December weather forecast
Machiasport, ME

Weather in December

The first month of the winter, December, is still a cold month in Machiasport, Maine, with average temperature varying between 26.6°F (-3°C) and 36.1°F (2.3°C).

Temperature

In Machiasport, the average high-temperature in December drops, from a frosty 45.1°F (7.3°C) in November, to a cold 36.1°F (2.3°C). The average low-temperature,, is 26.6°F (-3°C).

Humidity

In December, the average relative humidity in Machiasport 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

Months with snowfall in Machiasport are January through April, October through December. In Machiasport, in December, during 8.2 snowfall days, 2.17" (55mm) of snow is typically accumulated. In Machiasport, 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 45.9°F (7.7°C).
Note: Swimming in 45.9°F (7.7°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

December has the shortest days of the year, with an average of 8.9h of daylight.

Sunshine

The average sunshine in December is 4h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to the UV radiation for the ordinary person.
Note: In December, the average maximum UV index of 1 translate into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the average humidity in December in Machiasport?

In December, the average relative humidity in Machiasport, Maine, is 80%.

What is the wettest month in Machiasport?

December is the month with the most rainfall in Machiasport. Rain falls for 11.5 days and accumulates 3.23" (82mm) of precipitation.

How much does it rain in Machiasport in December?

In Machiasport, in December, during 11.5 rainfall days, 3.23" (82mm) of precipitation is typically accumulated.

How much does it snow in Machiasport in December?

In Machiasport, in December, snow falls for 8.2 days, with typically accumulated 2.17" (55mm) of snow.

What is the water temperature in December in Machiasport?

In Machiasport, Maine, the average seawater temperature in December is 45.9°F (7.7°C). Swimming in 45.9°F (7.7°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

What is the month with the shortest days in Machiasport?

December has the shortest days of the year in Machiasport, Maine, with an average of 8.9h of daylight.

What is the average length of the day in December in Machiasport?

In December, the average length of the day is 8.9h.

How long on average sun shines in December in Machiasport?

In Machiasport, the average sunshine in December is 4h.

When is the lowest UV index in Machiasport?

December is the month with the lowest UV index in Machiasport, with an average maximum UV index of 1.

What is the UV index intensity in December in Machiasport?

The average daily maximum UV index in December in Machiasport is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in December
Machiasport, ME

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).

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Average pressure in December
Machiasport, ME

Average pressure in December - Machiasport, ME
  • Average pressure in December: 29.98"

The month with the highest atmospheric pressure is September (30.03").
The month with the lowest atmospheric pressure is June (29.91").

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Average wind speed in December
Machiasport, ME

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).

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Average humidity in December
Machiasport, ME

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%).

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Average rainfall in December
Machiasport, ME

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").

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Average rainfall days in December
Machiasport, ME

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).

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Average snowfall in December
Machiasport, ME

Average snowfall in December - Machiasport, ME
  • Average snowfall in December: 2.17"

The month with the highest snowfall is January (2.64").
Months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Machiasport, ME

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).
Months with the least snowfall days are May, June, July, August and September (0 days).

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Average sea temperature in December
Machiasport, ME

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).

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Average daylight in December /
Average sunshine in December
Machiasport, ME

Average daylight in December / Average sunshine in December - Machiasport, ME
  • Average daylight in December: 8.9h

The month with the longest days is June (Average daylight: 15.5h).
The month with the shortest days is December (Average daylight: 8.9h).

  • Average sunshine in December: 4h

The month with the most sunshine is August (Average sunshine: 10h).
The month with the least sunshine is February (Average sunshine: 3.6h).

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Average sunshine days in December
Machiasport, ME

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).

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Average UV index in December
Machiasport, ME

Average UV index in December - Machiasport, ME
  • Average UV index in December: 1

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).

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Average cloud cover in December
Machiasport, ME

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).

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Average visibility in December
Machiasport, ME

Average visibility in December - Machiasport, ME
  • Average visibility in December: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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