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

Highlights

On average, there are 266 sunny days per year in San Diego. Oregon City averages 143 sunny days per year. The US average is 205 sunny days.

San Diego, California gets 11.7 inches of rain, on average, per year. Oregon City, Oregon gets 42.9 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

San Diego averages 0 inches of snow per year. Oregon City averages 1.6 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

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

Oregon City, Oregon
Summer High: the July high is around 81.8 degrees
Winter Low: the January low is 36.1
Rain: averages 42.9 inches of rain a year
Snow: averages 1.6 inches of snow a year

BestPlaces Comfort Index

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.

The annual BestPlaces Comfort Index for Oregon City is 7.5 (10=best), which means it is more comfortable than most places in Oregon.

Today's Weather - Oregon City, OR

68°F

Today's Weather - San Diego, CA

86°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Oregon City / San Diego

August is the hottest month for Oregon City with an average high temperature of 82.4°, which ranks it as about average compared to other places in Oregon. In Oregon City, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Oregon City are September, June and July.

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.

December has the coldest nighttime temperatures for Oregon City with an average of 34.8°. This is warmer than most places in Oregon.

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

In Oregon City, there are 15.3 days annually when the high temperature is over 90°, which 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 Oregon City, there are 33.3 days annually when the nighttime low temperature falls below freezing, which is warmer 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 Oregon City, 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 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.

December is the wettest month in Oregon City with 6.9 inches of rain, and the driest month is July with 0.6 inches. The wettest season is Spring with 41% of yearly precipitation and 7% occurs in Autumn, which is the driest season. The annual rainfall of 42.9 inches in Oregon City means that it 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 rainiest month in Oregon City with 18.7 days of rain, and August is the driest month with only 3.4 rainy days. There are 146.6 rainy days annually in Oregon City, which is about average compared to other places in Oregon. The rainiest season is Spring when it rains 34% of the time and the driest is Autumn with only a 11% chance of a rainy day.

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.

An annual snowfall of 1.6 inches in Oregon City means that it is less snowy than most places in Oregon.

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

December is the snowiest month in Oregon City with 0.5 inches of snow, and 3 months of the year have significant snowfall.

Any measurable snowfall is a rare occurance in San Diego.