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
In Machiasport, entering December brings a temperature decrement, reducing from November's frosty 45.1°F (7.3°C) to a cold 36.1°F (2.3°C). In Machiasport, the average temperature during the nights of December drops to a freezing cold 26.6°F (-3°C).Humidity
In Machiasport, the average relative humidity in December is 80%.Rainfall
December is the month with the most rainfall. Rain falls for 11.5 days and accumulates 3.23" (82mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Machiasport, in December, snow falls for 8.2 days, with typically accumulated 2.17" (55mm) of snow. In Machiasport, Maine, during the entire year, snow falls for 44.2 days and aggregates up to 12.68" (322mm) of snow.Ocean temperature
In Machiasport, the average seawater temperature in December is 45.9°F (7.7°C).Note: Staying in 45.9°F (7.7°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 6:47 am and sunset at 3:50 pm. On the last day of December, sunrise is at 7:06 am and sunset at 3:59 pm EST.
Sunshine
The average sunshine in December is 4h.UV index
December is the month with the lowest UV index in Machiasport, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: In December, the maximum UV index of 1 suggests this advice:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
What is the rainiest month?
How many days does it rain in December?
How much does it snow in December?
What is the ocean temperature in December in Machiasport?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Machiasport, 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
Machiasport, 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
Machiasport, 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
Machiasport, 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
Machiasport, 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
Machiasport, 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
Machiasport, 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
Machiasport, 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
Machiasport, ME
- Average sea temperature in December: 45.8°F
The best month for swimming (with the highest average sea temperature) is August (56.1°F).
The coldest month (with the lowest average sea temperature) is March (38.2°F).
Average daylight in December /
Average sunshine in December
Machiasport, 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
Machiasport, 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
Machiasport, 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
Machiasport, 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
Machiasport, 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).
Machiasport, Maine, USA
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