2025 Compare Climate & Weather:
American Canyon, CA vs Fairfield, CA

Highlights

On average, there are 258 sunny days per year in Fairfield. American Canyon averages 265 sunny days per year. The US average is 205 sunny days.

Fairfield, California gets 24.8 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.

Fairfield averages 0 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

Fairfield, California
Summer High: the July high is around 89.8 degrees
Winter Low: the January low is 38.7
Rain: averages 24.8 inches of rain a year
Snow: averages 0 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 Fairfield is 8.3 (10=best), which means it is more comfortable than most places in California.

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

60°F

Today's Weather - Fairfield, CA

63°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: American Canyon / Fairfield

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.

July is the hottest month for Fairfield with an average high temperature of 89.8°, which ranks it as about average compared to other places in California. In Fairfield, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Fairfield are October, May and April.

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.

December has the coldest nighttime temperatures for Fairfield with an average of 38.5°. This is about average compared to other places in California.

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 Fairfield, there are 59.2 days annually when the high temperature is over 90°, which is about average compared to other places in California.

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 Fairfield, there are 13.1 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in California.

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

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 Fairfield with 4.9 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 60% of yearly precipitation and 0% occurs in Autumn, which is the driest season. The annual rainfall of 24.8 inches in Fairfield means that it is wetter than most places in California.

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.

January is the rainiest month in Fairfield with 11.5 days of rain, and July is the driest month with only 0.0 rainy days. There are 64.7 rainy days annually in Fairfield, 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.

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

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

Any measurable snowfall is a rare occurance in American Canyon.

Any measurable snowfall is a rare occurance in Fairfield.