Lansing Air Quality in Summer
Across 2019–2025, Lansing's summer (June–August) air quality had a median AQI of 49 (Good) over 644 monitored days in the Lansing-East Lansing, MI area. 2.9% of summer days (19 of 644) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 58.7% of days. The cleanest summer on record here was 2019 (median AQI 44, 0 days above 100) and the worst was 2023 (median 61, 10 days above 100, peak AQI 194).
- Good: 53.3%
- Moderate: 43.8%
- Unhealthy for Sensitive Groups: 2.0%
- Unhealthy or worse: 0.9%
Improve Indoor Air Quality
Even with good outdoor air in Lansing, indoor PM2.5, dust and allergens build up. A True-HEPA purifier keeps a bedroom or office consistently clean.
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How is the air in Lansing in summer?
Good on a typical day: median AQI 49 across 2019–2025, with 2.9% of summer days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓53.3% of summer days were Good (AQI 0–50), 43.8% Moderate (51–100).
- ✓19 days of 644 reached AQI 101+; the summer peak was 194.
- ✓Cleanest month: August; worst month: June.
Frequently asked questions
What is the air quality like in Lansing in summer?▾
Across 2019–2025, the median daily AQI in Lansing in summer was 49 (Good). 53.3% of days were Good, 43.8% Moderate, and 2.9% reached Unhealthy for Sensitive Groups or worse, based on 644 monitored days in EPA's Air Quality System.
Is summer a good time for outdoor exercise in Lansing?▾
A typical summer day in Lansing sits in the Good range (median AQI 49), so running, cycling and children's outdoor play are fine for everyone on most days; about 1 day in 34 of summer days (2.9%) reached AQI 101+ in 2019–2025.
Which pollutant causes Lansing's summer air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 58.7% of summer days in Lansing. The highest summer AQI recorded in 2019–2025 was 194 (Unhealthy), in 2023.
Lansing summer air quality, year by year
Lansing summer air quality by year (Lansing-East Lansing, MI, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019cleanest | 92 | 44 | 0 | 67 | PM2.5 |
| 2020 | 92 | 46 | 1 | 151 | O3 |
| 2021 | 92 | 52 | 0 | 100 | PM2.5 |
| 2022 | 92 | 47 | 0 | 93 | O3 |
| 2023worst | 92 | 61 | 10 | 194 | PM2.5 |
| 2024 | 92 | 44 | 0 | 74 | PM2.5 |
| 2025 | 92 | 52 | 8 | 153 | PM2.5 |
What summer air means in Lansing
A typical summer day in Lansing sits in the Good range (median AQI 49), so running, cycling and children's outdoor play are fine for everyone on most days; about 1 day in 34 of summer days (2.9%) reached AQI 101+ in 2019–2025.
Summer's median AQI of 49 is above Lansing's whole-year median of 40, making it one of the area's dirtier periods. Nationally, the median Summer AQI across every EPA metro area (308,645 metro-days, 2019–2025) is 46, so Lansing runs in line with the national Summer norm; 2.9% of its Summer days topped AQI 100 versus 3.6% nationally (about the same).
Within the season, August is the cleanest month (median AQI 47, 1.4% of days above 100) and June the worst (median 49, 4.7% above 100).
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Lansing
The latest EPA AirNow observation puts Lansing's AQI at 28 (PM2.5). The figures above are multi-year season statistics, not today's reading.
View current Lansing air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Lansing-East Lansing, MI), 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.