December weather forecast
Tripoli Mill, NH

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Weather in December

The first month of the winter, December, is also a subzero cold month in Tripoli Mill, New Hampshire, with an average temperature fluctuating between 18.1°F (-7.7°C) and 27.5°F (-2.5°C).

Temperature

The onset of December results in a decrease in the average high-temperature, receding from an icy 39.2°F (4°C) in November to a subzero cold 27.5°F (-2.5°C). December nights in Tripoli Mill are marked by an average low-temperature of 18.1°F (-7.7°C).

Humidity

The average relative humidity in December is 86%.

Rainfall

In Tripoli Mill, during December, the rain falls for 8.3 days and regularly aggregates up to 1.02" (26mm) of precipitation. Throughout the year, in Tripoli Mill, New Hampshire, there are 126 rainfall days, and 13.66" (347mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Tripoli Mill. In Tripoli Mill, during December, snow falls for 17.1 days and regularly aggregates up to 2.95" (75mm) of snow. Throughout the year, there are 91.5 snowfall days, and 21.85" (555mm) of snow is accumulated.

Daylight

The month with the shortest days in Tripoli Mill is December, with an average of 9h and 0min of daylight.
On the first day of the month, sunrise is at 7:01 am and sunset at 4:09 pm. On the last day of December, sunrise is at 7:20 am and sunset at 4:18 pm EST.

Sunshine

In Tripoli Mill, New Hampshire, the average sunshine in December is 3.2h.

UV index

January, February and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, the maximum UV index of 1 suggests this advice:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
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Frequently asked questions

How cold is December in Tripoli Mill?

The high-temperature, in December, in Tripoli Mill, is 27.5°F (-2.5°C), while the low-temperature averages to 18.1°F (-7.7°C).

What is the average humidity in December in Tripoli Mill?

The average relative humidity in December in Tripoli Mill is 86%.

How much does it rain in Tripoli Mill in December?

In December, in Tripoli Mill, New Hampshire, the rain falls for 8.3 days. Throughout December, 1.02" (26mm) of precipitation is accumulated.

How many days does it snow in December in Tripoli Mill?

In December, it is snowing for 17.1 days. Throughout December, 2.95" (75mm) of snow is accumulated.

What is the month with the shortest days in Tripoli Mill?

With an average of 9h and 0min of daylight, December has the shortest days of the year.

How many hours of daylight does Tripoli Mill have in December?

In Tripoli Mill, New Hampshire, the average day length in December is 8h and 58min.

When is the sunrise / sunset in December in Tripoli Mill?

On the first day of December in Tripoli Mill, New Hampshire, sunrise is at 7:01 am and sunset at 4:09 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:18 pm EST.

How many hours of sunshine does Tripoli Mill have in December?

The average sunshine duration in December is 3.2h.

When is the lowest UV index in Tripoli Mill?

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

How high is the UV index in December in Tripoli Mill?

In Tripoli Mill, New Hampshire, 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
Tripoli Mill, NH

Average temperature in December - Tripoli Mill, NH
  • Average high temperature in December: 27.5°F

The warmest month (with the highest average high temperature) is July (75°F).
The month with the lowest average high temperature is January (22.5°F).

  • Average low temperature in December: 18.1°F

The month with the highest average low temperature is July (54.3°F).
The coldest month (with the lowest average low temperature) is January (9.7°F).

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Average pressure in December
Tripoli Mill, NH

Average pressure in December - Tripoli Mill, NH
  • Average pressure in December: 30.03"Hg

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in December
Tripoli Mill, NH

Average wind speed in December - Tripoli Mill, NH
  • Average wind speed in December: 6.5mph

The windiest months (with the highest average wind speed) are January and February (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).

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Average humidity in December
Tripoli Mill, NH

Average humidity in December - Tripoli Mill, NH
  • Average humidity in December: 86%

The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (78%).

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Average rainfall in December
Tripoli Mill, NH

Average rainfall in December - Tripoli Mill, NH
  • Average rainfall in December: 1.02"

The wettest month (with the highest rainfall) is April (1.5").
The driest month (with the least rainfall) is September (0.79").

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Average rainfall days in December
Tripoli Mill, NH

Average rainfall days in December - Tripoli Mill, NH
  • Average rainfall days in December: 8.3 days

The month with the highest number of rainy days is July (15.5 days).
The months with the least rainy days are January and February (5.3 days).

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Average snowfall in December
Tripoli Mill, NH

Average snowfall in December - Tripoli Mill, NH
  • Average snowfall in December: 2.95"

The month with the highest snowfall is February (4.45").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Tripoli Mill, NH

Average snowfall days in December - Tripoli Mill, NH
  • Average snowfall days in December: 17.1 days

The month with the highest number of snowfall days is February (18.3 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
Tripoli Mill, NH

Average daylight in December / Average sunshine in December - Tripoli Mill, NH
  • Average daylight in December: 9h and 0min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in December: 3h and 1min

The month with the most sunshine is August (Average sunshine: 9h and 18min).
The month with the least sunshine is February (Average sunshine: 2h and 54min).

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Average sunshine days in December
Tripoli Mill, NH

Average sunshine days in December - Tripoli Mill, NH
  • Average sunshine days in December: 12.5 days

The month with the most sunshine days is September (16.6 days).
The month with the least sunshine days is February (10.2 days).

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Average UV index in December
Tripoli Mill, NH

Average UV index in December - Tripoli Mill, NH
  • 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 January, February and December (UV index 1).

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Average cloud cover in December
Tripoli Mill, NH

Average cloud cover in December - Tripoli Mill, NH
  • Average cloud cover in December: 69

The month with the most cloud cover is February (Cloud cover 72).
The month with the least cloud cover is July (Cloud cover 44).

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Average visibility in December
Tripoli Mill, NH

Average visibility in December - Tripoli Mill, NH
  • Average visibility in December: 4mi

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

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Tripoli Mill, New Hampshire, USA

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