Historical weather in Chicago, United States
Chicago weather history for 2023-2025, with daily temperatures, precipitation, monthly summaries, and records from Open-Meteo archive data.
Interactive graph
Explore Chicago in the interactive graph
Open the full graph with Chicago already loaded, then add more cities to compare.
Weather summary
Across 2023-2025, Chicago averaged 15.2 C for daily highs and 7.3 C for daily lows across 1096 daily observations.
The warmest month was July 2025, with an average high of 28.5 C, while January 2025 had the lowest average low at -8.9 C.
The wettest month was July 2023, totaling 308.5 mm of precipitation.
The hottest day reached 37.0 C on August 24, 2023; the coldest night fell to -24.9 C on January 15, 2024.
Monthly summary table
| Year | Month | Avg low C | Avg high C | Rain and snow mm | Days |
|---|---|---|---|---|---|
| 2023 | January | -3.3 | 3.0 | 64.9 | 31 |
| 2023 | February | -4.0 | 5.0 | 90.2 | 28 |
| 2023 | March | -0.9 | 6.5 | 84.8 | 31 |
| 2023 | April | 4.4 | 15.1 | 71.3 | 30 |
| 2023 | May | 9.4 | 19.0 | 47.1 | 31 |
| 2023 | June | 15.1 | 24.2 | 62.0 | 30 |
| 2023 | July | 18.4 | 26.4 | 308.5 | 31 |
| 2023 | August | 18.3 | 25.7 | 111.9 | 31 |
| 2023 | September | 16.0 | 22.9 | 170.0 | 30 |
| 2023 | October | 9.1 | 16.3 | 126.2 | 31 |
| 2023 | November | 1.6 | 9.5 | 35.0 | 30 |
| 2023 | December | 0.5 | 6.3 | 73.5 | 31 |
| 2024 | January | -6.5 | -0.8 | 108.8 | 31 |
| 2024 | February | -1.7 | 7.7 | 16.6 | 29 |
| 2024 | March | 1.1 | 9.8 | 118.6 | 31 |
| 2024 | April | 6.0 | 14.6 | 109.7 | 30 |
| 2024 | May | 11.4 | 21.2 | 98.2 | 31 |
| 2024 | June | 17.9 | 27.4 | 72.7 | 30 |
| 2024 | July | 18.8 | 26.8 | 171.5 | 31 |
| 2024 | August | 18.7 | 27.3 | 70.1 | 31 |
| 2024 | September | 16.2 | 24.8 | 67.0 | 30 |
| 2024 | October | 9.7 | 19.5 | 53.8 | 31 |
| 2024 | November | 5.0 | 10.7 | 95.0 | 30 |
| 2024 | December | -3.1 | 2.9 | 48.8 | 31 |
| 2025 | January | -8.9 | -1.8 | 60.3 | 31 |
| 2025 | February | -6.5 | 0.4 | 23.7 | 28 |
| 2025 | March | 1.6 | 11.0 | 94.1 | 31 |
| 2025 | April | 5.5 | 14.1 | 64.7 | 30 |
| 2025 | May | 9.4 | 17.4 | 71.3 | 31 |
| 2025 | June | 17.7 | 27.0 | 124.0 | 30 |
| 2025 | July | 21.0 | 28.5 | 102.5 | 31 |
| 2025 | August | 19.3 | 26.2 | 42.5 | 31 |
| 2025 | September | 16.1 | 23.9 | 38.5 | 30 |
| 2025 | October | 11.0 | 17.8 | 56.3 | 31 |
| 2025 | November | 2.6 | 9.1 | 73.7 | 30 |
| 2025 | December | -6.2 | 0.7 | 80.7 | 31 |
Daily weather records
| Record | Date | Value |
|---|---|---|
| Hottest day | August 24, 2023 | 37.0 C |
| Coldest night | January 15, 2024 | -24.9 C |
| Wettest day | July 2, 2023 | 137.8 mm |
Related pages
- Chicago weather in 2023
- Chicago weather in 2024
- Chicago weather in 2025
- Chicago weather on this day
- Historical weather in Indianapolis, United States
- Historical weather in Columbus, United States
- Historical weather in Toronto, Canada
- Historical weather in Charlotte, United States
- Chicago vs New York City, United States: weather compared
Weather data source: Open-Meteo Archive API. City metadata source: GeoNames cities15000.