December weather forecast
New Harbor, ME

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Weather in December

The first month of the winter, December, is also an icy month in New Harbor, Maine, with an average temperature varying between 25.3°F (-3.7°C) and 35.2°F (1.8°C).

Temperature

The transition into December is accompanied by a temperature decrease, with the average high-temperature shifting from a frosty 45.5°F (7.5°C) in November to a wintry 35.2°F (1.8°C). New Harbor witnesses a consistent average low-temperature of 25.3°F (-3.7°C) throughout December.

Humidity

In New Harbor, the average relative humidity in December is 78%.

Rainfall

December is the month with the most rainfall. Rain falls for 10.8 days and accumulates 3.5" (89mm) of precipitation.

Snowfall

Months with snowfall are January through May, November and December. In New Harbor, in December, during 7 snowfall days, 3.39" (86mm) of snow is typically accumulated. Throughout the year, there are 40 snowfall days, and 20.08" (510mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 0min of daylight.
On the first day of December, sunrise is at 6:52 am and sunset at 4:01 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 4:10 pm EST.

Sunshine

February and December, with an average of 4.6h of sunshine, are months with the least sunshine.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In December, the average maximum UV index of 2 translates into the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

The high-temperature, in December, in New Harbor, is 35.2°F (1.8°C), while the low-temperature averages to 25.3°F (-3.7°C).

What is the average humidity in December?

In New Harbor, the average relative humidity in December is 78%.

What is the rainiest month?

December is the month with the most rainfall. Rain falls for 10.8 days and accumulates 3.5" (89mm) of precipitation.

How many days does it rain in December?

In New Harbor, in December, during 10.8 rainfall days, 3.5" (89mm) of precipitation is typically accumulated.

How much does it snow in New Harbor in December?

In New Harbor, during December, snow falls for 7 days and regularly aggregates up to 3.39" (86mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 0min of daylight.

How many hours of daylight does New Harbor have in December?

The average day length in December is 8h and 58min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 6:52 am and sunset at 4:01 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 4:10 pm EST.

What is the month with the least sunshine in New Harbor?

The months with the least sunshine are February and December, with an average of 4.6h of sunshine.

How long on average sun shines in December?

In New Harbor, the average sunshine duration in December is 4.6h.

When is the lowest UV index?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index intensity in December?

In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
New Harbor, ME

Average temperature in December - New Harbor, ME
  • Average high temperature in December: 35.2°F

The warmest months (with the highest average high temperature) are July and August (74.1°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in December: 25.3°F

The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (18°F).

Average pressure in December
New Harbor, ME

Average pressure in December - New Harbor, ME
  • Average pressure in December: 30.01"Hg

The months with the highest atmospheric pressure are September and November (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in December
New Harbor, ME

Average wind speed in December - New Harbor, ME
  • Average wind speed in December: 10mph

The windiest months (with the highest average wind speed) are January and March (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in December
New Harbor, ME

Average humidity in December - New Harbor, ME
  • Average humidity in December: 78%

The months with the highest relative humidity are June and July (82%).
The month with the lowest relative humidity is November (76%).

Average rainfall in December
New Harbor, ME

Average rainfall in December - New Harbor, ME
  • Average rainfall in December: 3.5"

The wettest month (with the highest rainfall) is December (3.5").
The driest month (with the least rainfall) is September (1.5").

Average rainfall days in December
New Harbor, ME

Average rainfall days in December - New Harbor, ME
  • Average rainfall days in December: 10.8 days

The month with the highest number of rainy days is April (15.1 days).
The month with the least rainy days is January (6.6 days).

Average snowfall in December
New Harbor, ME

Average snowfall in December - New Harbor, ME
  • Average snowfall in December: 3.39"

The month with the highest snowfall is January (5.28").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in December
New Harbor, ME

Average snowfall days in December - New Harbor, ME
  • Average snowfall days in December: 7 days

The month with the highest number of snowfall days is February (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
New Harbor, ME

Average daylight in December / Average sunshine in December - New Harbor, 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 4min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The months with the least sunshine are February and December (Average sunshine: 4h and 36min).

Average sunshine days in December
New Harbor, ME

Average sunshine days in December - New Harbor, ME
  • Average sunshine days in December: 14.5 days

The month with the most sunshine days is September (17.5 days).
The month with the least sunshine days is April (11.7 days).

Average UV index in December
New Harbor, ME

Average UV index in December - New Harbor, ME
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in December
New Harbor, ME

Average cloud cover in December - New Harbor, ME
  • Average cloud cover in December: 51

The months with the most cloud cover are February and March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in December
New Harbor, ME

Average visibility in December - New Harbor, ME
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).

New Harbor, Maine, USA

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