December weather forecast
Augusta, ME

Beautiful view of the water and skyline in Augusta, Maine, with trees and mountains in a distance
Beautiful view of the water and skyline in Augusta, Maine, with trees and mountains in a distance

Weather in December

The first month of the winter, December, is also a wintry month in Augusta, Maine, with an average temperature fluctuating between 22.1°F (-5.5°C) and 32.5°F (0.3°C).

Temperature

In December, the average high-temperature decreases from a frosty 43.7°F (6.5°C) in November to a wintry 32.5°F (0.3°C). In December, in Augusta, the average low-temperature is 22.1°F (-5.5°C).

Humidity

In December, the average relative humidity is 80%.

Rainfall

In December, in Augusta, the rain falls for 10.4 days. Throughout December, 2.83" (72mm) of precipitation is accumulated. Throughout the year, there are 142.3 rainfall days, and 27.52" (699mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In December, in Augusta, it is snowing for 9.1 days. Throughout December, 4.8" (122mm) of snow is accumulated. In Augusta, during the entire year, snow falls for 50.3 days and aggregates up to 29.69" (754mm) of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 55min of daylight.
On the first day of December, sunrise is at 6:54 am and sunset at 4:01 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 4:09 pm EST.

Sunshine

The average sunshine in December in Augusta, Maine, is 4.7h.

UV index

January through March, October through 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 low health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In December, the average maximum UV index of 2 translate into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. 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 Augusta?

The average relative humidity in December in Augusta, Maine, is 80%.

How many days does it rain in December in Augusta?

In Augusta, Maine, in December, it is raining for 10.4 days, with typically 2.83" (72mm) of accumulated precipitation.

How many days does it snow in December in Augusta?

In Augusta, Maine, during December, snow falls for 9.1 days and regularly aggregates up to 4.8" (122mm) of snow.

What is the month with the shortest days in Augusta?

The month with the shortest days is December, with an average of 8h and 55min of daylight.

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

In Augusta, the average day length in December is 8h and 55min.

When is the sunrise / sunset in December in Augusta?

On the first day of December in Augusta, Maine, sunrise is at 6:54 am and sunset at 4:01 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 4:09 pm EST.

How many hours of sunshine does Augusta have in December?

In December, the average sunshine duration is 4.7h.

What is the month with the lowest UV index in Augusta?

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

How high is the UV index in December in Augusta?

In Augusta, Maine, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents 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
Augusta, ME

Average temperature in December - Augusta, ME
  • Average high temperature in December: 32.5°F

The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in December: 22.1°F

The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).

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Average pressure in December
Augusta, ME

Average pressure in December - Augusta, 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).

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Average wind speed in December
Augusta, ME

Average wind speed in December - Augusta, ME
  • Average wind speed in December: 7.8mph

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in December
Augusta, ME

Average humidity in December - Augusta, ME
  • Average humidity in December: 80%

The months with the highest relative humidity are January, February and March (83%).
The month with the lowest relative humidity is November (76%).

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Average rainfall in December
Augusta, ME

Average rainfall in December - Augusta, ME
  • Average rainfall in December: 2.83"

The wettest month (with the highest rainfall) is October (2.95").
The driest month (with the least rainfall) is September (1.42").

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Average rainfall days in December
Augusta, ME

Average rainfall days in December - Augusta, ME
  • Average rainfall days in December: 10.4 days

The month with the highest number of rainy days is June (16 days).
The month with the least rainy days is January (7 days).

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Average snowfall in December
Augusta, ME

Average snowfall in December - Augusta, ME
  • Average snowfall in December: 4.8"

The month with the highest snowfall is February (6.77").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Augusta, ME

Average snowfall days in December - Augusta, ME
  • Average snowfall days in December: 9.1 days

The month with the highest number of snowfall days is January (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Augusta, ME
  • Average daylight in December: 8h and 55min

The month with the longest days is June (Average daylight: 15h and 28min).
The month with the shortest days is December (Average daylight: 8h and 55min).

  • Average sunshine in December: 4h and 42min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in December
Augusta, ME

Average sunshine days in December - Augusta, ME
  • Average sunshine days in December: 14.8 days

The month with the most sunshine days is September (17.7 days).
The month with the least sunshine days is April (11.6 days).

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Average UV index in December
Augusta, ME

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

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Average cloud cover in December
Augusta, ME

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

The months with the most cloud cover are March and April (Cloud cover 52).
The months with the least cloud cover are August and September (Cloud cover 36).

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Average visibility in December
Augusta, ME

Average visibility in December - Augusta, 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).

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