2024 Compare Climate & Weather:
Chicago, IL vs Seattle, WA
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Highlights
On average, there are 152 sunny days per year in Seattle. Chicago averages 189 sunny days per year. The US average is 205 sunny days.
Seattle, Washington gets 38 inches of rain, on average, per year. Chicago, Illinois gets 38.2 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.
Seattle averages 4.6 inches of snow per year. Chicago averages 35.1 inches of snow per year. The US average is 27.8 inches of snow per year.
Weather Highlights
Seattle, Washington
Summer High: the July high is around 75.8 degrees
Winter Low: the January low is 37
Rain: averages 38 inches of rain a year
Snow: averages 4.6 inches of snow a year
Chicago, Illinois
Summer High: the July high is around 83.9 degrees
Winter Low: the January low is 19.2
Rain: averages 38.2 inches of rain a year
Snow: averages 35.1 inches of snow a year
BESTPLACES COMFORT INDEX
SeattleThe annual BestPlaces Comfort Index for Seattle is 7.5 (10=best), which means it is one of the most pleasant places in Washington.
7.5 / 10
August, July and September are the most pleasant months in Seattle, while December and January are the least comfortable months.
ChicagoThe annual BestPlaces Comfort Index for Chicago is 7.0 (10=best), which means it is about average compared to other places in Illinois.
7 / 10
September, June and August are the most pleasant months in Chicago, while January and December are the least comfortable months.
Today's Weather - Chicago, IL
12 AM PST
Showers And Thunderstorms Likely
63°F
| DAY | DESCRIPTION | HIGH / LOW | WIND |
|---|
| Overnight | Showers And Thunderstorms Likely | 61° / 63° | SW 0 to 10 mph |
| Friday Night | Mostly Clear | 48° / 72° | NE 5 to 10 mph |
| Saturday Night | Chance Showers And Thunderstorms | 52° / 63° | N 5 to 10 mph |
| Sunday Night | Mostly Cloudy then Slight Chance Rain Showers | 50° / 68° | NE 5 to 10 mph |
| Monday Night | Showers And Thunderstorms Likely | 58° / 77° | ESE 10 to 15 mph |
| Tuesday Night | Showers And Thunderstorms Likely | 59° / 77° | SW 15 mph |
| Wednesday Night | Chance Showers And Thunderstorms | 57° / 72° | WSW 10 to 15 mph |
Today's Weather - Seattle, WA
12 AM PST
Mostly Clear
52°F
| DAY | DESCRIPTION | HIGH / LOW | WIND |
|---|
| Overnight | Mostly Clear | 44° / 66° | SE 5 mph |
| Friday Night | Light Rain Likely | 49° / 52° | SSW 2 to 9 mph |
| Saturday Night | Light Rain Likely | 46° / 53° | S 9 mph |
| Sunday Night | Light Rain | 47° / 56° | SSW 16 mph |
| Monday Night | Showers And Thunderstorms Likely then Chance Light Rain | 43° / 57° | S 8 to 13 mph |
| Tuesday Night | Chance Light Rain then Mostly Cloudy | 43° / 58° | E 9 mph |
| Wednesday Night | Partly Cloudy | 44° / 64° | NNE 6 to 9 mph |
Average Monthly High / Low (°F)
| Month | Chicago, IL | Seattle, WA |
|---|
| January | 32° / 19° | 48° / 37° |
| February | 37° / 23° | 51° / 37° |
| March | 47° / 31° | 54° / 40° |
| April | 58° / 41° | 59° / 43° |
| May | 69° / 51° | 65° / 48° |
| June | 79° / 61° | 70° / 53° |
| July | 84° / 68° | 76° / 57° |
| August | 82° / 67° | 76° / 57° |
| September | 75° / 59° | 71° / 53° |
| October | 63° / 47° | 60° / 46° |
| November | 49° / 36° | 52° / 40° |
| December | 36° / 24° | 46° / 36° |
Hot, Freezing, Rainy, Snowy Days: Chicago / Seattle
| Month | Hot Days | Freezing Days | Rainy Days | Snowy Days |
|---|
| January | 0 / 0 | 27 / 6 | 10 / 18 | 7 / 1 |
| February | 0 / 0 | 23 / 5 | 8 / 15 | 5 / 1 |
| March | 0 / 0 | 17 / 2 | 11 / 17 | 4 / 0 |
| April | 0 / 0 | 3 / 0 | 11 / 15 | 1 / 0 |
| May | 1 / 0 | 0 / 0 | 12 / 12 | 0 / 0 |
| June | 3 / 0 | 0 / 0 | 10 / 10 | 0 / 0 |
| July | 6 / 1 | 0 / 0 | 10 / 6 | 0 / 0 |
| August | 4 / 0 | 0 / 0 | 10 / 5 | 0 / 0 |
| September | 1 / 0 | 0 / 0 | 9 / 8 | 0 / 0 |
| October | 0 / 0 | 1 / 0 | 10 / 13 | 0 / 0 |
| November | 0 / 0 | 10 / 3 | 11 / 19 | 2 / 0 |
| December | 0 / 0 | 24 / 7 | 11 / 18 | 6 / 1 |
July is the hottest month for Chicago with an average high temperature of 83.9°, which ranks it as cooler than most places in Illinois. In Chicago, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Chicago are June, September and August.
August is the hottest month for Seattle with an average high temperature of 76.3°, which ranks it as cooler than most places in Washington. In Seattle, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Seattle are August, July and September.
January has the coldest nighttime temperatures for Chicago with an average of 19.2°. This is warmer than most places in Illinois.
December has the coldest nighttime temperatures for Seattle with an average of 35.9°. This is one of the warmest places in Washington.
In Chicago, there are 13.6 days annually when the high temperature is over 90°, which is cooler than most places in Illinois.
In Seattle, there are 1.7 days annually when the high temperature is over 90°, which is cooler than most places in Washington.
In Chicago, there are 103.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Illinois.
In Seattle, there are 24.0 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Washington.
In Chicago, there are 4.0 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Illinois.
In Seattle, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Washington.
August is the wettest month in Chicago with 4.2 inches of rain, and the driest month is January with 2.0 inches. The wettest season is Autumn with 31% of yearly precipitation and 17% occurs in Spring, which is the driest season. The annual rainfall of 38.2 inches in Chicago means that it is drier than most places in Illinois.
November is the wettest month in Seattle with 6.2 inches of rain, and the driest month is July with 0.8 inches. The wettest season is Spring with 39% of yearly precipitation and 9% occurs in Autumn, which is the driest season. The annual rainfall of 38.0 inches in Seattle means that it is about average compared to other places in Washington.
May is the rainiest month in Chicago with 11.5 days of rain, and February is the driest month with only 8.4 rainy days. There are 124.8 rainy days annually in Chicago, which is one of the rainiest places in Illinois. The rainiest season is Summer when it rains 27% of the time and the driest is Spring with only a 24% chance of a rainy day.
November is the rainiest month in Seattle with 18.7 days of rain, and August is the driest month with only 5.3 rainy days. There are 155.3 rainy days annually in Seattle, which is about average compared to other places in Washington. The rainiest season is Spring when it rains 33% of the time and the driest is Autumn with only a 13% chance of a rainy day.
An annual snowfall of 35.1 inches in Chicago means that it is one of the snowiest places in Illinois.
An annual snowfall of 4.6 inches in Seattle means that it is about average compared to other places in Washington.
January is the snowiest month in Chicago with 11.0 inches of snow, and 6 months of the year have significant snowfall.
December is the snowiest month in Seattle with 2.1 inches of snow, and 4 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 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 Chicago
Reviews for Seattle 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 Seattle
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