The warmest month in Chicago is July, with an average high of 27.1°C and an average low of 19.5°C. The coldest month is January, with an average high of 0.1°C and an average low of -6.7°C. Between 2016 and 2025, the highest temperature recorded was 37.4°C (June 21, 2022) and the lowest was -32.5°C (January 31, 2019).
| Month | Avg. high | Avg. low | Precipitation |
|---|---|---|---|
| January | 0.1°C | -6.7°C | 66 mm |
| February | 2.6°C | -5.8°C | 59 mm |
| March | 7.8°C | -0.2°C | 94 mm |
| April | 12.7°C | 4.1°C | 99 mm |
| May | 18.7°C | 10.1°C | 125 mm |
| June | 25.5°C | 16.6°C | 111 mm |
| July | 27.1°C | 19.5°C | 150 mm |
| August | 26.6°C | 19.1°C | 105 mm |
| September | 23.8°C | 16.3°C | 92 mm |
| October | 16.8°C | 9.3°C | 124 mm |
| November | 8.8°C | 1.8°C | 60 mm |
| December | 3.3°C | -3.4°C | 60 mm |
Based on daily historical weather data 2016–2025. Weather data by Open-Meteo.com.
Explore detailed temperature patterns in Chicago, United States through interactive candlestick charts. View historical weather data with daily temperature ranges, trends, and variations. Whether you're planning a trip to Chicago or analyzing local climate patterns, our unique visualization makes temperature data easy to understand. Get insights into Chicago's weather patterns from hourly updates to yearly historical data.