2025 Compare Climate & Weather:
Somerville, MA vs Piscataway, NJ

Highlights

On average, there are 206 sunny days per year in Piscataway. Somerville averages 197 sunny days per year. The US average is 205 sunny days.

Piscataway, New Jersey gets 48.2 inches of rain, on average, per year. Somerville, Massachusetts gets 48 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Piscataway averages 23.1 inches of snow per year. Somerville averages 51.4 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Piscataway, New Jersey
Summer High: the July high is around 86.2 degrees
Winter Low: the January low is 22.2
Rain: averages 48.2 inches of rain a year
Snow: averages 23.1 inches of snow a year

Somerville, Massachusetts
Summer High: the July high is around 82.4 degrees
Winter Low: the January low is 19.1
Rain: averages 48 inches of rain a year
Snow: averages 51.4 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Piscataway is 7.3 (10=best), which means it is one of the most pleasant places in New Jersey.

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

Today's Weather - Somerville, MA

62°F

Today's Weather - Piscataway, NJ

66°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Somerville / Piscataway

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

July is the hottest month for Piscataway with an average high temperature of 86.2°, which ranks it as warmer than most places in New Jersey. In Piscataway, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Piscataway are September, June and May.

January has the coldest nighttime temperatures for Somerville with an average of 19.1°. This is about average compared to other places in Massachusetts.

January has the coldest nighttime temperatures for Piscataway with an average of 22.2°. This is about average compared to other places in New Jersey.

In Somerville, there are 10.6 days annually when the high temperature is over 90°, which is hotter than most places in Massachusetts.

In Piscataway, there are 20.7 days annually when the high temperature is over 90°, which is hotter than most places in New Jersey.

In Somerville, there are 115.8 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Massachusetts.

In Piscataway, there are 107.5 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in New Jersey.

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

In Piscataway, there are 0.7 days annually when the nighttime low temperature falls below zero°, which is colder than most places in New Jersey.

March is the wettest month in Somerville with 4.7 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 48.0 inches in Somerville means that it is about average compared to other places in Massachusetts.


July is the wettest month in Piscataway with 5.2 inches of rain, and the driest month is February with 2.8 inches. The wettest season is Autumn with 28% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 48.2 inches in Piscataway means that it is wetter than most places in New Jersey.

May is the rainiest month in Somerville with 12.8 days of rain, and September is the driest month with only 9.2 rainy days. There are 133.6 rainy days annually in Somerville, which is one of the rainiest 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.

May is the rainiest month in Piscataway with 11.5 days of rain, and February is the driest month with only 8.4 rainy days. There are 116.6 rainy days annually in Piscataway, which is about average compared to other places in New Jersey. 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 51.4 inches in Somerville means that it is snowier than most places in Massachusetts.

An annual snowfall of 23.1 inches in Piscataway means that it is about average compared to other places in New Jersey.

January is the snowiest month in Somerville with 15.1 inches of snow, and 6 months of the year have significant snowfall.

February is the snowiest month in Piscataway with 7.8 inches of snow, and 5 months of the year have significant snowfall.