2025 Compare Climate & Weather:
Cupertino, CA vs Decatur, GA

Highlights

On average, there are 218 sunny days per year in Decatur. Cupertino averages 265 sunny days per year. The US average is 205 sunny days.

Decatur, Georgia gets 52.5 inches of rain, on average, per year. Cupertino, California gets 18 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Decatur averages 1.5 inches of snow per year. Cupertino averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Decatur, Georgia
Summer High: the July high is around 87.9 degrees
Winter Low: the January low is 32.6
Rain: averages 52.5 inches of rain a year
Snow: averages 1.5 inches of snow a year

Cupertino, California
Summer High: the July high is around 81.2 degrees
Winter Low: the January low is 41.2
Rain: averages 18 inches of rain a year
Snow: averages 0 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Decatur is 7.6 (10=best), which means it is one of the most pleasant places in Georgia.

The annual BestPlaces Comfort Index for Cupertino is 8.7 (10=best), which means it is more comfortable than most places in California.

Today's Weather - Cupertino, CA

53°F

Today's Weather - Decatur, GA

65°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Cupertino / Decatur

July is the hottest month for Cupertino with an average high temperature of 81.2°, which ranks it as cooler than most places in California. In Cupertino, there are 6 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Cupertino are June, September and August.

July is the hottest month for Decatur with an average high temperature of 87.9°, which ranks it as cooler than most places in Georgia. In Decatur, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Decatur are May, September and April.

January has the coldest nighttime temperatures for Cupertino with an average of 41.2°. This is warmer than most places in California.

January has the coldest nighttime temperatures for Decatur with an average of 32.6°. This is about average compared to other places in Georgia.

In Cupertino, there are 16.2 days annually when the high temperature is over 90°, which is cooler than most places in California.

In Decatur, there are 28.3 days annually when the high temperature is over 90°, which is cooler than most places in Georgia.

In Cupertino, there are 5.5 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In Decatur, there are 46.4 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Georgia.

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

February is the wettest month in Cupertino with 3.7 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 18.0 inches in Cupertino means that it is about average compared to other places in California.


July is the wettest month in Decatur with 5.1 inches of rain, and the driest month is April with 3.6 inches. The wettest season is Spring with 26% of yearly precipitation and 24% occurs in Winter, which is the driest season. The annual rainfall of 52.5 inches in Decatur means that it is wetter than most places in Georgia.

December is the rainiest month in Cupertino with 10.3 days of rain, and July is the driest month with only 0.2 rainy days. There are 61.4 rainy days annually in Cupertino, 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.

July is the rainiest month in Decatur with 10.8 days of rain, and October is the driest month with only 6.8 rainy days. There are 108.7 rainy days annually in Decatur, which is rainier than most places in Georgia. The rainiest season is Autumn when it rains 28% of the time and the driest is Winter with only a 21% chance of a rainy day.

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

An annual snowfall of 1.5 inches in Decatur means that it is snowier than most places in Georgia.

Any measurable snowfall is a rare occurance in Cupertino.

January is the snowiest month in Decatur with 0.6 inches of snow, and 1 month of the year have significant snowfall.