Kansas City Air Quality in April

Across 2019–2025, Kansas City's April air quality had a median AQI of 54 (Moderate) over 210 monitored days in the Kansas City, MO-KS area. 1.0% of April days (2 of 210) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 46.7% of days. The cleanest April on record here was 2022 (median AQI 52, 0 days above 100) and the worst was 2020 (median 55, 1 day above 100, peak AQI 108).

54
Median AQI
Moderate
1.0%
Days above AQI 100
2 of 210 days
71
90th percentile AQI
worst 1 day in 10
108
Peak AQI
Unhealthy for Sensitive Groups
PM2.5
Main pollutant
46.7% of days
40.0%
Good days
84 of 210
  • Good: 40.0%
  • Moderate: 59.0%
  • Unhealthy for Sensitive Groups: 1.0%
  • Unhealthy or worse: 0.0%

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QUICK ANSWER

How is the air in Kansas City in April?

Moderate on a typical day: median AQI 54 across 2019–2025, with 1.0% of April days above AQI 100. Fine particulate matter (PM2.5) is the main driver.

  • 40.0% of April days were Good (AQI 0–50), 59.0% Moderate (51–100).
  • 2 days of 210 reached AQI 101+; the April peak was 108.
  • Best April: 2022; worst April: 2020.

Frequently asked questions

What is the air quality like in Kansas City in April?

Across 2019–2025, the median daily AQI in Kansas City in April was 54 (Moderate). 40.0% of days were Good, 59.0% Moderate, and 1.0% 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 Kansas City?

A typical April day in Kansas City is Moderate (median AQI 54): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 100 of April days (1.0%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.

Which pollutant causes Kansas City's April air quality problems?

Fine particulate matter (PM2.5) set the daily AQI on 46.7% of April days in Kansas City. The highest April AQI recorded in 2019–2025 was 108 (Unhealthy for Sensitive Groups), in 2020.

Kansas City April air quality, year by year

Kansas City April air quality by year (Kansas City, MO-KS, EPA AQS daily AQI)

YearDays monitoredMedian AQIDays above 100Peak AQIMain pollutant
20193055092O3
2020worst30551108PM2.5
20213056097PM2.5
2022cleanest3052064PM2.5
20233054080O3
202430501108O3
20253054097O3

What April air means in Kansas City

A typical April day in Kansas City is Moderate (median AQI 54): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 100 of April days (1.0%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.

April's median AQI of 54 is in line with Kansas City's whole-year median of 54, 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 Kansas City runs above the national April norm; 1.0% of its April days topped AQI 100 versus 0.7% nationally (about the same).

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

Activity-specific thresholds: running, cycling, kids' sports.

Right now in Kansas City

The latest EPA AirNow observation puts Kansas City's AQI at 64 (PM2.5). The figures above are multi-year month statistics, not today's reading.

View current Kansas City air quality →

Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Kansas City, MO-KS), 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.