2025 Compare Climate & Weather:
Mentor, OH vs Roseville, CA

Highlights

On average, there are 247 sunny days per year in Roseville. Mentor averages 161 sunny days per year. The US average is 205 sunny days.

Roseville, California gets 21.2 inches of rain, on average, per year. Mentor, Ohio gets 39.2 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Roseville averages 0 inches of snow per year. Mentor averages 65.5 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Roseville, California
Summer High: the July high is around 94 degrees
Winter Low: the January low is 39
Rain: averages 21.2 inches of rain a year
Snow: averages 0 inches of snow a year

Mentor, Ohio
Summer High: the July high is around 81.3 degrees
Winter Low: the January low is 21.4
Rain: averages 39.2 inches of rain a year
Snow: averages 65.5 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Roseville is 8.2 (10=best), which means it is about average compared to other places in California.

The annual BestPlaces Comfort Index for Mentor is 6.7 (10=best), which means it is one of the least comfortable places in Ohio.

Today's Weather - Mentor, OH

48°F

Today's Weather - Roseville, CA

62°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Mentor / Roseville

July is the hottest month for Mentor with an average high temperature of 81.3°, which ranks it as one of the coolest places in Ohio. In Mentor, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Mentor are June, August and July.

July is the hottest month for Roseville with an average high temperature of 94.0°, which ranks it as warmer than most places in California. In Roseville, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Roseville are October, May and April.

January has the coldest nighttime temperatures for Mentor with an average of 21.4°. This is warmer than most places in Ohio.

December has the coldest nighttime temperatures for Roseville with an average of 38.9°. This is warmer than most places in California.

In Mentor, there are 4.8 days annually when the high temperature is over 90°, which is one of the coolest places in Ohio.

In Roseville, there are 77.5 days annually when the high temperature is over 90°, which is hotter than most places in California.

In Mentor, there are 104.6 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Ohio.

In Roseville, there are 10.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In Mentor, there are 1.4 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Ohio.

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

June is the wettest month in Mentor with 4.0 inches of rain, and the driest month is February with 2.2 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 39.2 inches in Mentor means that it is drier than most places in Ohio.


February is the wettest month in Roseville with 4.0 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 55% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 21.2 inches in Roseville means that it is wetter than most places in California.

January is the rainiest month in Mentor with 17.4 days of rain, and August is the driest month with only 10.5 rainy days. There are 161.6 rainy days annually in Mentor, which is one of the rainiest places in Ohio. The rainiest season is Spring when it rains 30% of the time and the driest is Autumn with only a 21% chance of a rainy day.

January is the rainiest month in Roseville with 10.6 days of rain, and July is the driest month with only 0.1 rainy days. There are 60.2 rainy days annually in Roseville, which is about average compared to other places in California. The rainiest season is Spring when it rains 50% of the time and the driest is Autumn with only a 3% chance of a rainy day.

An annual snowfall of 65.5 inches in Mentor means that it is one of the snowiest places in Ohio.

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

January is the snowiest month in Mentor with 18.0 inches of snow, and 6 months of the year have significant snowfall.

Any measurable snowfall is a rare occurance in Roseville.