December weather forecast
Franklin, NH

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Weather in December

December ushers Franklin into the heart of the winter season with temperatures dropping to an average low of 21.7°F (-5.7°C). Providing a white Christmas, this month witnesses 6.54" (166mm) of snowfall. Although the cold intensifies, residents experience high humidity, attaining an average of 81%. The reduced daylight hours create longer nights, highlighting the wintry conditions. During this month, winds intensify bringing turbulent and frosty weather conditions but also contributing to a festive atmosphere.

Temperature

December's onset in Franklin corresponds with a shift in the average high-temperature, moving from a chilly 43.5°F (6.4°C) in November to an icy 32.4°F (0.2°C). In the month of December, Franklin records a consistent average low-temperature of 21.7°F (-5.7°C).

Humidity

In December, the average relative humidity in Franklin, New Hampshire, is 81%.

Rainfall

In Franklin, in December, during 9.5 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. In Franklin, during the entire year, the rain falls for 139.8 days and collects up to 28.19" (716mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Franklin, in December, during 8.9 snowfall days, 6.54" (166mm) of snow is typically accumulated. Throughout the year, in Franklin, there are 50.4 snowfall days, and 32.8" (833mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 0min of daylight.
On the first day of the month, sunrise is at 7:00 am and sunset at 4:11 pm. On the last day of December, in Franklin, sunrise is at 7:19 am and sunset at 4:20 pm EST.

Sunshine

The average sunshine in December in Franklin is 4.5h.

UV index

In December, the average daily maximum UV index in Franklin is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, a regular UV index of 2 translates into these guidelines:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in Franklin?

An average high-temperature, in December, in Franklin, is 32.4°F (0.2°C) and the average low-temperature is 21.7°F (-5.7°C).

What is the average humidity in December in Franklin?

The average relative humidity in December is 81%.

How many days does it rain in December in Franklin?

In Franklin, during December, the rain falls for 9.5 days and regularly aggregates up to 2.8" (71mm) of precipitation.

How many days does it snow in December in Franklin?

In Franklin, New Hampshire, in December, during 8.9 snowfall days, 6.54" (166mm) of snow is typically accumulated.

What is the month with the shortest days in Franklin?

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

How many hours of daylight does Franklin have in December?

The average day length in December in Franklin, New Hampshire, is 9h and 1min.

When is the sunrise / sunset in December in Franklin?

On the first day of December in Franklin, New Hampshire, sunrise is at 7:00 am and sunset at 4:11 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 4:20 pm EST.

How many hours of sunshine does Franklin have in December?

In Franklin, the average sunshine duration in December is 4.5h.

What is the UV index reading in December in Franklin?

In December, the average daily maximum UV index in Franklin, New Hampshire, is 2. A UV Index reading of 2, and below, represents a low health threat 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
Franklin, NH

Average temperature in December - Franklin, NH
  • Average high temperature in December: 32.4°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 (26.6°F).

  • Average low temperature in December: 21.7°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 (13.6°F).

Average pressure in December
Franklin, NH

Average pressure in December - Franklin, 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 (29.91"Hg).

Average wind speed in December
Franklin, NH

Average wind speed in December - Franklin, NH
  • Average wind speed in December: 6.8mph

The windiest months (with the highest average wind speed) are January and February (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in December
Franklin, NH

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

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

Average rainfall in December
Franklin, NH

Average rainfall in December - Franklin, NH
  • Average rainfall in December: 2.8"

The wettest month (with the highest rainfall) is October (3.23").
The driest month (with the least rainfall) is September (1.77").

Average rainfall days in December
Franklin, NH

Average rainfall days in December - Franklin, NH
  • Average rainfall days in December: 9.5 days

The month with the highest number of rainy days is May (14.5 days).
The month with the least rainy days is February (6.6 days).

Average snowfall in December
Franklin, NH

Average snowfall in December - Franklin, NH
  • Average snowfall in December: 6.54"

The month with the highest snowfall is February (8.78").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Franklin, NH

Average snowfall days in December - Franklin, NH
  • Average snowfall days in December: 8.9 days

The month with the highest number of snowfall days is January (11.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Franklin, 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 3min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).

Average sunshine days in December
Franklin, NH

Average sunshine days in December - Franklin, NH
  • Average sunshine days in December: 15.3 days

The month with the most sunshine days is September (17.3 days).
The month with the least sunshine days is March (12.5 days).

Average UV index in December
Franklin, NH

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

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).

Average cloud cover in December
Franklin, NH

Average cloud cover in December - Franklin, NH
  • Average cloud cover in December: 52

The months with the most cloud cover are February and March (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 36).

Average visibility in December
Franklin, NH

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

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

Franklin, New Hampshire, USA

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