December weather forecast
Walpole, NH

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Weather in December

The first month of the winter, December, is still a cold month in Walpole, New Hampshire, with temperature in the range of an average low of 22.3°F (-5.4°C) and an average high of 32.9°F (0.5°C).

Temperature

December implies a gentle temperature shift, with average high-temperatures reducing from November's frosty 44.1°F (6.7°C) to a wintry 32.9°F (0.5°C). In Walpole, the December nights cool down to an average low of 22.3°F (-5.4°C).

Humidity

The average relative humidity in December is 82%.

Rainfall

In December, in Walpole, New Hampshire, the rain falls for 7.1 days. Throughout December, 1.61" (41mm) of precipitation is accumulated. Throughout the year, there are 113.5 rainfall days, and 16.77" (426mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Walpole. In Walpole, in December, during 4.8 snowfall days, 3.31" (84mm) of snow is typically accumulated. In Walpole, New Hampshire, during the entire year, snow falls for 31 days and aggregates up to 16.22" (412mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 6min of daylight.
On the first day of the month, sunrise is at 7:02 am and sunset at 4:15 pm. On the last day of December, in Walpole, New Hampshire, sunrise is at 7:21 am and sunset at 4:24 pm EST.

Sunshine

In December, the average sunshine is 4.8h.

UV index

The months with the lowest UV index in Walpole, New Hampshire, are January through March, October through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the average person.
Note: The daily high UV index of 2 during December translates into the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
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Frequently asked questions

How cold is it in Walpole in December?

In December, the average high-temperature and low-temperature in Walpole, New Hampshire, are 32.9°F (0.5°C) and 22.3°F (-5.4°C) respectively.

What is the average humidity in December in Walpole?

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

How much does it rain in Walpole in December?

In Walpole, New Hampshire, during December, the rain falls for 7.1 days and regularly aggregates up to 1.61" (41mm) of precipitation.

How much does it snow in Walpole in December?

In Walpole, New Hampshire, during December, snow falls for 4.8 days and regularly aggregates up to 3.31" (84mm) of snow.

What is the month with the shortest days in Walpole?

The month with the shortest days is December, with an average of 9h and 6min of daylight.

How many hours of daylight does Walpole have in December?

The average day length in December is 9h and 4min.

When is the sunrise / sunset in December in Walpole?

In December, on the first day of the month, sunrise is at 7:02 am and sunset at 4:15 pm. On the last day of the month, in Walpole, sunrise is at 7:21 am and sunset at 4:24 pm EST.

How many hours of sunshine does Walpole have in December?

The average sunshine duration in December in Walpole is 4.8h.

When is the lowest UV index in Walpole?

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Walpole.

How high is the UV index in December in Walpole?

In Walpole, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health risk from 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
Walpole, NH

Average temperature in December - Walpole, NH
  • Average high temperature in December: 32.9°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (27.5°F).

  • Average low temperature in December: 22.3°F

The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (14.5°F).

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Average pressure in December
Walpole, NH

Average pressure in December - Walpole, NH
  • Average pressure in December: 30.05"Hg

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in December
Walpole, NH

Average wind speed in December - Walpole, NH
  • Average wind speed in December: 7.1mph

The windiest months (with the highest average wind speed) are January, February and March (7.6mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in December
Walpole, NH

Average humidity in December - Walpole, NH
  • Average humidity in December: 82%

The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is April (74%).

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Average rainfall in December
Walpole, NH

Average rainfall in December - Walpole, NH
  • Average rainfall in December: 1.61"

The wettest month (with the highest rainfall) is October (1.77").
The driest months (with the least rainfall) are January and March (1.06").

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Average rainfall days in December
Walpole, NH

Average rainfall days in December - Walpole, NH
  • Average rainfall days in December: 7.1 days

The month with the highest number of rainy days is July (12.1 days).
The month with the least rainy days is January (4.5 days).

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Average snowfall in December
Walpole, NH

Average snowfall in December - Walpole, NH
  • Average snowfall in December: 3.31"

The month with the highest snowfall is February (4.69").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Walpole, NH

Average snowfall days in December - Walpole, NH
  • Average snowfall days in December: 4.8 days

The month with the highest number of snowfall days is February (7.9 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
Walpole, NH

Average daylight in December / Average sunshine in December - Walpole, NH
  • Average daylight in December: 9h and 1min

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 6min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

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Average sunshine days in December
Walpole, NH

Average sunshine days in December - Walpole, NH
  • Average sunshine days in December: 20 days

The month with the most sunshine days is November (20.5 days).
The months with the least sunshine days are April and June (16 days).

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Average UV index in December
Walpole, NH

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

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

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Average cloud cover in December
Walpole, NH

Average cloud cover in December - Walpole, NH
  • Average cloud cover in December: 49

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 34).

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Average visibility in December
Walpole, NH

Average visibility in December - Walpole, NH
  • Average visibility in December: 5mi

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

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Walpole, New Hampshire, USA

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