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Swanzey (NH) Climate by Month

The climate in Swanzey is marked by big temperature swings throughout the year. Temperatures range from warm during the warmest months to very cold in the cooler months. It also has a relatively rain/snowy climate with high levels of precipitation. Let’s explore the climate details in depth to provide you with a complete overview.

Average day and night temperature

In Swanzey, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a comfortable 28°C in July to a very cold 0°C in January. Nighttime temperatures can drop, with averages reaching -11°C in January.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Swanzey experiences significant rain/snowfall throughout the year, averaging 1216 mm of precipitation annually. The amount of precipitation varies moderately throughout the year. The wettest month, June, sees around 130 mm of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, April, still receives a respectable 76 mm of rainfall.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

In Swanzey, summer days are longer and more sunny, with daily sunshine hours peaking at 9.8 hours in July. As the darker season arrives, the brightness of the sun becomes less. November sees a soft sun for only 4.2 hours.

Monthly hours of sunshine

Data from: Concord, the United States of America (71 KM, 44 Miles).

Daily hours of sunshine

Data from: Concord, the United States of America (71 KM, 44 Miles).

The best time of year to visit Swanzey in the United States of America

During the months of May, June and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Which is the warmest month in Swanzey?
    July has an average maximum temperature of 28°C and is the warmest month of the year.
  • Which is the coldest month in Swanzey?
    The coldest month is January with an average maximum temperature of 0°C.
  • Which is the wettest month in Swanzey?
    June tops the wettest month list with 130 mm of rainfall.
  • Which is the driest month in Swanzey?
    April is the driest month with 76 mm of precipitation.
  • Which is the sunniest month in Swanzey?
    July is the sunniest month with an average of 295 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for Swanzey (NH)

    Fri   Nov 22
    9°C | 3°C
    SE 18 km/h
    9.9 mm
    broken clouds and rain

    broken clouds and rain

    Sat   Nov 23
    6°C | 2°C
    NW 18 km/h
    5.8 mm
    overcast and rain

    overcast and rain

    Sun   Nov 24
    7°C | -1°C
    W 22 km/h
    partly cloudy and no rain

    partly cloudy and no rain