December weather forecast
Gardiner, ME

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Weather in December

December in Gardiner, Maine, embraces a full-fledged winter season, with temperatures dropping to a frigid 32.9°F (0.5°C). It is also marked by an increase in snowfall to a substantial 4.76" (121mm) across 8.1 days, giving the city its traditional winter feel. The longest nights of the year, coupled with reduced sunshine hours to 4.7, cloak the city with a cold, serene landscape. As residents bustle to celebrate the festive season, Gardiner withers the winter cold but sparkles under the holiday lights.

Temperature

December's onset in Gardiner corresponds with a shift in the average high-temperature, moving from a chilly 43.9°F (6.6°C) in November to a wintry 32.9°F (0.5°C). December nights experience a consistent temperature drop to a subzero cold 23°F (-5°C).

Humidity

In Gardiner, the average relative humidity in December is 79%.

Rainfall

The month with the most rainfall is December, when the rain falls for 10.3 days and typically aggregates up to 3.35" (85mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In December, it is snowing for 8.1 days. Throughout December, 4.76" (121mm) of snow is accumulated. Throughout the year, there are 46 snowfall days, and 27.76" (705mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 8h and 54min of daylight.
On the first day of the month, sunrise is at 6:55 am and sunset at 4:01 pm. On the last day of December, in Gardiner, sunrise is at 7:14 am and sunset at 4:10 pm EST.

Sunshine

In December, the average sunshine in Gardiner is 4.7h.

UV index

The months with the lowest UV index in Gardiner are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: An average maximum UV index of 2 in December leads to these recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.

Frequently asked questions

How cold is it in December?

An average high-temperature, in December, in Gardiner, is 32.9°F (0.5°C) and the average low-temperature is 23°F (-5°C).

What is the average humidity in December?

The average relative humidity in December is 79%.

What is the rainiest month?

December is the month with the most rainfall. Rain falls for 10.3 days and accumulates 3.35" (85mm) of precipitation.

How many days does it rain in December in Gardiner?

In Gardiner, Maine, during December, the rain falls for 10.3 days and regularly aggregates up to 3.35" (85mm) of precipitation.

How many days does it snow in December?

In December, it is snowing for 8.1 days. Throughout December, 4.76" (121mm) of snow is accumulated.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 8h and 54min of daylight.

What is the average length of the day in December?

In December, the average day length is 8h and 56min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 6:55 am and sunset at 4:01 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 4:10 pm EST.

How many hours of sunshine does Gardiner have in December?

In December, the average sunshine duration is 4.7h.

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 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
Gardiner, ME

Average temperature in December - Gardiner, ME
  • Average high temperature in December: 32.9°F

The warmest month (with the highest average high temperature) is July (76.3°F).
The month with the lowest average high temperature is January (27.1°F).

  • Average low temperature in December: 23°F

The month with the highest average low temperature is July (57.9°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).

Average pressure in December
Gardiner, ME

Average pressure in December - Gardiner, 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
Gardiner, ME

Average wind speed in December - Gardiner, ME
  • Average wind speed in December: 8.3mph

The windiest month (with the highest average wind speed) is March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in December
Gardiner, ME

Average humidity in December - Gardiner, ME
  • Average humidity in December: 79%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is November (76%).

Average rainfall in December
Gardiner, ME

Average rainfall in December - Gardiner, ME
  • Average rainfall in December: 3.35"

The wettest month (with the highest rainfall) is December (3.35").
The driest month (with the least rainfall) is September (1.57").

Average rainfall days in December
Gardiner, ME

Average rainfall days in December - Gardiner, ME
  • Average rainfall days in December: 10.3 days

The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is February (6.7 days).

Average snowfall in December
Gardiner, ME

Average snowfall in December - Gardiner, ME
  • Average snowfall in December: 4.76"

The month with the highest snowfall is January (6.57").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Gardiner, ME

Average snowfall days in December - Gardiner, ME
  • Average snowfall days in December: 8.1 days

The month with the highest number of snowfall days is February (10.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Gardiner, 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 4min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in December
Gardiner, ME

Average sunshine days in December - Gardiner, ME
  • Average sunshine days in December: 14.5 days

The month with the most sunshine days is September (16.9 days).
The month with the least sunshine days is April (11.5 days).

Average UV index in December
Gardiner, ME

Average UV index in December - Gardiner, 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
Gardiner, ME

Average cloud cover in December - Gardiner, ME
  • Average cloud cover in December: 50

The months with the most cloud cover are February, March and April (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in December
Gardiner, ME

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

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

Gardiner, Maine, USA

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