Climate in Suffolk County, Massachusetts

Suffolk County, Massachusetts gets 48 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Suffolk County averages 48 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 201 sunny days per year in Suffolk County. The US average is 205 sunny days.

Suffolk County gets some kind of precipitation, on average, 131 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 83 degrees
Winter Low: the January low is 20
Rain: averages 48 inches of rain a year.
Snow: averages 48 inches of snow a year.

SPERLING'S COMFORT INDEX

Suffolk County ranks 50/100 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.

YOU SHOULD KNOW

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 Suffolk County with an average high temperature of 82.5°, which ranks it as warmer than most places in Massachusetts. In Suffolk County, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Suffolk County are June, August and July.

January has the coldest nighttime temperatures for Suffolk County with an average of 19.5°. This is warmer than most places in Massachusetts.

In Suffolk County, there are 11.1 days annually when the high temperature is over 90°, which is hotter than most places in Massachusetts.

In Suffolk County, there are 114.8 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Massachusetts.

In Suffolk County, there are 1.7 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Massachusetts.

March is the wettest month in Suffolk County with 4.6 inches of rain, and the driest month is February with 3.5 inches. The wettest season is Winter with 26% of yearly precipitation and 24% occurs in Spring, which is the driest season.

The annual rainfall of 47.7 inches in Suffolk County means that it is about average compared to other places in Massachusetts.

An annual snowfall of 48.4 inches in Suffolk County means that it is snowier than most places in Massachusetts.

January is the snowiest month in Suffolk County with 14.3 inches of snow, and 6 months of the year have significant snowfall.

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