December weather forecast
Pelham, NH

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Weather in December

December is one of the coldest months, with temperature averages oscillating from lows of 37.9°F (3.3°C) to highs of 27.3°F (-2.6°C). A substantial amount of snow, 4.49" (114mm) over 5.3 days, graces the city, intensifying the winter effect brought on in November. At this time, shorter daylight hours and decreased sunshine duration become more prominent. Despite experiencing only 4.9 hours of sun in a day, Pelham in its wintry cloak is a delight to behold. While the year ends, the weather cycle completes a full circle, reverting to its wintery origins.

Temperature

With the onset of December, Pelham experiences a modest temperature adjustment, with the average high-temperature receding from a frosty 48.2°F (9°C) in November to an icy 37.9°F (3.3°C). Pelham's average low-temperature in the month of December is recorded at a freezing cold 27.3°F (-2.6°C).

Humidity

In December, the average relative humidity is 77%.

Rainfall

December is the month with the most rainfall. Rain falls for 10.6 days and accumulates 2.87" (73mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Pelham, in December, snow falls for 5.3 days, with typically accumulated 4.49" (114mm) of snow. Throughout the year, there are 31.9 snowfall days, and 20.94" (532mm) 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 6:56 am and sunset at 4:12 pm. On the last day of December, sunrise is at 7:15 am and sunset at 4:21 pm EST.

Sunshine

In Pelham, the average sunshine in December is 4.9h.

UV index

January through March, November and 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 ordinary individuals.
Note: A maximum daily UV index of 2 during December morphs into the following directions:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

The average high-temperature and low-temperature during December are 37.9°F (3.3°C) and 27.3°F (-2.6°C) respectively. In July, the average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 86°F (30°C).

What is the average humidity in December?

The average relative humidity in December is 77%.

What is the rainiest month?

The month with the most rainfall is December, when the rain falls for 10.6 days and typically aggregates up to 2.87" (73mm) of precipitation.

How many days does it rain in December?

In Pelham, in December, it is raining for 10.6 days, with typically 2.87" (73mm) of accumulated precipitation.

How much does it snow in December?

In December, it is snowing for 5.3 days. Throughout December, 4.49" (114mm) of snow is accumulated.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 6min of daylight.

How many hours of daylight does Pelham have in December?

The average day length in December is 9h and 6min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 6:56 am and sunset at 4:12 pm. On the last day of the month, in Pelham, sunrise is at 7:15 am and sunset at 4:21 pm EST.

How many hours of sunshine does Pelham have in December?

In Pelham, the average sunshine duration in December is 4.9h.

What are the months with the lowest UV index?

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

What is the UV index reading in December?

In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal hazard to health 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
Pelham, NH

Average temperature in December - Pelham, NH
  • Average high temperature in December: 37.9°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (32.2°F).

  • Average low temperature in December: 27.3°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).

Average pressure in December
Pelham, NH

Average pressure in December - Pelham, 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).

Average wind speed in December
Pelham, NH

Average wind speed in December - Pelham, NH
  • Average wind speed in December: 8.6mph

The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in December
Pelham, NH

Average humidity in December - Pelham, NH
  • Average humidity in December: 77%

The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (71%).

Average rainfall in December
Pelham, NH

Average rainfall in December - Pelham, NH
  • Average rainfall in December: 2.87"

The wettest month (with the highest rainfall) is December (2.87").
The driest month (with the least rainfall) is September (1.3").

Average rainfall days in December
Pelham, NH

Average rainfall days in December - Pelham, NH
  • Average rainfall days in December: 10.6 days

The month with the highest number of rainy days is May (15.9 days).
The months with the least rainy days are January and February (7.6 days).

Average snowfall in December
Pelham, NH

Average snowfall in December - Pelham, NH
  • Average snowfall in December: 4.49"

The month with the highest snowfall is February (5.87").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Pelham, NH

Average snowfall days in December - Pelham, NH
  • Average snowfall days in December: 5.3 days

The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Pelham, 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 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in December
Pelham, NH

Average sunshine days in December - Pelham, NH
  • Average sunshine days in December: 16.5 days

The month with the most sunshine days is September (17.9 days).
The month with the least sunshine days is May (13.5 days).

Average UV index in December
Pelham, NH

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

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

Average cloud cover in December
Pelham, NH

Average cloud cover in December - Pelham, 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 31).

Average visibility in December
Pelham, NH

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

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

Pelham, New Hampshire, USA

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