2025 Compare Climate & Weather:
Jamestown, NY vs San Francisco, CA

Highlights

On average, there are 259 sunny days per year in San Francisco. Jamestown averages 158 sunny days per year. The US average is 205 sunny days.

San Francisco, California gets 24.6 inches of rain, on average, per year. Jamestown, New York gets 45.9 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

San Francisco averages 0 inches of snow per year. Jamestown averages 107.4 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

San Francisco, California
Summer High: the July high is around 67.2 degrees
Winter Low: the January low is 45.5
Rain: averages 24.6 inches of rain a year
Snow: averages 0 inches of snow a year

Jamestown, New York
Summer High: the July high is around 80 degrees
Winter Low: the January low is 14.4
Rain: averages 45.9 inches of rain a year
Snow: averages 107.4 inches of snow a year

BestPlaces Comfort Index

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

The annual BestPlaces Comfort Index for Jamestown is 6.2 (10=best), which means it is less comfortable than most places in New York.

Today's Weather - Jamestown, NY

49°F

Today's Weather - San Francisco, CA

52°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Jamestown / San Francisco

July is the hottest month for Jamestown with an average high temperature of 80.0°, which ranks it as cooler than most places in New York. In Jamestown, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Jamestown are August, June and July.

September is the hottest month for San Francisco with an average high temperature of 69.9°, which ranks it as one of the coolest places in California. In San Francisco, there are 0 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for San Francisco are September, October and August.

January has the coldest nighttime temperatures for Jamestown with an average of 14.4°. This is colder than most places in New York.

January has the coldest nighttime temperatures for San Francisco with an average of 45.5°. This is one of the warmest places in California.

In Jamestown, there are 3.6 days annually when the high temperature is over 90°, which is cooler than most places in New York.

In San Francisco, there are 1.9 days annually when the high temperature is over 90°, which is one of the coolest places in California.

In Jamestown, there are 156.1 days annually when the nighttime low temperature falls below freezing, which is colder than most places in New York.

In San Francisco, there are 0.3 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in California.

In Jamestown, there are 10.0 days annually when the nighttime low temperature falls below zero°, which is colder than most places in New York.

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

June is the wettest month in Jamestown with 5.0 inches of rain, and the driest month is February with 2.5 inches. The wettest season is Autumn with 30% of yearly precipitation and 20% occurs in Spring, which is the driest season. The annual rainfall of 45.9 inches in Jamestown means that it is about average compared to other places in New York.


January is the wettest month in San Francisco with 4.8 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 24.6 inches in San Francisco means that it is wetter than most places in California.

January is the rainiest month in Jamestown with 18.9 days of rain, and August is the driest month with only 11.8 rainy days. There are 170.1 rainy days annually in Jamestown, which is one of the rainiest places in New York. The rainiest season is Spring when it rains 30% of the time and the driest is Autumn with only a 21% chance of a rainy day.

December is the rainiest month in San Francisco with 11.7 days of rain, and July is the driest month with only 0.6 rainy days. There are 72.3 rainy days annually in San Francisco, 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 4% chance of a rainy day.

An annual snowfall of 107.4 inches in Jamestown means that it is one of the snowiest places in New York.

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

January is the snowiest month in Jamestown with 30.5 inches of snow, and 7 months of the year have significant snowfall.

Any measurable snowfall is a rare occurance in San Francisco.