December weather forecast
Manchester, ME

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Weather in December

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

Temperature

Manchester's weather changes with the onset of December, slightly falling from a frosty 43.7°F (6.5°C) in November to a cold 32.5°F (0.3°C). An average nighttime temperature of 22.1°F (-5.5°C) is noted during the month of December.

Humidity

In Manchester, Maine, the average relative humidity in December is 80%.

Rainfall

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

Snowfall

Months with snowfall in Manchester are January through May, October through December. In Manchester, during December, snow falls for 9.1 days and regularly aggregates up to 4.8" (122mm) of snow. Throughout the year, in Manchester, there are 50.3 snowfall days, and 29.69" (754mm) 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 Manchester, Maine, sunrise is at 7:15 am and sunset at 4:10 pm EST.

Sunshine

The average sunshine in December in Manchester 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 in Manchester, Maine. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: An average UV index of 2 in December transforms into this advice:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Stay sun-safe with clothing that is both closely woven and worn loosely. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

How cold is December in Manchester?

In December, the average high-temperature and low-temperature in Manchester, Maine, are 32.5°F (0.3°C) and 22.1°F (-5.5°C) respectively.

What is the average humidity in December in Manchester?

The average relative humidity in December in Manchester is 80%.

How much does it rain in Manchester in December?

In December, in Manchester, the rain falls for 10.4 days. Throughout December, 2.83" (72mm) of precipitation is accumulated.

How much does it snow in Manchester in December?

In Manchester, 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 Manchester?

The month with the shortest days is December, with an average of 8h and 54min of daylight.

How many hours of daylight does Manchester have in December?

The average day length in December is 8h and 55min.

When is the sunrise / sunset in December in Manchester?

On the first day of December in Manchester, sunrise is at 6:55 am and sunset at 4:01 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:10 pm EST.

How long on average sun shines in December in Manchester?

In Manchester, Maine, the average sunshine duration in December is 4.7h.

When is the lowest UV index in Manchester?

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

What is the UV index intensity in December in Manchester?

The average daily maximum UV index in December in Manchester, Maine, is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's 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
Manchester, ME

Average temperature in December - Manchester, 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
Manchester, ME

Average pressure in December - Manchester, 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
Manchester, ME

Average wind speed in December - Manchester, 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
Manchester, ME

Average humidity in December - Manchester, 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
Manchester, ME

Average rainfall in December - Manchester, 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
Manchester, ME

Average rainfall days in December - Manchester, 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
Manchester, ME

Average snowfall in December - Manchester, 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
Manchester, ME

Average snowfall days in December - Manchester, 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
Manchester, ME

Average daylight in December / Average sunshine in December - Manchester, 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 6min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in December
Manchester, ME

Average sunshine days in December - Manchester, 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
Manchester, ME

Average UV index in December - Manchester, 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
Manchester, ME

Average cloud cover in December - Manchester, 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
Manchester, ME

Average visibility in December - Manchester, 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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Manchester, Maine, USA

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