December weather forecast
Monmouth, ME

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Weather in December

December, the first month of the winter in Monmouth, is also an icy month, with an average temperature varying between 22.1°F (-5.5°C) and 32.4°F (0.2°C).

Temperature

December's arrival corresponds with a decrease in average high-temperatures, from November's chilly 43.7°F (6.5°C) to a cold 32.4°F (0.2°C). Nighttime temperature experiences an average drop to a freezing cold 22.1°F (-5.5°C) in December.

Humidity

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

Rainfall

In Monmouth, Maine, in December, it is raining for 6.8 days, with typically 1.46" (37mm) of accumulated precipitation. Throughout the year, there are 119.4 rainfall days, and 17.17" (436mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Monmouth, Maine. In Monmouth, during December, snow falls for 7.9 days and regularly aggregates up to 3.58" (91mm) of snow. Throughout the year, there are 39.3 snowfall days, and 19.37" (492mm) of snow is accumulated.

Daylight

With an average of 8h and 54min of daylight, December has the shortest days of the year in Monmouth.
On the first day of the month, sunrise is at 6:56 am and sunset at 4:02 pm. On the last day of December, in Monmouth, sunrise is at 7:15 am and sunset at 4:11 pm EST.

Sunshine

The average sunshine in December is 4.7h.

UV index

The months with the lowest UV index in Monmouth are January through March, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum daily UV index of 2 during December morphs into the following directions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
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Frequently asked questions

How cold is December in Monmouth?

The average high-temperature, in December, in Monmouth, is 32.4°F (0.2°C), while the average low-temperature is 22.1°F (-5.5°C).

What is the average humidity in December in Monmouth?

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

How many days does it rain in December in Monmouth?

In December, the rain falls for 6.8 days. Throughout December, 1.46" (37mm) of precipitation is accumulated.

How much does it snow in Monmouth in December?

In Monmouth, Maine, in December, snow falls for 7.9 days, with typically accumulated 3.58" (91mm) of snow.

What is the month with the shortest days in Monmouth?

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

How many hours of daylight does Monmouth have in December?

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

What time are sunrise and sunset in December in Monmouth?

On the first day of December in Monmouth, Maine, sunrise is at 6:56 am and sunset at 4:02 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:11 pm EST.

How long on average sun shines in December in Monmouth?

The average sunshine duration in December in Monmouth, Maine, is 4.7h.

When is the lowest UV index in Monmouth?

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

What is the UV index reading in December in Monmouth?

In Monmouth, the average daily maximum UV index in December is 2. A UV Index 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
Monmouth, ME

Average temperature in December - Monmouth, ME
  • Average high temperature in December: 32.4°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 (26.6°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).

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Average pressure in December
Monmouth, ME

Average pressure in December - Monmouth, 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).

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Average wind speed in December
Monmouth, ME

Average wind speed in December - Monmouth, 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).

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Average humidity in December
Monmouth, ME

Average humidity in December - Monmouth, 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%).

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Average rainfall in December
Monmouth, ME

Average rainfall in December - Monmouth, ME
  • Average rainfall in December: 1.46"

The wettest month (with the highest rainfall) is June (1.93").
The driest month (with the least rainfall) is September (0.91").

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Average rainfall days in December
Monmouth, ME

Average rainfall days in December - Monmouth, ME
  • Average rainfall days in December: 6.8 days

The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is February (4.2 days).

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Average snowfall in December
Monmouth, ME

Average snowfall in December - Monmouth, ME
  • Average snowfall in December: 3.58"

The month with the highest snowfall is February (5.35").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Monmouth, ME

Average snowfall days in December - Monmouth, ME
  • Average snowfall days in December: 7.9 days

The month with the highest number of snowfall days is January (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
Monmouth, ME

Average daylight in December / Average sunshine in December - Monmouth, 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
Monmouth, ME

Average sunshine days in December - Monmouth, ME
  • Average sunshine days in December: 17.8 days

The month with the most sunshine days is January (20.1 days).
The month with the least sunshine days is July (13.8 days).

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Average UV index in December
Monmouth, ME

Average UV index in December - Monmouth, 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
Monmouth, ME

Average cloud cover in December - Monmouth, ME
  • Average cloud cover in December: 49

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

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Average visibility in December
Monmouth, ME

Average visibility in December - Monmouth, 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).

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Monmouth, Maine, USA

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