2025 Compare Climate & Weather:
Sudbury, MA vs Hamilton, NY

Highlights

On average, there are 160 sunny days per year in Hamilton. Sudbury averages 199 sunny days per year. The US average is 205 sunny days.

Hamilton, New York gets 42.5 inches of rain, on average, per year. Sudbury, Massachusetts gets 48.5 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Hamilton averages 86.3 inches of snow per year. Sudbury averages 50.3 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Hamilton, New York
Summer High: the July high is around 78.9 degrees
Winter Low: the January low is 11.4
Rain: averages 42.5 inches of rain a year
Snow: averages 86.3 inches of snow a year

Sudbury, Massachusetts
Summer High: the July high is around 82.6 degrees
Winter Low: the January low is 15.5
Rain: averages 48.5 inches of rain a year
Snow: averages 50.3 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Hamilton is 6.1 (10=best), which means it is one of the least comfortable places in New York.

The annual BestPlaces Comfort Index for Sudbury is 6.8 (10=best), which means it is less comfortable than most places in Massachusetts.

Today's Weather - Sudbury, MA

55°F

Today's Weather - Hamilton, NY

54°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Sudbury / Hamilton

July is the hottest month for Sudbury with an average high temperature of 82.6°, which ranks it as warmer than most places in Massachusetts. In Sudbury, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Sudbury are June, August and September.

July is the hottest month for Hamilton with an average high temperature of 78.9°, which ranks it as one of the coolest places in New York. In Hamilton, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Hamilton are August, July and June.

January has the coldest nighttime temperatures for Sudbury with an average of 15.5°. This is colder than most places in Massachusetts.

January has the coldest nighttime temperatures for Hamilton with an average of 11.4°. This is colder than most places in New York.

In Sudbury, there are 9.6 days annually when the high temperature is over 90°, which is hotter than most places in Massachusetts.

In Hamilton, there are 2.7 days annually when the high temperature is over 90°, which is cooler than most places in New York.

In Sudbury, there are 141.2 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Massachusetts.

In Hamilton, there are 160.4 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in New York.

In Sudbury, there are 4.5 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Massachusetts.

In Hamilton, there are 15.0 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in New York.

March is the wettest month in Sudbury 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. The annual rainfall of 48.5 inches in Sudbury means that it is wetter than most places in Massachusetts.


June is the wettest month in Hamilton with 4.5 inches of rain, and the driest month is February with 2.5 inches. The wettest season is Autumn with 29% of yearly precipitation and 20% occurs in Spring, which is the driest season. The annual rainfall of 42.5 inches in Hamilton means that it is drier than most places in New York.

May is the rainiest month in Sudbury with 12.7 days of rain, and September is the driest month with only 9.2 rainy days. There are 130.5 rainy days annually in Sudbury, 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 24% chance of a rainy day.

January is the rainiest month in Hamilton with 17.5 days of rain, and August is the driest month with only 11.8 rainy days. There are 170.1 rainy days annually in Hamilton, which is one of the rainiest places in New York. The rainiest season is Spring when it rains 28% of the time and the driest is Autumn with only a 22% chance of a rainy day.

An annual snowfall of 50.3 inches in Sudbury means that it is snowier than most places in Massachusetts.

An annual snowfall of 86.3 inches in Hamilton means that it is snowier than most places in New York.

January is the snowiest month in Sudbury with 14.7 inches of snow, and 6 months of the year have significant snowfall.

January is the snowiest month in Hamilton with 22.6 inches of snow, and 7 months of the year have significant snowfall.