Aurora, IL Air Quality in June
Across 2019–2025, Aurora's June air quality had a median AQI of 77 (Moderate) over 210 monitored days in the Chicago-Naperville-Elgin, IL-IN-WI area. 25.2% of June days (53 of 210) reached Unhealthy for Sensitive Groups or worse, and ground-level ozone set the daily AQI on 59.0% of days. The cleanest June on record here was 2024 (median AQI 68, 3 days above 100) and the worst was 2023 (median 106, 18 days above 100, peak AQI 246).
- Good: 9.0%
- Moderate: 65.7%
- Unhealthy for Sensitive Groups: 19.5%
- Unhealthy or worse: 5.7%
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How is the air in Aurora in June?
Moderate on a typical day: median AQI 77 across 2019–2025, with 25.2% of June days above AQI 100. Ground-level ozone is the main driver.
- ✓9.0% of June days were Good (AQI 0–50), 65.7% Moderate (51–100).
- ✓53 days of 210 reached AQI 101+; the June peak was 246.
- ✓Best June: 2024; worst June: 2023.
Frequently asked questions
What is the air quality like in Aurora in June?▾
Across 2019–2025, the median daily AQI in Aurora in June was 77 (Moderate). 9.0% of days were Good, 65.7% Moderate, and 25.2% reached Unhealthy for Sensitive Groups or worse, based on 210 monitored days in EPA's Air Quality System.
Is June a good time for outdoor exercise in Aurora?▾
A typical June day in Aurora is Moderate (median AQI 77): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 4 of June days (25.2%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
Which pollutant causes Aurora's June air quality problems?▾
Ground-level ozone set the daily AQI on 59.0% of June days in Aurora. The highest June AQI recorded in 2019–2025 was 246 (Very Unhealthy), in 2023.
Aurora June air quality, year by year
Aurora June air quality by year (Chicago-Naperville-Elgin, IL-IN-WI, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 30 | 69 | 4 | 129 | PM2.5 |
| 2020 | 30 | 77 | 8 | 197 | O3 |
| 2021 | 30 | 81 | 5 | 147 | O3 |
| 2022 | 30 | 71 | 7 | 164 | O3 |
| 2023worst | 30 | 106 | 18 | 246 | O3 |
| 2024cleanest | 30 | 68 | 3 | 143 | O3 |
| 2025 | 30 | 81 | 8 | 154 | O3 |
What June air means in Aurora
A typical June day in Aurora is Moderate (median AQI 77): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 4 of June days (25.2%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
June's median AQI of 77 is above Aurora's whole-year median of 60, making it one of the area's dirtier periods. Nationally, the median June AQI across every EPA metro area (100,635 metro-days, 2019–2025) is 46, so Aurora runs above the national June norm; 25.2% of its June days topped AQI 100 versus 3.7% nationally (above average).
June is part of Aurora's summer season (June, July, August); the summer page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Aurora
The latest EPA AirNow observation puts Aurora's AQI at 39 (PM2.5). The figures above are multi-year month statistics, not today's reading.
View current Aurora air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Chicago-Naperville-Elgin, IL-IN-WI), 2019–2025. Daily AQI per CBSA is the highest AQI reported by any monitor in the area that day; the defining parameter is the pollutant that set it. Month and season statistics pool every such day in the period across all years listed. Retrieved 2026-09-09.