The remote server returned an error: (400) Bad Request.The remote server returned an error: (400) Bad Request. 2025 Compare Climate & Weather: West Chester, PA vs San Diego, CA

2025 Compare Climate & Weather:
West Chester, PA vs San Diego, CA

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Highlights

On average, there are 266 sunny days per year in San Diego. West Chester averages 206 sunny days per year. The US average is 205 sunny days.

San Diego, California gets 11.7 inches of rain, on average, per year. West Chester, Pennsylvania gets 48.7 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

San Diego averages 0 inches of snow per year. West Chester averages 22.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

San Diego, California
Summer High:
the July high is around 78.5 degrees
Winter Low: the January low is 45.6
Rain: averages 11.7 inches of rain a year
Snow: averages 0 inches of snow a year

West Chester, Pennsylvania
Summer High:
the July high is around 84.9 degrees
Winter Low: the January low is 21.4
Rain: averages 48.7 inches of rain a year
Snow: averages 22.1 inches of snow a year

BestPlaces Comfort Index
San Diego

The annual BestPlaces Comfort Index for San Diego is 9.2 (10=best), which means it is one of the most pleasant places in California.

9.2 / 10
June, October and September are the most pleasant months in San Diego, while December and January are the least comfortable months.

West Chester

The annual BestPlaces Comfort Index for West Chester is 7.2 (10=best), which means it is one of the most pleasant places in Pennsylvania.

7.2 / 10
June, September and August are the most pleasant months in West Chester, while January and February are the least comfortable months.

Average Monthly High / Low (°F)
MonthWest Chester, PASan Diego, CA
January39° / 21°67° / 46°
February42° / 23°66° / 48°
March51° / 31°67° / 50°
April62° / 40°70° / 53°
May72° / 50°71° / 57°
June81° / 60°74° / 60°
July85° / 64°79° / 64°
August83° / 63°80° / 65°
September76° / 55°79° / 63°
October65° / 43°75° / 57°
November54° / 34°71° / 50°
December43° / 26°66° / 45°
Hot, Freezing, Rainy, Snowy Days: West Chester / San Diego
MonthHot DaysFreezing DaysRainy DaysSnowy Days
January0 / 027 / 010 / 64 / 0
February0 / 024 / 09 / 73 / 0
March0 / 017 / 011 / 61 / 0
April0 / 05 / 011 / 40 / 0
May1 / 10 / 011 / 10 / 0
June2 / 10 / 010 / 10 / 0
July5 / 20 / 010 / 10 / 0
August3 / 30 / 09 / 00 / 0
September1 / 30 / 09 / 10 / 0
October0 / 23 / 09 / 20 / 0
November0 / 013 / 010 / 40 / 0
December0 / 024 / 010 / 62 / 0
July is the hottest month for West Chester with an average high temperature of 84.9°, which ranks it as warmer than most places in Pennsylvania. In West Chester, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for West Chester are September, June and August.

August is the hottest month for San Diego with an average high temperature of 80.2°, which ranks it as cooler than most places in California. In San Diego, there are 7 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for San Diego are July, September and August.
January has the coldest nighttime temperatures for West Chester with an average of 21.4°. This is warmer than most places in Pennsylvania.

December has the coldest nighttime temperatures for San Diego with an average of 45.3°. This is one of the warmest places in California.

In West Chester, there are 12.2 days annually when the high temperature is over 90°, which is hotter than most places in Pennsylvania.

In San Diego, there are 13.4 days annually when the high temperature is over 90°, which is cooler than most places in California.

In West Chester, there are 112.6 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Pennsylvania.

In San Diego, there are 0.7 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in California.

In West Chester, there are 0.7 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Pennsylvania.

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

September is the wettest month in West Chester with 4.9 inches of rain, and the driest month is February with 3.1 inches. The wettest season is Winter with 26% of yearly precipitation and 22% occurs in Spring, which is the driest season. The annual rainfall of 48.7 inches in West Chester means that it is one of the wettest places in Pennsylvania.


February is the wettest month in San Diego with 2.5 inches of rain, and the driest month is August with 0.0 inches. The wettest season is Spring with 55% of yearly precipitation and 2% occurs in Autumn, which is the driest season. The annual rainfall of 11.7 inches in San Diego means that it is drier than most places in California.

April is the rainiest month in West Chester with 11.3 days of rain, and September is the driest month with only 8.7 rainy days. There are 119.7 rainy days annually in West Chester, which is less rainy than most places in Pennsylvania. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 23% chance of a rainy day.

February is the rainiest month in San Diego with 6.8 days of rain, and August is the driest month with only 0.4 rainy days. There are 38.4 rainy days annually in San Diego, which is less rainy 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 22.1 inches in West Chester means that it is less snowy than most places in Pennsylvania.

There is rarely any recorded snowfall in San Diego, ranking it as one of the least snowy places in California.
February is the snowiest month in West Chester with 8.4 inches of snow, and 6 months of the year have significant snowfall.

Any measurable snowfall is a rare occurance in San Diego.

DID YOU KNOW?

Many people confuse Weather and Climate, but they are different. Weather refers to the conditions of the atmosphere over a short period of time, while Climate refers to the conditions of the atmosphere over a long period of time.

Weather, more specifically, refers to how the atmosphere behaves and its effects on life and human activities. Most people think of Weather in terms of what can be observed: temperature, humidity, precipitation, and cloudy/sunny conditions. Weather conditions constantly change on a minute-to-minute basis.

Climate is a record of the average weather conditions for a given place over a long period of time, often referred to as Climate Normals. A 30-year period of record is a common requirement to be considered a Climate Normal.

Reviews for West Chester    2 Reviews

Over 16 years ago

Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't  More

   |    Reply

Over 16 years ago

Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but  More

   |    Reply

Start Your Review of West Chester

Reviews for San Diego    2 Reviews

Over 16 years ago

Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't  More

   |    Reply

Over 16 years ago

Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but  More

   |    Reply

Start Your Review of San Diego

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