December weather forecast
Greenbush, ME

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Weather in December

December, the first month of the winter in Greenbush, is also an icy month, with temperature in the range of an average low of 21.6°F (-5.8°C) and an average high of 32.2°F (0.1°C).

Temperature

As Greenbush, Maine, enters December, the average high-temperature decreases from the a frosty 43.3°F (6.3°C) of November to an icy 32.2°F (0.1°C). An average low-temperature of 21.6°F (-5.8°C) is recorded in the month of December.

Humidity

In Greenbush, the average relative humidity in December is 81%.

Rainfall

December is the month with the most rainfall. Rain falls for 10.6 days and accumulates 3.27" (83mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Greenbush, in December, snow falls for 11.2 days, with typically accumulated 6.61" (168mm) of snow. Throughout the year, there are 61.1 snowfall days, and 36.34" (923mm) 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 December, sunrise is at 6:53 am and sunset at 3:54 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 4:02 pm EST.

Sunshine

The average sunshine in December is 4.3h.

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 reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In December, the maximum UV index of 2 translates into these guidelines:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Enhance your sun protection with tightly woven, yet airy clothing. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Updated: Jun 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

The high-temperature, in December, in Greenbush, is 32.2°F (0.1°C), while the low-temperature averages to 21.6°F (-5.8°C).

What is the average humidity in December?

In Greenbush, the average relative humidity in December is 81%.

What is the rainiest month?

December is the month with the most rainfall. Rain falls for 10.6 days and accumulates 3.27" (83mm) of precipitation.

How much does it rain in Greenbush in December?

In December, the rain falls for 10.6 days. Throughout December, 3.27" (83mm) of precipitation is accumulated.

How many days does it snow in December?

In Greenbush, in December, snow falls for 11.2 days, with typically accumulated 6.61" (168mm) of snow.

What is the month with the shortest days in Greenbush?

With an average of 8h and 48min of daylight, December has the shortest days of the year.

How many hours of daylight does Greenbush have in December?

In Greenbush, the average day length in December is 8h and 50min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 6:53 am and sunset at 3:54 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 4:02 pm EST.

How many hours of sunshine does Greenbush have in December?

The average sunshine duration in December is 4.3h.

When is the lowest UV index?

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

What is the UV index reading in December?

In Greenbush, Maine, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from unsafe exposure to Sun's UV rays.
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
Greenbush, ME

Average temperature in December - Greenbush, ME
  • Average high temperature in December: 32.2°F

The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (26.6°F).

  • Average low temperature in December: 21.6°F

The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).

Average pressure in December
Greenbush, ME

Average pressure in December - Greenbush, ME
  • Average pressure in December: 30"Hg

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

Average wind speed in December
Greenbush, ME

Average wind speed in December - Greenbush, ME
  • Average wind speed in December: 7.2mph

The windiest month (with the highest average wind speed) is March (7.9mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in December
Greenbush, ME

Average humidity in December - Greenbush, ME
  • Average humidity in December: 81%

The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is May (76%).

Average rainfall in December
Greenbush, ME

Average rainfall in December - Greenbush, ME
  • Average rainfall in December: 3.27"

The wettest month (with the highest rainfall) is December (3.27").
The driest month (with the least rainfall) is July (1.61").

Average rainfall days in December
Greenbush, ME

Average rainfall days in December - Greenbush, ME
  • Average rainfall days in December: 10.6 days

The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is January (8.1 days).

Average snowfall in December
Greenbush, ME

Average snowfall in December - Greenbush, ME
  • Average snowfall in December: 6.61"

The month with the highest snowfall is January (8.43").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Greenbush, ME

Average snowfall days in December - Greenbush, ME
  • Average snowfall days in December: 11.2 days

The month with the highest number of snowfall days is February (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Greenbush, ME
  • Average daylight in December: 8h and 5min

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 2min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).

Average sunshine days in December
Greenbush, ME

Average sunshine days in December - Greenbush, ME
  • Average sunshine days in December: 13.5 days

The month with the most sunshine days is September (17.1 days).
The month with the least sunshine days is April (10.1 days).

Average UV index in December
Greenbush, ME

Average UV index in December - Greenbush, 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, November and December (UV index 2).

Average cloud cover in December
Greenbush, ME

Average cloud cover in December - Greenbush, ME
  • Average cloud cover in December: 53

The month with the most cloud cover is February (Cloud cover 57).
The months with the least cloud cover are August and September (Cloud cover 39).

Average visibility in December
Greenbush, ME

Average visibility in December - Greenbush, ME
  • Average visibility in December: 5mi

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

Greenbush, Maine, USA

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