December weather forecast and climate
Colebrook, NH

Weather in December

December, the first month of the winter, in Colebrook, is still a freezing cold month, with temperature in the range of an average low of 15.4°F (-9.2°C) and an average high of 26.6°F (-3°C).

Temperature

In Colebrook, the average high-temperature in December drops, from a cold 37.9°F (3.3°C) in November, to a freezing cold 26.6°F (-3°C). In Colebrook, in December, the average low-temperature is 15.4°F (-9.2°C).

Humidity

The average relative humidity in Colebrook is 88%.

Rainfall

In Colebrook, it is raining for 8.5 days, with typically 2.44" (62mm) of accumulated precipitation. In Colebrook, during the entire year, the rain falls for 154.3 days and collects up to 30.87" (784mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Colebrook. In Colebrook, during December, snow falls for 20.5 days and regularly aggregates up to 10.16" (258mm) of snow. In Colebrook, during the entire year, snow falls for 107.4 days, and aggregates up to 63.86" (1622mm) of snow.

Daylight

December has the shortest days of the year in Colebrook, New Hampshire, with an average of 8.8h of daylight.

Sunshine

In December, the average sunshine in Colebrook is 2.6h.

UV index

January through March and December, with an average maximum UV index of 1, are months with the lowest UV index in Colebrook, New Hampshire. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the average maximum UV index of 1 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 Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in December in Colebrook?

In December, the average high-temperature is 26.6°F (-3°C), and the average low-temperature is 15.4°F (-9.2°C).

What is the average humidity in December in Colebrook?

In December, the average relative humidity in Colebrook is 88%.

How much does it rain in Colebrook in December?

In December, in Colebrook, New Hampshire, the rain falls for 8.5 days. Throughout December, 2.44" (62mm) of precipitation is accumulated.

How much does it snow in Colebrook in December?

In Colebrook, during December, snow falls for 20.5 days and regularly aggregates up to 10.16" (258mm) of snow.

What is the month with the shortest days in Colebrook?

December has the shortest days of the year in Colebrook, with an average of 8.8h of daylight.

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

In December, the average length of the day is 8.8h.

How many hours of sunshine does Colebrook have in December?

In December, the average sunshine in Colebrook is 2.6h.

When is the lowest UV index in Colebrook?

Months with the lowest UV index in Colebrook, New Hampshire, are January through March and December, with an average maximum UV index of 1.

How high is the UV index in December in Colebrook?

In Colebrook, the average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a low health threat from unsafe exposure to the Sun's UV rays.

Average temperature in December
Colebrook, NH

Average temperature in December - Colebrook, NH
  • Average high temperature in December: 26.6°F

The warmest month (with the highest average high temperature) is July (74.5°F).
The month with the lowest average high temperature is January (21°F).

  • Average low temperature in December: 15.4°F

The month with the highest average low temperature is July (53.4°F).
The coldest month (with the lowest average low temperature) is January (7.3°F).

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Average pressure in December
Colebrook, NH

Average pressure in December - Colebrook, NH
  • Average pressure in December: 30.03"

The month with the highest atmospheric pressure is November (30.06").
The month with the lowest atmospheric pressure is June (29.9").

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Average wind speed in December
Colebrook, NH

Average wind speed in December - Colebrook, NH
  • Average wind speed in December: 6.9mph

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

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Average humidity in December
Colebrook, NH

Average humidity in December - Colebrook, NH
  • Average humidity in December: 88%

Months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is May (77%).

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Average rainfall in December
Colebrook, NH

Average rainfall in December - Colebrook, NH
  • Average rainfall in December: 2.44"

The wettest month (with the highest rainfall) is June (3.11").
The driest month (with the least rainfall) is February (2.01").

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Average rainfall days in December
Colebrook, NH

Average rainfall days in December - Colebrook, NH
  • Average rainfall days in December: 8.5 days

The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is February (4.1 days).

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Average snowfall in December
Colebrook, NH

Average snowfall in December - Colebrook, NH
  • Average snowfall in December: 10.16"

The month with the highest snowfall is January (12.4").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Colebrook, NH

Average snowfall days in December - Colebrook, NH
  • Average snowfall days in December: 20.5 days

The month with the highest number of snowfall days is February (21.3 days).
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
Colebrook, NH

Average daylight in December / Average sunshine in December - Colebrook, NH
  • Average daylight in December: 8.8h

The month with the longest days is June (Average daylight: 15.6h).
The month with the shortest days is December (Average daylight: 8.8h).

  • Average sunshine in December: 2.6h

The month with the most sunshine is July (Average sunshine: 9.4h).
Months with the least sunshine are January and February (Average sunshine: 2.1).

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Average sunshine days in December
Colebrook, NH

Average sunshine days in December - Colebrook, NH
  • Average sunshine days in December: 8.3 days

The month with the most sunshine days is September (14.4 days).
The month with the least sunshine days is February (6.2 days).

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Average UV index in December
Colebrook, NH

Average UV index in December - Colebrook, NH
  • Average UV index in December: 1

Months with the highest UV index are June and July (UV index 5).
Months with the lowest UV index are January, February, March and December (UV index 1).

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Average cloud cover in December
Colebrook, NH

Average cloud cover in December - Colebrook, NH
  • Average cloud cover in December: 76

The month with the most cloud cover is February (Cloud cover 81).
The month with the least cloud cover is July (Cloud cover 43).

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Average visibility in December
Colebrook, NH

Average visibility in December - Colebrook, NH
  • Average visibility in December: 4mi

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

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