Hot days (max ≥ +30 °C): ranking of metro areas in Illinois
Order: highest value first. Lower is better.
Hot days (max ≥ +30 °C): ranking of metro areas in Illinois: Peoria ranks first (61 days per year) and Rockford last (45 days per year). The median across 3 the state's metro areas is 51 days per year. Observation period: 2016-2025. Source: NOAA NCEI, GHCN-Daily.
Average number of days per year when the daily maximum reached +30 °C or higher.
Data quality: measured at a single station, often at an airport; not an average for the metro area; years with incomplete data are excluded.
| # | Metro area | Value | Period |
|---|---|---|---|
| 1 | Peoria | 61 days per year | 2016-2025 |
| 2 | Chicago | 51 days per year | 2016-2025 |
| 3 | Rockford | 45 days per year | 2016-2025 |
Only places with a value for the indicator are ranked; a gap is not a zero. A ranking on one indicator is not an assessment of a place to live.