December weather forecast
Rollinsford, NH

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Weather in December

The first month of the winter, December, is also an icy month in Rollinsford, New Hampshire, with an average temperature varying between 35.6°F (2°C) and 24.6°F (-4.1°C).

Temperature

Rollinsford's December weather features a mild decline in high-temperatures, reducing from a frosty 46°F (7.8°C) in November to a wintry 35.6°F (2°C). The average low-temperature in Rollinsford during December nights is a freezing cold 24.6°F (-4.1°C).

Humidity

In Rollinsford, the average relative humidity in December is 80%.

Rainfall

The wettest months in Rollinsford are October and December, with an average 3.11" (79mm) of rainfall.

Snowfall

Months with snowfall in Rollinsford are January through May, October through December. The month with the most snowfall in Rollinsford, New Hampshire, is December, when snow falls for 7.2 days and typically aggregates up to 6.69" (170mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 0min of daylight.
On the first day of December in Rollinsford, New Hampshire, sunrise is at 6:56 am and sunset at 4:08 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:17 pm EST.

Sunshine

The average sunshine in December is 4.8h.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum UV index of 2 in December translates into the following recommendations:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
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Frequently asked questions

How cold is December in Rollinsford?

In December, the average high-temperature and low-temperature in Rollinsford are 35.6°F (2°C) and 24.6°F (-4.1°C) respectively.

What is the average humidity in December in Rollinsford?

The average relative humidity in December in Rollinsford, New Hampshire, is 80%.

What is the rainiest month in Rollinsford?

The wettest months in Rollinsford, New Hampshire, are October and December, with an average 3.11" (79mm) of rainfall.

How much does it rain in Rollinsford in December?

In Rollinsford, in December, during 10 rainfall days, 3.11" (79mm) of precipitation is typically accumulated.

When does it snow the most in Rollinsford?

The month with the most snowfall is December, when snow falls for 7.2 days and typically aggregates up to 6.69" (170mm) of snow.

How many days does it snow in December in Rollinsford?

In Rollinsford, New Hampshire, in December, during 7.2 snowfall days, 6.69" (170mm) of snow is typically accumulated.

What is the month with the shortest days in Rollinsford?

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

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

The average day length in December in Rollinsford, New Hampshire, is 9h and 2min.

When are sunrise and sunset in December in Rollinsford?

On the first day of December in Rollinsford, sunrise is at 6:56 am and sunset at 4:08 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:17 pm EST.

How long on average sun shines in December in Rollinsford?

In Rollinsford, New Hampshire, the average sunshine duration in December is 4.8h.

What are the months with the lowest UV index in Rollinsford?

The months with the lowest UV index in Rollinsford are January through March, November and December, with an average maximum UV index of 2.

How high is the UV index in December in Rollinsford?

The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health threat 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
Rollinsford, NH

Average temperature in December - Rollinsford, NH
  • Average high temperature in December: 35.6°F

The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in December: 24.6°F

The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).

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Average pressure in December
Rollinsford, NH

Average pressure in December - Rollinsford, 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 (29.92"Hg).

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Average wind speed in December
Rollinsford, NH

Average wind speed in December - Rollinsford, NH
  • Average wind speed in December: 8.5mph

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in December
Rollinsford, NH

Average humidity in December - Rollinsford, NH
  • Average humidity in December: 80%

The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is April (75%).

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Average rainfall in December
Rollinsford, NH

Average rainfall in December - Rollinsford, NH
  • Average rainfall in December: 3.11"

The wettest months (with the highest rainfall) are October and December (3.11").
The driest month (with the least rainfall) is September (1.5").

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Average rainfall days in December
Rollinsford, NH

Average rainfall days in December - Rollinsford, NH
  • Average rainfall days in December: 10 days

The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is February (6.8 days).

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Average snowfall in December
Rollinsford, NH

Average snowfall in December - Rollinsford, NH
  • Average snowfall in December: 6.69"

The month with the highest snowfall is December (6.69").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Rollinsford, NH

Average snowfall days in December - Rollinsford, NH
  • Average snowfall days in December: 7.2 days

The month with the highest number of snowfall days is January (10.4 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
Rollinsford, NH

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

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in December
Rollinsford, NH

Average sunshine days in December - Rollinsford, NH
  • Average sunshine days in December: 16.1 days

The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is April (13.3 days).

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Average UV index in December
Rollinsford, NH

Average UV index in December - Rollinsford, NH
  • Average UV index in December: 2

The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in December
Rollinsford, NH

Average cloud cover in December - Rollinsford, NH
  • Average cloud cover in December: 47

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in December
Rollinsford, NH

Average visibility in December - Rollinsford, NH
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, October, November and December (6mi).
The months with the lowest visibility are May, June, July, August and September (5mi).

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Rollinsford, New Hampshire, USA

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