2025 Compare Climate & Weather:
Alpharetta, GA vs San Jose, CA

Highlights

On average, there are 257 sunny days per year in San Jose. Alpharetta averages 218 sunny days per year. The US average is 205 sunny days.

San Jose, California gets 17.2 inches of rain, on average, per year. Alpharetta, Georgia gets 53.4 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

San Jose averages 0 inches of snow per year. Alpharetta averages 1.6 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

San Jose, California
Summer High: the July high is around 81.9 degrees
Winter Low: the January low is 41.6
Rain: averages 17.2 inches of rain a year
Snow: averages 0 inches of snow a year

Alpharetta, Georgia
Summer High: the July high is around 87.9 degrees
Winter Low: the January low is 30
Rain: averages 53.4 inches of rain a year
Snow: averages 1.6 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for San Jose is 8.8 (10=best), which means it is more comfortable than most places in California.

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

Today's Weather - Alpharetta, GA

68°F

Today's Weather - San Jose, CA

73°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Alpharetta / San Jose

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

August is the hottest month for San Jose with an average high temperature of 81.9°, which ranks it as cooler than most places in California. In San Jose, there are 6 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for San Jose are June, September and May.

January has the coldest nighttime temperatures for Alpharetta with an average of 30.0°. This is colder than most places in Georgia.

December has the coldest nighttime temperatures for San Jose with an average of 41.5°. This is warmer than most places in California.

In Alpharetta, there are 27.3 days annually when the high temperature is over 90°, which is cooler than most places in Georgia.

In San Jose, there are 16.9 days annually when the high temperature is over 90°, which is cooler than most places in California.

In Alpharetta, there are 64.5 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Georgia.

In San Jose, there are 4.5 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In Alpharetta, there are 0.1 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Georgia.

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

March is the wettest month in Alpharetta with 5.1 inches of rain, and the driest month is April with 3.8 inches. The wettest season is Spring with 27% of yearly precipitation and 23% occurs in Winter, which is the driest season. The annual rainfall of 53.4 inches in Alpharetta means that it is wetter than most places in Georgia.


February is the wettest month in San Jose with 3.5 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 57% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 17.2 inches in San Jose means that it is about average compared to other places in California.

January is the rainiest month in Alpharetta with 10.5 days of rain, and October is the driest month with only 6.8 rainy days. There are 108.0 rainy days annually in Alpharetta, which is rainier than most places in Georgia. The rainiest season is Spring when it rains 28% of the time and the driest is Winter with only a 21% chance of a rainy day.

December is the rainiest month in San Jose with 10.3 days of rain, and July is the driest month with only 0.2 rainy days. There are 61.8 rainy days annually in San Jose, 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 1.6 inches in Alpharetta means that it is snowier than most places in Georgia.

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

January is the snowiest month in Alpharetta with 0.7 inches of snow, and 1 month of the year have significant snowfall.

Any measurable snowfall is a rare occurance in San Jose.