2025 Compare Climate & Weather:
Dayton, OH vs Mesa, AZ

Highlights

On average, there are 301 sunny days per year in Mesa. Dayton averages 176 sunny days per year. The US average is 205 sunny days.

Mesa, Arizona gets 10.1 inches of rain, on average, per year. Dayton, Ohio gets 40.4 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. Dayton averages 17 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

Dayton, Ohio
Summer High: the July high is around 85 degrees
Winter Low: the January low is 21.1
Rain: averages 40.4 inches of rain a year
Snow: averages 17 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 Dayton is 7.1 (10=best), which means it is more comfortable than most places in Ohio.

Today's Weather - Dayton, OH

73°F

Today's Weather - Mesa, AZ

88°F

Average Monthly High / Low (°F)

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

July is the hottest month for Dayton with an average high temperature of 85.0°, which ranks it as warmer than most places in Ohio. In Dayton, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Dayton are September, June and May.

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 Dayton with an average of 21.1°. This is warmer than most places in Ohio.

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

In Dayton, there are 17.2 days annually when the high temperature is over 90°, which is hotter than most places in Ohio.

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

In Dayton, there are 104.8 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Ohio.

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 Dayton, there are 2.8 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Ohio.

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.

May is the wettest month in Dayton with 4.7 inches of rain, and the driest month is February with 2.3 inches. The wettest season is Summer with 30% of yearly precipitation and 20% occurs in Spring, which is the driest season. The annual rainfall of 40.4 inches in Dayton means that it is wetter than most places in Ohio.


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 Dayton with 13.2 days of rain, and August is the driest month with only 8.0 rainy days. There are 128.8 rainy days annually in Dayton, which is about average compared to other places in Ohio. The rainiest season is Summer when it rains 29% 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 17.0 inches in Dayton means that it is less snowy than most places in Ohio.

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

January is the snowiest month in Dayton with 5.9 inches of snow, and 4 months of the year have significant snowfall.

Any measurable snowfall is a rare occurance in Mesa.