2025 Compare Climate & Weather:
San Diego, CA vs Gresham, OR

Highlights

On average, there are 144 sunny days per year in Gresham. San Diego averages 266 sunny days per year. The US average is 205 sunny days.

Gresham, Oregon gets 56.1 inches of rain, on average, per year. San Diego, California gets 11.7 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Gresham averages 3.3 inches of snow per year. San Diego averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Gresham, Oregon
Summer High: the July high is around 80.4 degrees
Winter Low: the January low is 33.8
Rain: averages 56.1 inches of rain a year
Snow: averages 3.3 inches of snow a year

San Diego, California
Summer High: the July high is around 78.5 degrees
Winter Low: the January low is 45.6
Rain: averages 11.7 inches of rain a year
Snow: averages 0 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Gresham is 7.3 (10=best), which means it is more comfortable than most places in Oregon.

The annual BestPlaces Comfort Index for San Diego is 9.2 (10=best), which means it is one of the most pleasant places in California.

Today's Weather - San Diego, CA

56°F

Today's Weather - Gresham, OR

51°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: San Diego / Gresham

August is the hottest month for San Diego with an average high temperature of 80.2°, which ranks it as cooler than most places in California. In San Diego, there are 7 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for San Diego are July, September and August.

August is the hottest month for Gresham with an average high temperature of 81.0°, which ranks it as cooler than most places in Oregon. In Gresham, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Gresham are July, September and August.

December has the coldest nighttime temperatures for San Diego with an average of 45.3°. This is one of the warmest places in California.

December has the coldest nighttime temperatures for Gresham with an average of 33.1°. This is about average compared to other places in Oregon.

In San Diego, there are 13.4 days annually when the high temperature is over 90°, which is cooler than most places in California.

In Gresham, there are 12.9 days annually when the high temperature is over 90°, which is cooler than most places in Oregon.

In San Diego, there are 0.7 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in California.

In Gresham, there are 49.7 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Oregon.

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

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

February is the wettest month in San Diego with 2.5 inches of rain, and the driest month is August with 0.0 inches. The wettest season is Spring with 55% of yearly precipitation and 2% occurs in Autumn, which is the driest season. The annual rainfall of 11.7 inches in San Diego means that it is drier than most places in California.


November is the wettest month in Gresham with 8.7 inches of rain, and the driest month is July with 0.9 inches. The wettest season is Spring with 39% of yearly precipitation and 8% occurs in Autumn, which is the driest season. The annual rainfall of 56.1 inches in Gresham means that it is wetter than most places in Oregon.

February is the rainiest month in San Diego with 6.8 days of rain, and August is the driest month with only 0.4 rainy days. There are 38.4 rainy days annually in San Diego, which is less rainy than most places in California. The rainiest season is Spring when it rains 48% of the time and the driest is Autumn with only a 4% chance of a rainy day.

November is the rainiest month in Gresham with 19.6 days of rain, and August is the driest month with only 4.0 rainy days. There are 164.0 rainy days annually in Gresham, which is rainier than most places in Oregon. The rainiest season is Spring when it rains 33% of the time and the driest is Autumn with only a 11% chance of a rainy day.

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

An annual snowfall of 3.3 inches in Gresham means that it is about average compared to other places in Oregon.

Any measurable snowfall is a rare occurance in San Diego.

January is the snowiest month in Gresham with 1.1 inches of snow, and 3 months of the year have significant snowfall.