December weather forecast
Effingham Falls, NH

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Weather in December

December, the first month of the winter in Effingham Falls, is also a subzero cold month, with temperature in the range of an average low of 20.3°F (-6.5°C) and an average high of 30.6°F (-0.8°C).

Temperature

A shift in Effingham Falls's weather is observed as November turns into December, with the average high temperature reducing from a wintry 42.4°F (5.8°C) to a freezing cold 30.6°F (-0.8°C). An average nighttime temperature of 20.3°F (-6.5°C) is noted during the month of December.

Humidity

In Effingham Falls, the average relative humidity in December is 81%.

Rainfall

In Effingham Falls, New Hampshire, in December, during 12 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. Throughout the year, in Effingham Falls, there are 156.4 rainfall days, and 27.09" (688mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Effingham Falls, in December, snow falls for 11.3 days, with typically accumulated 7.36" (187mm) of snow. Throughout the year, in Effingham Falls, there are 62.3 snowfall days, and 42.32" (1075mm) of snow is accumulated.

Daylight

The month with the shortest days in Effingham Falls is December, with an average of 9h and 0min of daylight.
On the first day of the month, sunrise is at 6:58 am and sunset at 4:08 pm. On the last day of December, in Effingham Falls, sunrise is at 7:18 am and sunset at 4:16 pm EST.

Sunshine

In Effingham Falls, the average sunshine in December is 4.7h.

UV index

January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Effingham Falls, New Hampshire. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In December, the maximum UV index of 2 suggests these recommendations:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
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Frequently asked questions

How cold is it in Effingham Falls in December?

In Effingham Falls, 30.6°F (-0.8°C) is the average high-temperature and 20.3°F (-6.5°C) is the average low-temperature during December.

What is the average humidity in December in Effingham Falls?

In December, the average relative humidity is 81%.

How much does it rain in Effingham Falls in December?

In December, in Effingham Falls, New Hampshire, the rain falls for 12 days. Throughout December, 2.68" (68mm) of precipitation is accumulated.

How much does it snow in Effingham Falls in December?

In Effingham Falls, New Hampshire, in December, during 11.3 snowfall days, 7.36" (187mm) of snow is typically accumulated.

What is the month with the shortest days in Effingham Falls?

With an average of 9h and 0min of daylight, December has the shortest days of the year in Effingham Falls, New Hampshire.

How many hours of daylight does Effingham Falls have in December?

In December, the average day length in Effingham Falls is 8h and 59min.

What time are sunrise and sunset in December in Effingham Falls?

On the first day of December in Effingham Falls, sunrise is at 6:58 am and sunset at 4:08 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:16 pm EST.

How many hours of sunshine does Effingham Falls have in December?

The average sunshine duration in December is 4.7h.

What is the month with the lowest UV index in Effingham Falls?

January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Effingham Falls, New Hampshire.

What is the UV index reading in December in Effingham Falls?

In Effingham Falls, New Hampshire, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability 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
Effingham Falls, NH

Average temperature in December - Effingham Falls, NH
  • Average high temperature in December: 30.6°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 (25.7°F).

  • Average low temperature in December: 20.3°F

The month with the highest average low temperature is July (56.1°F).
The coldest month (with the lowest average low temperature) is January (10.9°F).

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Average pressure in December
Effingham Falls, NH

Average pressure in December - Effingham Falls, 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
Effingham Falls, NH

Average wind speed in December - Effingham Falls, NH
  • Average wind speed in December: 5.8mph

The windiest month (with the highest average wind speed) is January (6.4mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

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Average humidity in December
Effingham Falls, NH

Average humidity in December - Effingham Falls, NH
  • Average humidity in December: 81%

The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are May and November (77%).

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Average rainfall in December
Effingham Falls, NH

Average rainfall in December - Effingham Falls, NH
  • Average rainfall in December: 2.68"

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
Effingham Falls, NH

Average rainfall days in December - Effingham Falls, NH
  • Average rainfall days in December: 12 days

The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is February (9.3 days).

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Average snowfall in December
Effingham Falls, NH

Average snowfall in December - Effingham Falls, NH
  • Average snowfall in December: 7.36"

The month with the highest snowfall is February (11.5").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Effingham Falls, NH

Average snowfall days in December - Effingham Falls, NH
  • Average snowfall days in December: 11.3 days

The month with the highest number of snowfall days is February (14.5 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
Effingham Falls, NH

Average daylight in December / Average sunshine in December - Effingham Falls, 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: 4h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

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Average sunshine days in December
Effingham Falls, NH

Average sunshine days in December - Effingham Falls, NH
  • Average sunshine days in December: 13.5 days

The month with the most sunshine days is September (16.8 days).
The month with the least sunshine days is April (10.6 days).

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Average UV index in December
Effingham Falls, NH

Average UV index in December - Effingham Falls, NH
  • 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, April, October, November and December (UV index 2).

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Average cloud cover in December
Effingham Falls, NH

Average cloud cover in December - Effingham Falls, NH
  • Average cloud cover in December: 50

The months with the most cloud cover are February and March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 36).

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Average visibility in December
Effingham Falls, NH

Average visibility in December - Effingham Falls, NH
  • Average visibility in December: 5mi

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

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Effingham Falls, New Hampshire, USA

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