Lansing Air Quality in April

Across 2019–2025, Lansing's April air quality had a median AQI of 42 (Good) over 210 monitored days in the Lansing-East Lansing, MI area. 0.0% of April days (0 of 210) reached Unhealthy for Sensitive Groups or worse, and ground-level ozone set the daily AQI on 72.4% of days. The cleanest April on record here was 2020 (median AQI 39, 0 days above 100) and the worst was 2023 (median 44, 0 days above 100, peak AQI 87).

42
Median AQI
Good
0.0%
Days above AQI 100
0 of 210 days
57
90th percentile AQI
worst 1 day in 10
100
Peak AQI
Moderate
O3
Main pollutant
72.4% of days
81.0%
Good days
170 of 210
  • Good: 81.0%
  • Moderate: 19.0%
  • Unhealthy for Sensitive Groups: 0.0%
  • Unhealthy or worse: 0.0%

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QUICK ANSWER

How is the air in Lansing in April?

Good on a typical day: median AQI 42 across 2019–2025, with 0.0% of April days above AQI 100. Ground-level ozone is the main driver.

  • 81.0% of April days were Good (AQI 0–50), 19.0% Moderate (51–100).
  • 0 days of 210 reached AQI 101+; the April peak was 100.
  • Best April: 2020; worst April: 2023.

Frequently asked questions

What is the air quality like in Lansing in April?

Across 2019–2025, the median daily AQI in Lansing in April was 42 (Good). 81.0% of days were Good, 19.0% Moderate, and 0.0% reached Unhealthy for Sensitive Groups or worse, based on 210 monitored days in EPA's Air Quality System.

Is April a good time for outdoor exercise in Lansing?

A typical April day in Lansing sits in the Good range (median AQI 42), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of April days reached AQI 101+ in 2019–2025.

Which pollutant causes Lansing's April air quality problems?

Ground-level ozone set the daily AQI on 72.4% of April days in Lansing. The highest April AQI recorded in 2019–2025 was 100 (Moderate), in 2023.

Lansing April air quality, year by year

Lansing April air quality by year (Lansing-East Lansing, MI, EPA AQS daily AQI)

YearDays monitoredMedian AQIDays above 100Peak AQIMain pollutant
20193041064O3
2020cleanest3039052O3
20213043082PM2.5
20223042068O3
2023worst3044087O3
20243043054O3
202530430100O3

What April air means in Lansing

A typical April day in Lansing sits in the Good range (median AQI 42), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of April days reached AQI 101+ in 2019–2025.

April's median AQI of 42 is in line with Lansing's whole-year median of 40, so this period is neither a clean nor a dirty stretch for the area. Nationally, the median April AQI across every EPA metro area (100,677 metro-days, 2019–2025) is 44, so Lansing runs in line with the national April norm; 0.0% of its April days topped AQI 100 versus 0.7% nationally (about the same).

April is part of Lansing's spring season (March, April, May); the spring page pools all three months.

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 month 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.