December weather forecast
Mechanic Falls, ME

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Weather in December

The first month of the winter, December, is also a wintry month in Mechanic Falls, Maine, with an average temperature ranging between max 32.7°F (0.4°C) and min 22.1°F (-5.5°C).

Temperature

Mechanic Falls's weather in December involves a decrease in the average high-temperature, moving down from November's frosty 43.9°F (6.6°C) to an icy 32.7°F (0.4°C). Throughout December, the temperature in Mechanic Falls, Maine, falls to an average low of 22.1°F (-5.5°C).

Humidity

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

Rainfall

In Mechanic Falls, during December, the rain falls for 5.9 days and regularly aggregates up to 1.38" (35mm) of precipitation. Throughout the year, there are 103.5 rainfall days, and 14.96" (380mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In December, it is snowing for 7.1 days. Throughout December, 3.66" (93mm) of snow is accumulated. Throughout the year, there are 36.8 snowfall days, and 18.31" (465mm) 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 December, sunrise is at 6:57 am and sunset at 4:04 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 4:13 pm EST.

Sunshine

In December, the average sunshine in Mechanic Falls is 4.7h.

UV index

The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 2 during December leads to these advisories:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Updated: Jun 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

The high-temperature during December is 32.7°F (0.4°C) and the low-temperature is 22.1°F (-5.5°C).

What is the average humidity in December?

The average relative humidity in December in Mechanic Falls, Maine, is 79%.

How many days does it rain in December?

In December, the rain falls for 5.9 days. Throughout December, 1.38" (35mm) of precipitation is accumulated.

How many days does it snow in December?

In Mechanic Falls, during December, snow falls for 7.1 days and regularly aggregates up to 3.66" (93mm) of snow.

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?

The average day length in December is 8h and 56min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 6:57 am and sunset at 4:04 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 4:13 pm EST.

How many hours of sunshine does Mechanic Falls have in December?

The average sunshine duration in December is 4.7h.

What is the month with the lowest UV index?

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

How high is the UV index 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
Mechanic Falls, ME

Average temperature in December - Mechanic Falls, ME
  • Average high temperature in December: 32.7°F

The warmest month (with the highest average high temperature) is July (77.5°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 (13.3°F).

Average pressure in December
Mechanic Falls, ME

Average pressure in December - Mechanic Falls, ME
  • Average pressure in December: 30.02"Hg

The month with the highest atmospheric pressure is November (30.05"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in December
Mechanic Falls, ME

Average wind speed in December - Mechanic Falls, ME
  • Average wind speed in December: 7mph

The windiest month (with the highest average wind speed) is March (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

Average humidity in December
Mechanic Falls, ME

Average humidity in December - Mechanic Falls, ME
  • Average humidity in December: 79%

The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is November (76%).

Average rainfall in December
Mechanic Falls, ME

Average rainfall in December - Mechanic Falls, ME
  • Average rainfall in December: 1.38"

The wettest month (with the highest rainfall) is October (1.69").
The driest month (with the least rainfall) is September (0.67").

Average rainfall days in December
Mechanic Falls, ME

Average rainfall days in December - Mechanic Falls, ME
  • Average rainfall days in December: 5.9 days

The month with the highest number of rainy days is July (12.7 days).
The month with the least rainy days is February (4 days).

Average snowfall in December
Mechanic Falls, ME

Average snowfall in December - Mechanic Falls, ME
  • Average snowfall in December: 3.66"

The month with the highest snowfall is February (4.72").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Mechanic Falls, ME

Average snowfall days in December - Mechanic Falls, ME
  • Average snowfall days in December: 7.1 days

The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Mechanic Falls, ME

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

The month with the longest days is June (Average daylight: 15h and 24min).
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 6min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in December
Mechanic Falls, ME

Average sunshine days in December - Mechanic Falls, ME
  • Average sunshine days in December: 19 days

The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is July (16.2 days).

Average UV index in December
Mechanic Falls, ME

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

Average cloud cover in December
Mechanic Falls, ME

Average cloud cover in December - Mechanic Falls, ME
  • Average cloud cover in December: 49

The month with the most cloud cover is March (Cloud cover 51).
The months with the least cloud cover are August and September (Cloud cover 36).

Average visibility in December
Mechanic Falls, ME

Average visibility in December - Mechanic Falls, ME
  • Average visibility in December: 6mi

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

Mechanic Falls, Maine, USA

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