2025 Compare Climate & Weather:
Raleigh, NC vs Iselin, NJ

Highlights

On average, there are 204 sunny days per year in Iselin. Raleigh averages 213 sunny days per year. The US average is 205 sunny days.

Iselin, New Jersey gets 48.7 inches of rain, on average, per year. Raleigh, North Carolina gets 45.8 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Iselin averages 24.9 inches of snow per year. Raleigh averages 3.7 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Iselin, New Jersey
Summer High: the July high is around 86.2 degrees
Winter Low: the January low is 22.2
Rain: averages 48.7 inches of rain a year
Snow: averages 24.9 inches of snow a year

Raleigh, North Carolina
Summer High: the July high is around 89.5 degrees
Winter Low: the January low is 29.9
Rain: averages 45.8 inches of rain a year
Snow: averages 3.7 inches of snow a year

BestPlaces Comfort Index

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

The annual BestPlaces Comfort Index for Raleigh is 7.5 (10=best), which means it is more comfortable than most places in North Carolina.

Today's Weather - Raleigh, NC

60°F

Today's Weather - Iselin, NJ

57°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Raleigh / Iselin

July is the hottest month for Raleigh with an average high temperature of 89.5°, which ranks it as warmer than most places in North Carolina. In Raleigh, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Raleigh are May, September and April.

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

January has the coldest nighttime temperatures for Raleigh with an average of 29.9°. This is about average compared to other places in North Carolina.

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

In Raleigh, there are 40.6 days annually when the high temperature is over 90°, which is hotter than most places in North Carolina.

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

In Raleigh, there are 65.7 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in North Carolina.

In Iselin, there are 107.6 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in New Jersey.

In Raleigh, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in North Carolina.

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

August is the wettest month in Raleigh with 4.6 inches of rain, and the driest month is April with 3.1 inches. The wettest season is Autumn with 29% of yearly precipitation and 23% occurs in Spring, which is the driest season. The annual rainfall of 45.8 inches in Raleigh means that it is drier than most places in North Carolina.


July is the wettest month in Iselin with 5.4 inches of rain, and the driest month is February with 2.9 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 48.7 inches in Iselin means that it is wetter than most places in New Jersey.

July is the rainiest month in Raleigh with 10.6 days of rain, and October is the driest month with only 7.0 rainy days. There are 108.3 rainy days annually in Raleigh, which is less rainy than most places in North Carolina. The rainiest season is Autumn when it rains 28% of the time and the driest is Winter with only a 21% chance of a rainy day.

April is the rainiest month in Iselin with 11.3 days of rain, and October is the driest month with only 8.2 rainy days. There are 115.1 rainy days annually in Iselin, which is less rainy 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 3.7 inches in Raleigh means that it is snowier than most places in North Carolina.

An annual snowfall of 24.9 inches in Iselin means that it is snowier than most places in New Jersey.

January is the snowiest month in Raleigh with 1.9 inches of snow, and 3 months of the year have significant snowfall.

February is the snowiest month in Iselin with 8.3 inches of snow, and 5 months of the year have significant snowfall.