2025 Compare Climate & Weather:
Sunnyvale, CA vs Lathrop, CA

Highlights

On average, there are 257 sunny days per year in Lathrop. Sunnyvale averages 260 sunny days per year. The US average is 205 sunny days.

Lathrop, California gets 15 inches of rain, on average, per year. Sunnyvale, California gets 15.4 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Lathrop averages 0 inches of snow per year. Sunnyvale averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Lathrop, California
Summer High: the July high is around 93.3 degrees
Winter Low: the January low is 37.4
Rain: averages 15 inches of rain a year
Snow: averages 0 inches of snow a year

Sunnyvale, California
Summer High: the July high is around 80.3 degrees
Winter Low: the January low is 42.3
Rain: averages 15.4 inches of rain a year
Snow: averages 0 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Lathrop is 8.2 (10=best), which means it is about average compared to other places in California.

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

Today's Weather - Sunnyvale, CA

67°F

Today's Weather - Lathrop, CA

78°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Sunnyvale / Lathrop

August is the hottest month for Sunnyvale with an average high temperature of 80.3°, which ranks it as cooler than most places in California. In Sunnyvale, there are 6 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Sunnyvale are June, September and July.

July is the hottest month for Lathrop with an average high temperature of 93.3°, which ranks it as warmer than most places in California. In Lathrop, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Lathrop are October, May and April.

December has the coldest nighttime temperatures for Sunnyvale with an average of 42.2°. This is warmer than most places in California.

December has the coldest nighttime temperatures for Lathrop with an average of 37.0°. This is about average compared to other places in California.

In Sunnyvale, there are 13.3 days annually when the high temperature is over 90°, which is cooler than most places in California.

In Lathrop, there are 76.2 days annually when the high temperature is over 90°, which is hotter than most places in California.

In Sunnyvale, there are 2.3 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In Lathrop, there are 18.6 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in California.

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

February is the wettest month in Sunnyvale with 3.1 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 56% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 15.4 inches in Sunnyvale means that it is drier than most places in California.


January is the wettest month in Lathrop with 2.9 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 54% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 15.0 inches in Lathrop means that it is drier than most places in California.

December is the rainiest month in Sunnyvale with 10.5 days of rain, and July is the driest month with only 0.2 rainy days. There are 62.6 rainy days annually in Sunnyvale, which is rainier than most places in California. The rainiest season is Spring when it rains 49% of the time and the driest is Autumn with only a 2% chance of a rainy day.

January is the rainiest month in Lathrop with 10.7 days of rain, and July is the driest month with only 0.1 rainy days. There are 57.5 rainy days annually in Lathrop, which is about average compared to other places in California. The rainiest season is Spring when it rains 52% of the time and the driest is Autumn with only a 2% chance of a rainy day.

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

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

Any measurable snowfall is a rare occurance in Sunnyvale.

Any measurable snowfall is a rare occurance in Lathrop.