2025 Compare Climate & Weather:
Trenton, NJ vs Mesa, AZ

Highlights

On average, there are 301 sunny days per year in Mesa. Trenton averages 201 sunny days per year. The US average is 205 sunny days.

Mesa, Arizona gets 10.1 inches of rain, on average, per year. Trenton, New Jersey gets 47.5 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Mesa averages 0 inches of snow per year. Trenton averages 19.9 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Mesa, Arizona
Summer High: the July high is around 104.6 degrees
Winter Low: the January low is 40.9
Rain: averages 10.1 inches of rain a year
Snow: averages 0 inches of snow a year

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

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Mesa is 7.3 (10=best), which means it is less comfortable than most places in Arizona.

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.

Today's Weather - Trenton, NJ

60°F

Today's Weather - Mesa, AZ

62°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Trenton / Mesa

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.

July is the hottest month for Mesa with an average high temperature of 104.6°, which ranks it as warmer than most places in Arizona. In Mesa, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Mesa are March, November and April.

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

December has the coldest nighttime temperatures for Mesa with an average of 39.6°. This is warmer than most places in Arizona.

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 Mesa, there are 165.6 days annually when the high temperature is over 90°, which is hotter than most places in Arizona.

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 Mesa, there are 8.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Arizona.

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.

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

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.


August is the wettest month in Mesa with 1.4 inches of rain, and the driest month is June with 0.0 inches. The wettest season is Spring with 35% of yearly precipitation and 18% occurs in Summer, which is the driest season. The annual rainfall of 10.1 inches in Mesa means that it is drier than most places in Arizona.

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.

August is the rainiest month in Mesa with 4.8 days of rain, and June is the driest month with only 0.5 rainy days. There are 36.0 rainy days annually in Mesa, which is less rainy than most places in Arizona. The rainiest season is Spring when it rains 35% of the time and the driest is Summer with only a 18% chance of a rainy day.

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

There is rarely any recorded snowfall in Mesa, ranking it as one of the least snowy places in Arizona.

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

Any measurable snowfall is a rare occurance in Mesa.