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Climate in Massachusetts

Massachusetts, Massachusetts gets 49 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Massachusetts averages 47 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 197 sunny days per year in Massachusetts. The US average is 205 sunny days.

Massachusetts gets some kind of precipitation, on average, 125 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

Weather Highlights

Summer High: the July high is around 82 degrees
Winter Low: the January low is 16
Rain: averages 49 inches of rain a year
Snow: averages 47 inches of snow a year

Massachusetts ranks 44/100 for Comfort Index

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 54. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Climate Averages
  Massachusetts, MassachusettsUnited States
  48.5 in.38.1 in.
  47.0 in.27.8 in.
  124.9 days106.2 days
  197 days205 days
  373 ft.2443 ft.


Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

July is the hottest month for Massachusetts with an average high temperature of 81.5°, which ranks it as cooler than most states. In Massachusetts, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Massachusetts are June, August and July.

January has the coldest nighttime temperatures for Massachusetts with an average of 16.4°. This is colder than most of the U.S. states.

Massachusetts has 7.2 days annually when the high temperature is over 90°, which is cooler than most states in the U.S.

Massachusetts has 134.6 days annually when the nighttime low temperature falls below freezing, which is colder than most states in the U.S.

Massachusetts averages 4.6 days annually when the nighttime low temperature falls below freezing, which is colder than most states in the U.S.

March is the wettest month in Massachusetts with 4.5 inches of rain, and the driest month is February with 3.4 inches. The wettest season is Summer with 26% of yearly precipitation and 23% occurs in Spring, which is the driest season. Massachusetts's average annual rainfall of 48.5 inches indicates that it is wetter than most states in the United States.

May is the rainiest month in Massachusetts with 12.0 days of rain, and September is the driest month with only 8.9 rainy days. Massachusetts's annual average of 124.9 days with measurable rain is rainier than most states in the United States. The rainiest season is Summer when it rains 27% of the time and the driest is Winter with only a 23% chance of a rainy day.

Massachusetts's average annual snowfall of 47.0 inches indicates that it is snowier than most states in the United States.

January is the snowiest month in Massachusetts with 13.7 inches of snow, and 6 months of the year have significant snowfall.

  • Annual Rainfall (US Avg: 36.5")
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    Reviews for Massachusetts    73 Reviews
    About the truth os Springfield,Ma. - 1/23/2016
    What the hell are you talking abpout . Springfield,Ma. has s strick dog leash program. I hate to say but Florida has more problems than we do. You do not live here so... Read More

    Start Your Review of Massachusetts

    Secondary education - 6/14/2015
    Massachusetts offers exceptional college options from its highly regarded state system to a significant number of private colleges. Massachusetts is home to some... Read More

    Massachusetts - 6/3/2015
    Massachusetts, especially the Boston area, is a great place to live. Well over 50 colleges and universities within a 100 mile radius so the entire region is always... Read More

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