2025 Compare Climate & Weather:
Copperopolis, CA vs Livermore, CA

Highlights

On average, there are 257 sunny days per year in Livermore. Copperopolis averages 261 sunny days per year. The US average is 205 sunny days.

Livermore, California gets 18.2 inches of rain, on average, per year. Copperopolis, California gets 28.5 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Livermore averages 0 inches of snow per year. Copperopolis averages 0.2 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Livermore, California
Summer High: the July high is around 89.3 degrees
Winter Low: the January low is 38.6
Rain: averages 18.2 inches of rain a year
Snow: averages 0 inches of snow a year

Copperopolis, California
Summer High: the July high is around 95.8 degrees
Winter Low: the January low is 36.5
Rain: averages 28.5 inches of rain a year
Snow: averages 0.2 inches of snow a year

BestPlaces Comfort Index

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

The annual BestPlaces Comfort Index for Copperopolis is 8.0 (10=best), which means it is less comfortable than most places in California.

Today's Weather - Copperopolis, CA

67°F

Today's Weather - Livermore, CA

62°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Copperopolis / Livermore

July is the hottest month for Copperopolis with an average high temperature of 95.8°, which ranks it as warmer than most places in California. In Copperopolis, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Copperopolis are October, May and April.

July is the hottest month for Livermore with an average high temperature of 89.3°, which ranks it as about average compared to other places in California. In Livermore, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Livermore are May, October and June.

January has the coldest nighttime temperatures for Copperopolis with an average of 36.5°. This is colder than most places in California.

January has the coldest nighttime temperatures for Livermore with an average of 38.6°. This is about average compared to other places in California.

In Copperopolis, there are 85.1 days annually when the high temperature is over 90°, which is hotter than most places in California.

In Livermore, there are 52.0 days annually when the high temperature is over 90°, which is about average compared to other places in California.

In Copperopolis, there are 23.0 days annually when the nighttime low temperature falls below freezing, which is colder than most places in California.

In Livermore, there are 13.5 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in California.

In Copperopolis, 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 Livermore, 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 Copperopolis with 5.4 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 52% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 28.5 inches in Copperopolis means that it is wetter than most places in California.


February is the wettest month in Livermore with 3.4 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 18.2 inches in Livermore means that it is about average compared to other places in California.

January is the rainiest month in Copperopolis with 11.9 days of rain, and July is the driest month with only 0.2 rainy days. There are 70.4 rainy days annually in Copperopolis, which is rainier 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 3% chance of a rainy day.

December is the rainiest month in Livermore with 10.9 days of rain, and July is the driest month with only 0.1 rainy days. There are 63.6 rainy days annually in Livermore, which is rainier than most places in California. The rainiest season is Spring when it rains 50% of the time and the driest is Autumn with only a 2% chance of a rainy day.

An annual snowfall of 0.2 inches in Copperopolis means that it is snowier than most places in California.

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

March is the snowiest month in Copperopolis with 0.2 inches of snow, and no months of the year have significant snowfall.

Any measurable snowfall is a rare occurance in Livermore.