2025 Compare Climate & Weather:
Salem, OR vs Plainsboro, NJ

Highlights

On average, there are 206 sunny days per year in Plainsboro. Salem averages 154 sunny days per year. The US average is 205 sunny days.

Plainsboro, New Jersey gets 48.1 inches of rain, on average, per year. Salem, Oregon gets 44.9 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Plainsboro averages 23.2 inches of snow per year. Salem averages 3.9 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Plainsboro, New Jersey
Summer High: the July high is around 85.5 degrees
Winter Low: the January low is 22.4
Rain: averages 48.1 inches of rain a year
Snow: averages 23.2 inches of snow a year

Salem, Oregon
Summer High: the July high is around 81.1 degrees
Winter Low: the January low is 34.8
Rain: averages 44.9 inches of rain a year
Snow: averages 3.9 inches of snow a year

BestPlaces Comfort Index

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

The annual BestPlaces Comfort Index for Salem is 7.4 (10=best), which means it is more comfortable than most places in Oregon.

Today's Weather - Salem, OR

42°F

Today's Weather - Plainsboro, NJ

64°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Salem / Plainsboro

August is the hottest month for Salem with an average high temperature of 81.6°, which ranks it as cooler than most places in Oregon. In Salem, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Salem are September, July and August.

July is the hottest month for Plainsboro with an average high temperature of 85.5°, which ranks it as warmer than most places in New Jersey. In Plainsboro, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Plainsboro are September, June and August.

December has the coldest nighttime temperatures for Salem with an average of 34.0°. This is warmer than most places in Oregon.

January has the coldest nighttime temperatures for Plainsboro with an average of 22.4°. This is about average compared to other places in New Jersey.

In Salem, there are 12.5 days annually when the high temperature is over 90°, which is cooler than most places in Oregon.

In Plainsboro, there are 17.3 days annually when the high temperature is over 90°, which is about average compared to other places in New Jersey.

In Salem, there are 46.1 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Oregon.

In Plainsboro, there are 106.4 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in New Jersey.

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

In Plainsboro, 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.

December is the wettest month in Salem with 7.6 inches of rain, and the driest month is July with 0.5 inches. The wettest season is Spring with 43% of yearly precipitation and 6% occurs in Autumn, which is the driest season. The annual rainfall of 44.9 inches in Salem means that it is wetter than most places in Oregon.


July is the wettest month in Plainsboro with 5.2 inches of rain, and the driest month is February with 2.7 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 48.1 inches in Plainsboro means that it is about average compared to other places in New Jersey.

November is the rainiest month in Salem with 19.2 days of rain, and August is the driest month with only 3.2 rainy days. There are 151.5 rainy days annually in Salem, which is rainier than most places in Oregon. The rainiest season is Spring when it rains 35% of the time and the driest is Autumn with only a 10% chance of a rainy day.

May is the rainiest month in Plainsboro with 12.1 days of rain, and September is the driest month with only 8.6 rainy days. There are 120.8 rainy days annually in Plainsboro, 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 3.9 inches in Salem means that it is about average compared to other places in Oregon.

An annual snowfall of 23.2 inches in Plainsboro means that it is about average compared to other places in New Jersey.

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

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