December weather forecast
Peru, ME

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Weather in December

The first month of the winter, December, is still a freezing cold month in Peru, Maine, with temperature in the range of an average high of 29.1°F (-1.6°C) and an average low of 19°F (-7.2°C).

Temperature

The onset of December is marked by a decrease in temperature, transitioning from a wintry 40.5°F (4.7°C) in November to a freezing cold 29.1°F (-1.6°C). Throughout December, Peru anticipates an average low-temperature of 19°F (-7.2°C).

Humidity

In Peru, the average relative humidity in December is 82%.

Rainfall

In Peru, in December, it is raining for 9.5 days, with typically 2.52" (64mm) of accumulated precipitation. Throughout the year, there are 146.3 rainfall days, and 28.31" (719mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Peru, during December, snow falls for 12.5 days and regularly aggregates up to 7.44" (189mm) of snow. Throughout the year, there are 69.3 snowfall days, and 48.15" (1223mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 8h and 54min of daylight.
On the first day of December, sunrise is at 6:58 am and sunset at 4:03 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:11 pm EST.

Sunshine

The average sunshine in December is 4.3h.

UV index

The months with the lowest UV index are February and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: A typical high UV index of 1 in December suggests the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.

Frequently asked questions

How cold is it in December?

December temperatures vary between a high-temperature of 29.1°F (-1.6°C) and a low-temperature of 19°F (-7.2°C).

What is the average humidity in December?

The average relative humidity in December is 82%.

How many days does it rain in December?

In Peru, in December, during 9.5 rainfall days, 2.52" (64mm) of precipitation is typically accumulated.

How many days does it snow in December?

In Peru, in December, during 12.5 snowfall days, 7.44" (189mm) of snow is typically accumulated.

What is the month with the shortest days?

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

How many hours of daylight does Peru have in December?

In Peru, the average day length in December is 8h and 54min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 6:58 am and sunset at 4:03 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:11 pm EST.

How many hours of sunshine does Peru have in December?

In Peru, Maine, the average sunshine duration in December is 4.3h.

When is the lowest UV index?

The months with the lowest UV index are February and December, with an average maximum UV index of 1.

What is the UV index intensity in December?

In Peru, the average daily maximum UV index in December is 1. 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
Peru, ME

Average temperature in December - Peru, ME
  • Average high temperature in December: 29.1°F

The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is January (23.7°F).

  • Average low temperature in December: 19°F

The month with the highest average low temperature is July (55.4°F).
The coldest month (with the lowest average low temperature) is January (10°F).

Average pressure in December
Peru, ME

Average pressure in December - Peru, 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
Peru, ME

Average wind speed in December - Peru, ME
  • Average wind speed in December: 6.2mph

The windiest month (with the highest average wind speed) is March (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

Average humidity in December
Peru, ME

Average humidity in December - Peru, ME
  • Average humidity in December: 82%

The months with the highest relative humidity are January, February and March (86%).
The months with the lowest relative humidity are May and November (76%).

Average rainfall in December
Peru, ME

Average rainfall in December - Peru, ME
  • Average rainfall in December: 2.52"

The wettest month (with the highest rainfall) is October (3.31").
The driest month (with the least rainfall) is July (1.85").

Average rainfall days in December
Peru, ME

Average rainfall days in December - Peru, ME
  • Average rainfall days in December: 9.5 days

The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is February (8.2 days).

Average snowfall in December
Peru, ME

Average snowfall in December - Peru, ME
  • Average snowfall in December: 7.44"

The month with the highest snowfall is February (12.28").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Peru, ME

Average snowfall days in December - Peru, ME
  • Average snowfall days in December: 12.5 days

The month with the highest number of snowfall days is February (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Peru, 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 2min

The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).

Average sunshine days in December
Peru, ME

Average sunshine days in December - Peru, ME
  • Average sunshine days in December: 13.8 days

The month with the most sunshine days is September (16.7 days).
The months with the least sunshine days are February and April (11.3 days).

Average UV index in December
Peru, ME

Average UV index in December - Peru, ME
  • Average UV index in December: 1

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are February and December (UV index 1).

Average cloud cover in December
Peru, ME

Average cloud cover in December - Peru, ME
  • Average cloud cover in December: 55

The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 40).

Average visibility in December
Peru, ME

Average visibility in December - Peru, ME
  • Average visibility in December: 5mi

The months with the highest visibility are May, June, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, July, August and September (4mi).

Peru, Maine, USA

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