C).Temperature
The shift from November to December involves a decrease in the average high-temperature, dropping from a frosty 43°F (6.1°C) to a subzero cold 31.5°F (-0.3°C). Merrill Corner temperatures generally rest at a low of 20.3°F (-6.5°C) during the December nights.Humidity
The average relative humidity in December in Merrill Corner is 80%.Rainfall
In Merrill Corner, in December, it is raining for 9.4 days, with typically 2.6" (66mm) of accumulated precipitation. Throughout the year, in Merrill Corner, there are 131.2 rainfall days, and 25.59" (650mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In December, it is snowing for 8.9 days. Throughout December, 6.42" (163mm) of snow is accumulated. In Merrill Corner, during the entire year, snow falls for 49.8 days and aggregates up to 38.19" (970mm) of snow.Daylight
With an average of 9h and 0min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:58 am and sunset at 4:07 pm. On the last day of December, in Merrill Corner, sunrise is at 7:18 am and sunset at 4:16 pm EST.
Sunshine
The average sunshine in December is 4.9h.UV index
The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.Note: The UV index of 2 in December translates into these instructions:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Boost your sun resistance with garments that are densely woven yet spacious. On your guard! Snow's reflection can almost 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
Merrill Corner, ME
- Average high temperature in December: 31.5°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in December: 20.3°F
The month with the highest average low temperature is July (56.5°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure in December
Merrill Corner, ME
- Average pressure in December: 30.03"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Merrill Corner, ME
- Average wind speed in December: 5.2mph
The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in December
Merrill Corner, ME
- Average humidity in December: 80%
The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is November (76%).
Average rainfall in December
Merrill Corner, ME
- Average rainfall in December: 2.6"
The wettest months (with the highest rainfall) are April and October (2.64").
The driest month (with the least rainfall) is September (1.22").
Average rainfall days in December
Merrill Corner, ME
- Average rainfall days in December: 9.4 days
The months with the highest number of rainy days are April and July (14.3 days).
The month with the least rainy days is February (6.3 days).
Average snowfall in December
Merrill Corner, ME
- Average snowfall in December: 6.42"
The month with the highest snowfall is February (9.88").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Merrill Corner, ME
- Average snowfall days in December: 8.9 days
The month with the highest number of snowfall days is February (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Merrill Corner, ME
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 4h and 54min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
Merrill Corner, ME
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is September (18.4 days).
The month with the least sunshine days is April (12.4 days).
Average UV index in December
Merrill Corner, ME
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in December
Merrill Corner, ME
- Average cloud cover in December: 48
The month with the most cloud cover is March (Cloud cover 51).
The months with the least cloud cover are August and September (Cloud cover 36).
Average visibility in December
Merrill Corner, ME
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).
