2025 Compare Climate & Weather:
American Canyon, CA vs Grants Pass, OR

Highlights

On average, there are 196 sunny days per year in Grants Pass. American Canyon averages 265 sunny days per year. The US average is 205 sunny days.

Grants Pass, Oregon gets 29.8 inches of rain, on average, per year. American Canyon, California gets 24.2 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Grants Pass averages 2.6 inches of snow per year. American Canyon averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Grants Pass, Oregon
Summer High: the July high is around 90.7 degrees
Winter Low: the January low is 33.9
Rain: averages 29.8 inches of rain a year
Snow: averages 2.6 inches of snow a year

American Canyon, California
Summer High: the July high is around 83.3 degrees
Winter Low: the January low is 38.5
Rain: averages 24.2 inches of rain a year
Snow: averages 0 inches of snow a year

BestPlaces Comfort Index

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

The annual BestPlaces Comfort Index for American Canyon is 8.5 (10=best), which means it is more comfortable than most places in California.

Today's Weather - American Canyon, CA

52°F

Today's Weather - Grants Pass, OR

51°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: American Canyon / Grants Pass

August is the hottest month for American Canyon with an average high temperature of 83.6°, which ranks it as cooler than most places in California. In American Canyon, there are 7 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for American Canyon are October, May and June.

August is the hottest month for Grants Pass with an average high temperature of 90.9°, which ranks it as one of the hottest places in Oregon. In Grants Pass, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Grants Pass are June, May and September.

December has the coldest nighttime temperatures for American Canyon with an average of 38.1°. This is about average compared to other places in California.

January has the coldest nighttime temperatures for Grants Pass with an average of 33.9°. This is warmer than most places in Oregon.

In American Canyon, there are 29.7 days annually when the high temperature is over 90°, which is cooler than most places in California.

In Grants Pass, there are 54.7 days annually when the high temperature is over 90°, which is one of the hottest places in Oregon.

In American Canyon, there are 17.6 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in California.

In Grants Pass, there are 53.1 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Oregon.

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

January is the wettest month in American Canyon with 4.8 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 58% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 24.2 inches in American Canyon means that it is wetter than most places in California.


December is the wettest month in Grants Pass with 6.0 inches of rain, and the driest month is July with 0.3 inches. The wettest season is Spring with 49% of yearly precipitation and 4% occurs in Autumn, which is the driest season. The annual rainfall of 29.8 inches in Grants Pass means that it is drier than most places in Oregon.

December is the rainiest month in American Canyon with 11.6 days of rain, and July is the driest month with only 0.1 rainy days. There are 65.7 rainy days annually in American Canyon, which is rainier than most places in California. The rainiest season is Spring when it rains 51% of the time and the driest is Autumn with only a 2% chance of a rainy day.

December is the rainiest month in Grants Pass with 15.0 days of rain, and July is the driest month with only 1.7 rainy days. There are 104.4 rainy days annually in Grants Pass, which is less rainy than most places in Oregon. The rainiest season is Spring when it rains 40% of the time and the driest is Autumn with only a 7% chance of a rainy day.

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

An annual snowfall of 2.6 inches in Grants Pass means that it is less snowy than most places in Oregon.

Any measurable snowfall is a rare occurance in American Canyon.

January is the snowiest month in Grants Pass with 0.9 inches of snow, and 3 months of the year have significant snowfall.