2025 Compare Climate & Weather:
Boston, MA vs Union, NY

Highlights

On average, there are 154 sunny days per year in Union. Boston averages 200 sunny days per year. The US average is 205 sunny days.

Union, New York gets 38.5 inches of rain, on average, per year. Boston, Massachusetts gets 47.4 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Union averages 49.6 inches of snow per year. Boston averages 48.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Union, New York
Summer High: the July high is around 80.8 degrees
Winter Low: the January low is 12.8
Rain: averages 38.5 inches of rain a year
Snow: averages 49.6 inches of snow a year

Boston, Massachusetts
Summer High: the July high is around 82.4 degrees
Winter Low: the January low is 19.2
Rain: averages 47.4 inches of rain a year
Snow: averages 48.1 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Union is 6.6 (10=best), which means it is about average compared to other places in New York.

The annual BestPlaces Comfort Index for Boston is 6.9 (10=best), which means it is about average compared to other places in Massachusetts.

Today's Weather - Boston, MA

61°F

Today's Weather - Union, NY

53°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Boston / Union

July is the hottest month for Boston with an average high temperature of 82.4°, which ranks it as warmer than most places in Massachusetts. In Boston, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Boston are June, August and July.

July is the hottest month for Union with an average high temperature of 80.8°, which ranks it as cooler than most places in New York. In Union, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Union are June, August and July.

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

January has the coldest nighttime temperatures for Union with an average of 12.8°. This is colder than most places in New York.

In Boston, there are 11.3 days annually when the high temperature is over 90°, which is hotter than most places in Massachusetts.

In Union, there are 4.4 days annually when the high temperature is over 90°, which is cooler than most places in New York.

In Boston, there are 116.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Massachusetts.

In Union, there are 155.6 days annually when the nighttime low temperature falls below freezing, which is colder than most places in New York.

In Boston, there are 1.8 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Massachusetts.

In Union, there are 10.0 days annually when the nighttime low temperature falls below zero°, which is colder than most places in New York.

March is the wettest month in Boston with 4.6 inches of rain, and the driest month is February with 3.5 inches. The wettest season is Summer with 26% of yearly precipitation and 24% occurs in Spring, which is the driest season. The annual rainfall of 47.4 inches in Boston means that it is drier than most places in Massachusetts.


June is the wettest month in Union with 4.2 inches of rain, and the driest month is February with 2.1 inches. The wettest season is Autumn with 30% of yearly precipitation and 19% occurs in Spring, which is the driest season. The annual rainfall of 38.5 inches in Union means that it is drier than most places in New York.

May is the rainiest month in Boston with 12.4 days of rain, and September is the driest month with only 8.9 rainy days. There are 130.0 rainy days annually in Boston, which is rainier than most 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.

January is the rainiest month in Union with 13.1 days of rain, and August is the driest month with only 10.2 rainy days. There are 141.1 rainy days annually in Union, which is rainier than most places in New York. The rainiest season is Spring when it rains 26% of the time and the driest is Autumn with only a 24% chance of a rainy day.

An annual snowfall of 48.1 inches in Boston means that it is snowier than most places in Massachusetts.

An annual snowfall of 49.6 inches in Union means that it is about average compared to other places in New York.

January is the snowiest month in Boston with 14.2 inches of snow, and 6 months of the year have significant snowfall.

January is the snowiest month in Union with 14.4 inches of snow, and 6 months of the year have significant snowfall.