2024 Compare Climate & Weather:
Chicago, IL vs Dayton, OH
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Highlights
On average, there are 176 sunny days per year in Dayton. Chicago averages 189 sunny days per year. The US average is 205 sunny days.
Dayton, Ohio gets 40.4 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.
Dayton averages 17 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
Dayton, Ohio
Summer High: the July high is around 85 degrees
Winter Low: the January low is 21.1
Rain: averages 40.4 inches of rain a year
Snow: averages 17 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
DaytonThe annual BestPlaces Comfort Index for Dayton is 7.1 (10=best), which means it is more comfortable than most places in Ohio.
7.1 / 10
September, June and May are the most pleasant months in Dayton, while January and December 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
1 AM PST
Showers And Thunderstorms
65°F
| DAY | DESCRIPTION | HIGH / LOW | WIND |
|---|
| Overnight | Showers And Thunderstorms | 61° / 71° | SSW 10 to 15 mph |
| Monday Night | Partly Cloudy | 51° / 70° | WSW 5 to 15 mph |
| Tuesday Night | Partly Cloudy then Chance Rain Showers | 57° / 76° | SSE 5 to 10 mph |
| Wednesday Night | Chance Rain Showers then Chance Showers And Thunderstorms | 56° / 79° | E 10 mph |
| Thursday Night | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 60° / 72° | S 15 mph |
| Friday Night | Chance Showers And Thunderstorms | 53° / 70° | W 10 to 15 mph |
| Saturday Night | Slight Chance Rain Showers | 53° / 74° | SW 10 to 15 mph |
Today's Weather - Dayton, OH
1 AM PST
Mostly Clear
66°F
| DAY | DESCRIPTION | HIGH / LOW | WIND |
|---|
| Overnight | Mostly Clear | 64° / 82° | S 13 mph |
| Monday Night | Chance Showers And Thunderstorms then Showers And Thunderstorms | 61° / 75° | SW 7 to 15 mph |
| Tuesday Night | Slight Chance Rain Showers then Mostly Clear | 53° / 82° | W 3 to 10 mph |
| Wednesday Night | Partly Cloudy | 58° / 85° | S 6 to 9 mph |
| Thursday Night | Partly Cloudy then Slight Chance Rain Showers | 63° / 80° | S 12 mph |
| Friday Night | Showers And Thunderstorms Likely | 58° / 75° | SW 12 to 16 mph |
| Saturday Night | Chance Rain Showers | 54° / 78° | W 10 mph |
Average Monthly High / Low (°F)
| Month | Chicago, IL | Dayton, OH |
|---|
| January | 32° / 19° | 36° / 21° |
| February | 37° / 23° | 40° / 24° |
| March | 47° / 31° | 50° / 32° |
| April | 58° / 41° | 63° / 42° |
| May | 69° / 51° | 73° / 52° |
| June | 79° / 61° | 82° / 62° |
| July | 84° / 68° | 85° / 65° |
| August | 82° / 67° | 84° / 64° |
| September | 75° / 59° | 77° / 56° |
| October | 63° / 47° | 65° / 45° |
| November | 49° / 36° | 52° / 35° |
| December | 36° / 24° | 39° / 25° |
Hot, Freezing, Rainy, Snowy Days: Chicago / Dayton
| Month | Hot Days | Freezing Days | Rainy Days | Snowy Days |
|---|
| January | 0 / 0 | 27 / 25 | 10 / 12 | 7 / 5 |
| February | 0 / 0 | 23 / 22 | 8 / 10 | 5 / 4 |
| March | 0 / 0 | 17 / 17 | 11 / 11 | 4 / 2 |
| April | 0 / 0 | 3 / 4 | 11 / 13 | 1 / 1 |
| May | 1 / 0 | 0 / 0 | 12 / 13 | 0 / 0 |
| June | 3 / 4 | 0 / 0 | 10 / 11 | 0 / 0 |
| July | 6 / 6 | 0 / 0 | 10 / 10 | 0 / 0 |
| August | 4 / 5 | 0 / 0 | 10 / 8 | 0 / 0 |
| September | 1 / 2 | 0 / 0 | 9 / 8 | 0 / 0 |
| October | 0 / 0 | 1 / 2 | 10 / 9 | 0 / 0 |
| November | 0 / 0 | 10 / 12 | 11 / 11 | 2 / 1 |
| December | 0 / 0 | 24 / 23 | 11 / 12 | 6 / 3 |
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.
July is the hottest month for Dayton with an average high temperature of 85.0°, which ranks it as warmer than most places in Ohio. In Dayton, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Dayton are September, June and May.
January has the coldest nighttime temperatures for Chicago with an average of 19.2°. This is warmer than most places in Illinois.
January has the coldest nighttime temperatures for Dayton with an average of 21.1°. This is warmer than most places in Ohio.
In Chicago, there are 13.6 days annually when the high temperature is over 90°, which is cooler than most places in Illinois.
In Dayton, there are 17.2 days annually when the high temperature is over 90°, which is hotter than most places in Ohio.
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 Dayton, there are 104.8 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Ohio.
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 Dayton, there are 2.8 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Ohio.
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.
May is the wettest month in Dayton with 4.7 inches of rain, and the driest month is February with 2.3 inches. The wettest season is Summer with 30% of yearly precipitation and 20% occurs in Spring, which is the driest season. The annual rainfall of 40.4 inches in Dayton means that it is wetter than most places in Ohio.
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.
May is the rainiest month in Dayton with 13.2 days of rain, and August is the driest month with only 8.0 rainy days. There are 128.8 rainy days annually in Dayton, which is about average compared to other places in Ohio. The rainiest season is Summer when it rains 29% of the time and the driest is Winter with only a 22% 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 17.0 inches in Dayton means that it is less snowy than most places in Ohio.
January is the snowiest month in Chicago with 11.0 inches of snow, and 6 months of the year have significant snowfall.
January is the snowiest month in Dayton with 5.9 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 Dayton 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 Dayton
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