January weather forecast
New Hampshire, USA

January is the coldest month of the year in New Hampshire and is marked by a stark contrast between its northern and southern regions. The northern wilderness often experiences temperatures below 0°F, while the southern parts have average lows ranging from -4°F to 15°F. In comparison to the milder temperatures of December, January sees a significant drop, and the frigid weather persists into February.

Mount Washington, part of the state's famed White Mountains range, is notable for recording some of the lowest temperatures, including the state's lowest of -47°F on January 29, 1934. Snowfall during this month is heavy, contributing to the overall accumulation of 60" to 100" statewide, with even higher amounts in the mountainous regions.

Strong arctic winds sweep across the northern areas, while the mountain ranges help protect the southern region from these cold fronts. The Atlantic Ocean's influence moderates temperatures in the southeastern part, but the overall climate remains cold and icy, characterized by frequent snowstorms. Skiing and snowboarding enthusiasts will find the state's northern regions particularly appealing during this time, as they are some of the best places in the country for winter sports.

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• Manchester - January »
  The month with the least rainfall in Manchester is January, when the rain falls for 4.1 days and typically collects 0.75" of precipitation. The months with the lowest UV index in Manchester are January through March, November and December, with an average maximum UV index of 2.
• Nashua - January »
  In Nashua in January, it is raining for 3.5 days, with typically 0.55" of accumulated precipitation. In Nashua, during January, snow falls for 6.5 days and regularly aggregates up to 1.1" of snow.
• Concord - January »
  In Concord in January, during 10.8 snowfall days, 7.09" of snow is typically accumulated. In Concord, during January, snow falls for 10.8 days and regularly aggregates up to 7.09" of snow.
• Derry - January »
  The month with the least rainfall in Derry is January, when the rain falls for 4.1 days and typically collects 0.75" of precipitation. In Derry during January, the rain falls for 4.1 days and regularly aggregates up to 0.75" of precipitation.
• Dover - January »
  In Dover, in January, snow falls for 7.4 days, with typically accumulated 3.35" of snow. In Dover, in January, snow falls for 7.4 days, with typically accumulated 3.35" of snow.
• Rochester - January »
  In Rochester in January, snow falls for 10.4 days, with typically accumulated 6.26" of snow. 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 - January »
  January in Salem, New Hampshire initiates the year with abundant cloud cover and a fair share of snowfall, comprising a snowfall of 3.46" across 8.5 days. In Salem, in January, during 8.5 snowfall days, 3.46" of snow is typically accumulated.
• Merrimack - January »
  In Merrimack in January, during 4.1 rainfall days, 0.75" of precipitation is typically accumulated. The months with the lowest UV index in Merrimack, New Hampshire, are January through March, November and December, with an average maximum UV index of 2.
• Londonderry - January »
  The month with the least rainfall in Londonderry, New Hampshire, is January, when the rain falls for 4.1 days and typically collects 0.75" of precipitation. January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Londonderry.
• Keene - January »
  The month with the most snowfall in Keene is January, when snow falls for 9.2 days and typically aggregates up to 2.64" of snow. In Keene during January, snow falls for 9.2 days and regularly aggregates up to 2.64" of snow.
• Bedford - January »
  The month with the least rainfall in Bedford is January, when the rain falls for 4.1 days and typically collects 0.75" of precipitation. In Bedford, in January, snow falls for 7.1 days, with typically accumulated 2.4" of snow.