December weather forecast
New Hampshire, USA

December marks the official beginning of winter in New Hampshire, with cold temperatures, short days, and frequent snowfall. Average lows for the month fall from 17°F (-8.3°C) to 25°F (-3.9°C), and average highs are between 32°F (0°C) to 40°F (4.4°C). This month represents a continuation of the declining temperatures that began in the fall, culminating in the coldest season of the year.

Snowfall becomes widespread in December, accumulating from 60" (1524mm) to 100" (2540mm) statewide, with even higher amounts in the mountainous areas. The White Mountains and the North Country, in particular, see heavy snowfall, making them prime locations for winter sports, such as skiing and snowboarding.

Rainfall decreases in favor of snow, and the chance of ice and freezing rain becomes more common. The moderating influence of the Atlantic Ocean diminishes, and the northern mountain ranges play a more significant role in shaping the weather, protecting the southern part of the state from some of the more severe cold fronts.

Outdoor activities focus on winter recreation, with numerous ski resorts and winter sports facilities opening for the season. The snowy landscape provides opportunities for snowmobiling, ice skating, and other cold-weather pursuits.

December's weather contrasts sharply with the mild conditions of November, as temperatures continue to drop and snowfall becomes a regular occurrence. The transformation from late fall to winter is complete, and New Hampshire embraces the season with a host of winter activities and festivities.

The short days and often overcast skies of December create a unique atmosphere, reflecting the state's northern latitude and continental climate. It is a month of contrasts, offering both the challenges of winter weather and the beauty of a snow-covered landscape. The Granite State welcomes winter with open arms, providing residents and visitors alike with a wide variety of outdoor opportunities and seasonal experiences.

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• Manchester - December »
  The month with the shortest days in Manchester is December, with an average of 9h and 6min of daylight. In Manchester, in December, during 6.3 rainfall days, 1.1" (28mm) of precipitation is typically accumulated.
• Nashua - December »
  In Nashua in December, snow falls for 3.8 days, with typically accumulated 1.26" (32mm) of snow. The months with the lowest UV index in Nashua are January, February, November and December, with an average maximum UV index of 2.
• Concord - December »
  In Concord, in December, during 7.9 snowfall days, 6.14" (156mm) of snow is typically accumulated. In Concord, in December, snow falls for 7.9 days, with typically accumulated 6.14" (156mm) of snow.
• Derry - December »
  The month with the most snowfall in Derry is December, when snow falls for 4 days and typically aggregates up to 2.99" (76mm) of snow. In Derry, during December, snow falls for 4 days and regularly aggregates up to 2.99" (76mm) of snow.
• Dover - December »
  January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Dover, New Hampshire. In Dover, in December, during 5.4 snowfall days, 3.27" (83mm) of snow is typically accumulated.
• Rochester - December »
  The month with the shortest days in Rochester is December, with an average of 9h and 0min of daylight. January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Rochester, New Hampshire.
• Salem - December »
  In Salem during December, snow falls for 5.3 days and regularly aggregates up to 4.49" (114mm) of snow. January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Salem, New Hampshire.
• Merrimack - December »
  In Merrimack, during December, snow falls for 4 days and regularly aggregates up to 2.99" (76mm) of snow. In Merrimack, during December, the rain falls for 6.3 days and regularly aggregates up to 1.1" (28mm) of precipitation.
• Londonderry - December »
  The month with the most snowfall in Londonderry is December, when snow falls for 4 days and typically aggregates up to 2.99" (76mm) of snow. The month with the shortest days in Londonderry is December, with an average of 9h and 6min of daylight.
• Keene - December »
  In Keene, in December, during 7.4 snowfall days, 1.61" (41mm) of snow is typically accumulated. December has the shortest days of the year in Keene, New Hampshire, with an average of 9h and 6min of daylight.
• Bedford - December »
  December has the shortest days of the year in Bedford, New Hampshire, with an average of 9h and 6min of daylight. In Bedford, in December, it is raining for 6.3 days, with typically 1.1" (28mm) of accumulated precipitation.