December weather forecastMooresville, ME
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Mooresville, Maine, with an average temperature varying between 29.5°F (-1.4°C) and 18.9°F (-7.3°C).Temperature
The onset of December coincides with a reduction in the average high-temperature, falling from a cold 41.5°F (5.3°C) in November to a subzero cold 29.5°F (-1.4°C). In the month of December, the nighttime temperature in Mooresville dips to a steady average of 18.9°F (-7.3°C).Humidity
In December, the average relative humidity in Mooresville is 83%.Rainfall
In Mooresville, in December, it is raining for 9.1 days, with typically 2.52" (64mm) of accumulated precipitation. Throughout the year, there are 146.2 rainfall days, and 27.17" (690mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In December, in Mooresville, Maine, it is snowing for 12.1 days. Throughout December, 7.48" (190mm) of snow is accumulated. Throughout the year, there are 65.9 snowfall days, and 37.6" (955mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 8h and 48min of daylight.On the first day of the month, sunrise is at 6:56 am and sunset at 3:54 pm. On the last day of December, in Mooresville, sunrise is at 7:16 am and sunset at 4:03 pm EST.
Sunshine
In Mooresville, the average sunshine in December is 4.2h.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: In December, an average UV index of 2 transforms into the following instructions:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Minimize direct exposure to the Sun during midday when its radiation is at its peak. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mooresville, ME
- Average high temperature in December: 29.5°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (24.3°F).
- Average low temperature in December: 18.9°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (11.1°F).
Average pressure in December
Mooresville, ME
- Average pressure in December: 30"Hg
The months with the highest atmospheric pressure are September and November (30.03"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Mooresville, 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 (5.3mph).
Average humidity in December
Mooresville, 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 (75%).
Average rainfall in December
Mooresville, ME
- Average rainfall in December: 2.52"
The wettest month (with the highest rainfall) is April (2.91").
The driest month (with the least rainfall) is July (1.57").
Average rainfall days in December
Mooresville, ME
- Average rainfall days in December: 9.1 days
The month with the highest number of rainy days is July (16.6 days).
The month with the least rainy days is February (6.9 days).
Average snowfall in December
Mooresville, ME
- Average snowfall in December: 7.48"
The month with the highest snowfall is February (8.35").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Mooresville, ME
- Average snowfall days in December: 12.1 days
The month with the highest number of snowfall days is February (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Mooresville, 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 42min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in December
Mooresville, ME
- Average sunshine days in December: 14 days
The month with the most sunshine days is September (16.5 days).
The month with the least sunshine days is April (10.7 days).
Average UV index in December
Mooresville, 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
Mooresville, ME
- Average cloud cover in December: 55
The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 40).
Average visibility in December
Mooresville, ME
- Average visibility in December: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).
