2024 Compare Climate & Weather:
San Diego, CA vs West Chicago, IL
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Highlights
On average, there are 187 sunny days per year in West Chicago. San Diego averages 266 sunny days per year. The US average is 205 sunny days.
West Chicago, Illinois gets 37.8 inches of rain, on average, per year. San Diego, California gets 11.7 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.
West Chicago averages 30.5 inches of snow per year. San Diego averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.
Weather Highlights
West Chicago, Illinois
Summer High: the July high is around 85.2 degrees
Winter Low: the January low is 13.7
Rain: averages 37.8 inches of rain a year
Snow: averages 30.5 inches of snow a year
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
BESTPLACES COMFORT INDEX
West ChicagoThe annual BestPlaces Comfort Index for West Chicago is 6.8 (10=best), which means it is less comfortable than most places in Illinois.
6.8 / 10
June, September and August are the most pleasant months in West Chicago, while January and December are the least comfortable months.
San DiegoThe 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.
Today's Weather - San Diego, CA
3 PM PST
Mostly Sunny
72°F
| DAY | DESCRIPTION | HIGH / LOW | WIND |
|---|
| This Afternoon | Mostly Sunny | 72° / 60° | SW 10 mph |
| Wednesday | Patchy Fog then Mostly Sunny | 73° / 61° | SW 0 to 10 mph |
| Thursday | Patchy Fog then Partly Sunny | 75° / 61° | W 0 to 10 mph |
| Friday | Patchy Fog then Mostly Sunny | 77° / 61° | W 0 to 10 mph |
| Saturday | Patchy Fog then Mostly Sunny | 75° / 61° | NW 0 to 5 mph |
| Sunday | Patchy Fog then Mostly Sunny | 73° / 60° | S 5 to 10 mph |
| Monday | Patchy Fog then Partly Sunny | 72° / 60° | SW 5 to 10 mph |
Today's Weather - West Chicago, IL
3 PM PST
Scattered Showers And Thunderstorms
81°F
| DAY | DESCRIPTION | HIGH / LOW | WIND |
|---|
| This Afternoon | Scattered Showers And Thunderstorms | 85° / 67° | S 15 mph |
| Wednesday | Chance Showers And Thunderstorms | 79° / 59° | WSW 10 to 15 mph |
| Thursday | Sunny | 75° / 55° | W 10 to 20 mph |
| Friday | Mostly Sunny | 73° / 54° | WNW 10 to 15 mph |
| Saturday | Mostly Sunny then Slight Chance Rain Showers | 76° / 56° | WNW 10 to 15 mph |
| Sunday | Mostly Sunny | 72° / 54° | NW 10 to 15 mph |
| Monday | Mostly Sunny then Slight Chance Showers And Thunderstorms | 73° / 54° | N 5 to 10 mph |
Average Monthly High / Low (°F)
| Month | San Diego, CA | West Chicago, IL |
|---|
| January | 67° / 46° | 31° / 14° |
| February | 66° / 48° | 36° / 17° |
| March | 67° / 50° | 48° / 26° |
| April | 70° / 53° | 61° / 36° |
| May | 71° / 57° | 71° / 46° |
| June | 74° / 60° | 82° / 57° |
| July | 79° / 64° | 85° / 61° |
| August | 80° / 65° | 83° / 60° |
| September | 79° / 63° | 76° / 51° |
| October | 75° / 57° | 63° / 39° |
| November | 71° / 50° | 49° / 29° |
| December | 66° / 45° | 35° / 18° |
Hot, Freezing, Rainy, Snowy Days: San Diego / West Chicago
| Month | Hot Days | Freezing Days | Rainy Days | Snowy Days |
|---|
| January | 0 / 0 | 0 / 29 | 6 / 10 | 0 / 7 |
| February | 0 / 0 | 0 / 26 | 7 / 8 | 0 / 5 |
| March | 0 / 0 | 0 / 23 | 6 / 10 | 0 / 3 |
| April | 0 / 0 | 0 / 10 | 4 / 12 | 0 / 1 |
| May | 1 / 1 | 0 / 2 | 1 / 12 | 0 / 0 |
| June | 1 / 4 | 0 / 0 | 1 / 11 | 0 / 0 |
| July | 2 / 6 | 0 / 0 | 1 / 9 | 0 / 0 |
| August | 3 / 4 | 0 / 0 | 0 / 10 | 0 / 0 |
| September | 3 / 1 | 0 / 0 | 1 / 8 | 0 / 0 |
| October | 2 / 0 | 0 / 7 | 2 / 10 | 0 / 0 |
| November | 0 / 0 | 0 / 19 | 4 / 10 | 0 / 1 |
| December | 0 / 0 | 0 / 28 | 6 / 11 | 0 / 6 |
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.
July is the hottest month for West Chicago with an average high temperature of 85.2°, which ranks it as about average compared to other places in Illinois. In West Chicago, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for West Chicago are September, June and August.
December has the coldest nighttime temperatures for San Diego with an average of 45.3°. This is one of the warmest places in California.
January has the coldest nighttime temperatures for West Chicago with an average of 13.7°. This is colder than most places in Illinois.
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 Chicago, there are 16.3 days annually when the high temperature is over 90°, which is cooler than most places in Illinois.
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 Chicago, there are 143.8 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Illinois.
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.
In West Chicago, there are 8.5 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Illinois.
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.
August is the wettest month in West Chicago with 4.5 inches of rain, and the driest month is January with 1.6 inches. The wettest season is Autumn with 34% of yearly precipitation and 14% occurs in Spring, which is the driest season. The annual rainfall of 37.8 inches in West Chicago means that it is drier than most places in Illinois.
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.
May is the rainiest month in West Chicago with 12.0 days of rain, and February is the driest month with only 7.9 rainy days. There are 119.0 rainy days annually in West Chicago, which is rainier than most places in Illinois. 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.
There is rarely any recorded snowfall in San Diego, ranking it as one of the least snowy places in California.
An annual snowfall of 30.5 inches in West Chicago means that it is snowier than most places in Illinois.
Any measurable snowfall is a rare occurance in San Diego.
January is the snowiest month in West Chicago with 10.3 inches of snow, and 6 months of the year have significant snowfall.
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 San Diego 
2 Reviews
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
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
Start Your Review of San Diego
Reviews for West Chicago 2 Reviews
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
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
Start Your Review of West Chicago
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