Merrimack County, New Hampshire Weather by Month

By | December 18, 2023

Merrimack County, located in central New Hampshire, experiences four distinct seasons with variations in temperature and precipitation.

January – March (Winter):

  • Winters in Merrimack County are cold, with January typically being the coldest month.
  • Daytime temperatures often range from the 20s to 30s Fahrenheit, and nighttime temperatures can drop well below freezing.┬áSee for climate and weather in Concord, New Hampshire.
  • Snow is common during these months, contributing to winter recreational activities. Winter storms may bring significant snowfall.
  • The region experiences a winter wonderland, and activities like skiing and snowmobiling are popular.

April – June (Spring):

  • Spring brings a gradual warming of temperatures, and the landscape begins to awaken from winter dormancy.
  • Daytime highs generally range from the 40s to 60s Fahrenheit, and nights become milder.
  • Spring is a transition period, and while snow is still possible in April, it gives way to rain showers and the blooming of flowers in May and June.
  • Outdoor activities such as hiking and exploring nature become more popular during this season.

July – September (Summer):

  • Summer in Merrimack County is warm, with daytime temperatures often reaching into the 70s and 80s Fahrenheit.
  • July and August are typically the warmest months, with occasional days surpassing 90 degrees Fahrenheit.
  • Summer is the wettest season, with increased chances of rain and thunderstorms. Humidity levels can rise during this time.
  • The warm weather makes it ideal for outdoor pursuits like hiking, camping, and enjoying the lakes and rivers in the region.

October – December (Fall):

  • Fall is characterized by a gradual cooling of temperatures and the vibrant changing of the leaves.
  • Daytime highs range from the 50s to 60s Fahrenheit in October, dropping further in November and December.
  • The fall foliage, especially in the nearby White Mountains, attracts tourists, and outdoor activities continue with a focus on enjoying the picturesque scenery.
  • Frost becomes more common, signaling the approach of winter.

Additional Considerations:

  • Merrimack County’s weather can be influenced by its diverse geography, including hills, forests, and proximity to the White Mountains. Microclimates may exist within the county.
  • The region experiences all forms of precipitation, including rain, snow, and sleet, so it’s advisable to be prepared for changing weather conditions.
  • Local events and festivals often coincide with the changing seasons, celebrating activities such as maple syrup production in spring and fall foliage in autumn.

For the most accurate and up-to-date weather information, it’s recommended to consult local weather forecasts, meteorological sources, or the National Weather Service. Weather patterns can vary from year to year, and extreme events may impact the typical seasonal weather.

Merrimack County, New Hampshire