December weather forecast
Peterborough, NH

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Weather in December

The first month of the winter, December, is still a cold month in Peterborough, New Hampshire, with an average temperature varying between 33.6°F (0.9°C) and 23°F (-5°C).

Temperature

Setting in of December comes with a decrease in the average high-temperature, moving from a frosty 44.8°F (7.1°C) in November to a wintry 33.6°F (0.9°C). Peterborough's nights in December experience an average temperature drop to a subzero cold 23°F (-5°C).

Humidity

The average relative humidity in December is 81%.

Rainfall

In December, in Peterborough, the rain falls for 7.5 days. Throughout December, 1.02" (26mm) of precipitation is accumulated. In Peterborough, during the entire year, the rain falls for 113.8 days and collects up to 12.44" (316mm) of precipitation.

Snowfall

Months with snowfall in Peterborough are January through May, October through December. In December, it is snowing for 7.5 days. Throughout December, 3.03" (77mm) of snow is accumulated. Throughout the year, in Peterborough, there are 45.3 snowfall days, and 18.78" (477mm) of snow is accumulated.

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 6:59 am and sunset at 4:14 pm. On the last day of December, in Peterborough, sunrise is at 7:18 am and sunset at 4:23 pm EST.

Sunshine

In Peterborough, the average sunshine in December is 4.6h.

UV index

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: During December, 2 as the daily maximum UV index converts into the following advice:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Around midday, solar radiation is most harmful; hence, exposure should be limited. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in Peterborough?

December temperatures in Peterborough, New Hampshire, vary between a high-temperature of 33.6°F (0.9°C) and a low-temperature of 23°F (-5°C).

What is the average humidity in December in Peterborough?

In December, the average relative humidity is 81%.

How many days does it rain in December in Peterborough?

In Peterborough, New Hampshire, during December, the rain falls for 7.5 days and regularly aggregates up to 1.02" (26mm) of precipitation.

How many days does it snow in December in Peterborough?

In Peterborough, New Hampshire, in December, snow falls for 7.5 days, with typically accumulated 3.03" (77mm) of snow.

What is the month with the shortest days in Peterborough?

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

How many hours of daylight does Peterborough have in December?

In December, the average day length is 9h and 5min.

What time are sunrise and sunset in December in Peterborough?

In December, on the first day of the month, sunrise is at 6:59 am and sunset at 4:14 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:23 pm EST.

How many hours of sunshine does Peterborough have in December?

In December, the average sunshine duration is 4.6h.

What is the month with the lowest UV index in Peterborough?

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

How high is the UV index in December in Peterborough?

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to 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
Peterborough, NH

Average temperature in December - Peterborough, NH
  • Average high temperature in December: 33.6°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (28.6°F).

  • Average low temperature in December: 23°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 (16°F).

Average pressure in December
Peterborough, NH

Average pressure in December - Peterborough, NH
  • Average pressure in December: 30.04"Hg

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in December
Peterborough, NH

Average wind speed in December - Peterborough, NH
  • Average wind speed in December: 7.8mph

The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in December
Peterborough, NH

Average humidity in December - Peterborough, NH
  • Average humidity in December: 81%

The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is April (73%).

Average rainfall in December
Peterborough, NH

Average rainfall in December - Peterborough, NH
  • Average rainfall in December: 1.02"

The wettest month (with the highest rainfall) is July (1.34").
The driest month (with the least rainfall) is September (0.71").

Average rainfall days in December
Peterborough, NH

Average rainfall days in December - Peterborough, NH
  • Average rainfall days in December: 7.5 days

The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is February (4.2 days).

Average snowfall in December
Peterborough, NH

Average snowfall in December - Peterborough, NH
  • Average snowfall in December: 3.03"

The month with the highest snowfall is November (3.9").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Peterborough, NH

Average snowfall days in December - Peterborough, NH
  • Average snowfall days in December: 7.5 days

The month with the highest number of snowfall days is February (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Peterborough, NH

Average daylight in December / Average sunshine in December - Peterborough, 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 4min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

Average sunshine days in December
Peterborough, NH

Average sunshine days in December - Peterborough, NH
  • Average sunshine days in December: 19.5 days

The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is June (14.3 days).

Average UV index in December
Peterborough, NH

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

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

Average cloud cover in December
Peterborough, NH

Average cloud cover in December - Peterborough, NH
  • Average cloud cover in December: 51

The month with the most cloud cover is March (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 36).

Average visibility in December
Peterborough, NH

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

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

Peterborough, New Hampshire, USA

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