2025 Compare Climate & Weather:
Port Jefferson Station, NY vs Trenton, NJ

Highlights

On average, there are 201 sunny days per year in Trenton. Port Jefferson Station averages 210 sunny days per year. The US average is 205 sunny days.

Trenton, New Jersey gets 47.5 inches of rain, on average, per year. Port Jefferson Station, New York gets 47.3 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Trenton averages 19.9 inches of snow per year. Port Jefferson Station averages 28.3 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Trenton, New Jersey
Summer High: the July high is around 85.4 degrees
Winter Low: the January low is 22.1
Rain: averages 47.5 inches of rain a year
Snow: averages 19.9 inches of snow a year

Port Jefferson Station, New York
Summer High: the July high is around 83.3 degrees
Winter Low: the January low is 23.4
Rain: averages 47.3 inches of rain a year
Snow: averages 28.3 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Trenton is 7.2 (10=best), which means it is about average compared to other places in New Jersey.

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

Today's Weather - Port Jefferson Station, NY

66°F

Today's Weather - Trenton, NJ

69°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Port Jefferson Station / Trenton

July is the hottest month for Port Jefferson Station with an average high temperature of 83.3°, which ranks it as warmer than most places in New York. In Port Jefferson Station, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Port Jefferson Station are June, September and August.

July is the hottest month for Trenton with an average high temperature of 85.4°, which ranks it as about average compared to other places in New Jersey. In Trenton, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Trenton are September, June and August.

January has the coldest nighttime temperatures for Port Jefferson Station with an average of 23.4°. This is warmer than most places in New York.

January has the coldest nighttime temperatures for Trenton with an average of 22.1°. This is colder than most places in New Jersey.

In Port Jefferson Station, there are 7.8 days annually when the high temperature is over 90°, which is hotter than most places in New York.

In Trenton, there are 16.6 days annually when the high temperature is over 90°, which is about average compared to other places in New Jersey.

In Port Jefferson Station, there are 99.0 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in New York.

In Trenton, there are 107.1 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in New Jersey.

In Port Jefferson Station, there are 0.3 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in New York.

In Trenton, there are 0.6 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in New Jersey.

June is the wettest month in Port Jefferson Station with 4.5 inches of rain, and the driest month is February with 3.2 inches. The wettest season is Summer with 27% of yearly precipitation and 23% occurs in Spring, which is the driest season. The annual rainfall of 47.3 inches in Port Jefferson Station means that it is wetter than most places in New York.


July is the wettest month in Trenton with 5.0 inches of rain, and the driest month is February with 2.6 inches. The wettest season is Autumn with 29% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 47.5 inches in Trenton means that it is about average compared to other places in New Jersey.

April is the rainiest month in Port Jefferson Station with 10.6 days of rain, and August is the driest month with only 7.9 rainy days. There are 110.4 rainy days annually in Port Jefferson Station, which is one of the least rainy places in New York. 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 Trenton with 11.6 days of rain, and September is the driest month with only 8.6 rainy days. There are 120.1 rainy days annually in Trenton, which is rainier than most places in New Jersey. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 22% chance of a rainy day.

An annual snowfall of 28.3 inches in Port Jefferson Station means that it is less snowy than most places in New York.

An annual snowfall of 19.9 inches in Trenton means that it is less snowy than most places in New Jersey.

February is the snowiest month in Port Jefferson Station with 8.4 inches of snow, and 6 months of the year have significant snowfall.

February is the snowiest month in Trenton with 6.2 inches of snow, and 5 months of the year have significant snowfall.