Bristol County, MA Climate

Bristol, MA County experiences a humid continental climate. Summers are hot and humid with temperatures often reaching into the 80s and 90s while winters can be bitterly cold with temperatures falling below 0 degrees Fahrenheit. Average annual precipitation is around 40 inches, with snowfall ranging from 35 to 45 inches per year. The spring season is generally moderate; however, thunderstorms are not uncommon during this time of year as well as in the late summer months. Weather conditions can change quickly throughout the seasons so it’s important to be prepared for any kind of weather when visiting Bristol, MA County!

Bristol County, Massachusetts gets 50 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Bristol County averages 37 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 Bristol County. The US average is 205 sunny days.

Bristol County gets some kind of precipitation, on average, 124 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 19
Rain: averages 50 inches of rain a year
Snow: averages 37 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Bristol County is 7.0 (10=best), which means it is more comfortable than most places in Massachusetts.

9.1 Summer - 5.1 Winter

June, September and August are the most pleasant months in Bristol County, while January and February are the least comfortable months.

Climate	Bristol, Massachusetts	United States
	49.9 in.	38.1 in.
	36.5 in.	27.8 in.
	123.7 days	106.2 days
	201 days	205 days
	82.3°	85.8°
	19.2°	21.7°
	7	7
	3.5	4.3
	98 ft.	2443 ft.

Climate

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 Bristol County with an average high temperature of 82.3°, which ranks it as about average compared to other places in Massachusetts. In Bristol County, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Bristol County are June, August and September.

In Bristol County, there are 7.6 days annually when the high temperature is over 90°, which is about average compared to other places in Massachusetts.

January has the coldest nighttime temperatures for Bristol County with an average of 19.2°. This is about average compared to other places in Massachusetts.

In Bristol County, there are 122.4 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Massachusetts.

In Bristol County, there are 1.9 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Massachusetts.

The humidity is usually comfortable in Bristol County but some summer months can be sticky or muggy. July is the most humid month, though humidity is low for most of the year. The most humid months are July, August and June.

March is the wettest month in Bristol County with 5.1 inches of rain, and the driest month is February with 3.6 inches. The wettest season is Summer with 27% of yearly precipitation and 23% occurs in Autumn, which is the driest season. The annual rainfall of 49.9 inches in Bristol County means that it is wetter than most places in Massachusetts.

May is the rainiest month in Bristol County with 11.8 days of rain, and September is the driest month with only 9.0 rainy days. There are 123.7 rainy days annually in Bristol County, which is about average compared to other places in Massachusetts. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 23% chance of a rainy day.

An annual snowfall of 36.5 inches in Bristol County means that it is less snowy than most places in Massachusetts. January is the snowiest month in Bristol County with 10.8 inches of snow, and 6 months of the year have significant snowfall.

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