Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average sea temperature in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Welcoming December, Eastport observes a shift in the average high-temperature, falling from November's frosty 45.1°F (7.3°C) to a wintry 36.1°F (2.3°C). During December, the temperature tends to dip to an average of 26.6°F (-3°C) at night.Humidity
In December, the average relative humidity is 80%.Rainfall
The month with the most rainfall is December, when the rain falls for 11.5 days and typically aggregates up to 3.23" (82mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In December, it is snowing for 8.2 days. Throughout December, 2.17" (55mm) of snow is accumulated. In Eastport, during the entire year, snow falls for 44.2 days and aggregates up to 12.68" (322mm) of snow.Ocean temperature
In December, the average ocean temperature is 45.3°F (7.4°C).Note: Staying in 45.3°F (7.4°C) waters for just a few moments at 55.4°F (13°C) can be harrowing, and below 50°F (10°C) poses breathing and cold shock risks, depending on individual tolerance.
Daylight
December has the shortest days of the year, with an average of 8h and 54min of daylight.On the first day of the month, sunrise is at 6:46 am and sunset at 3:48 pm. On the last day of December, in Eastport, sunrise is at 7:05 am and sunset at 3:56 pm EST.
Sunshine
In December, the average sunshine is 4h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In December, a regular UV index of 1 translates into these guidelines:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
What is the wettest month?
How much does it rain in December?
How much does it snow in December?
What is the water temperature in December?
What is the month with the shortest days?
How many hours of daylight does Eastport have in December?
When are sunrise and sunset in December?
How many hours of sunshine does Eastport have in December?
What is the month with the lowest UV index in Eastport?
What is the UV index reading in December?
Average temperature in December
Eastport, ME
- Average high temperature in December: 36.1°F
The warmest month (with the highest average high temperature) is August (67.8°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in December: 26.6°F
The month with the highest average low temperature is August (59.4°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).
Average pressure in December
Eastport, ME
- Average pressure in December: 29.98"Hg
The month with the highest atmospheric pressure is September (30.03"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Eastport, ME
- Average wind speed in December: 13.6mph
The windiest month (with the highest average wind speed) is January (13.9mph).
The calmest months (with the lowest average wind speed) are July and August (8mph).
Average humidity in December
Eastport, ME
- Average humidity in December: 80%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is November (77%).
Average rainfall in December
Eastport, ME
- Average rainfall in December: 3.23"
The wettest month (with the highest rainfall) is December (3.23").
The driest month (with the least rainfall) is August (1.65").
Average rainfall days in December
Eastport, ME
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is February (7.5 days).
Average snowfall in December
Eastport, ME
- Average snowfall in December: 2.17"
The month with the highest snowfall is January (2.64").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Eastport, ME
- Average snowfall days in December: 8.2 days
The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average sea temperature in December
Eastport, ME
- Average sea temperature in December: 45.3°F
The best month for swimming (with the highest average sea temperature) is September (55.3°F).
The coldest month (with the lowest average sea temperature) is March (38.2°F).
Average daylight in December /
Average sunshine in December
Eastport, ME
- Average daylight in December: 8h and 5min
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 0min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in December
Eastport, ME
- Average sunshine days in December: 12.3 days
The month with the most sunshine days is August (19.4 days).
The month with the least sunshine days is February (10.3 days).
Average UV index in December
Eastport, ME
- Average UV index in December: 1
The months with the highest UV index are July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Eastport, ME
- Average cloud cover in December: 58
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Eastport, ME
- 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).
Eastport, Maine, USA
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