Kansas City Air Quality in March
Across 2019–2025, Kansas City's March air quality had a median AQI of 54 (Moderate) over 217 monitored days in the Kansas City, MO-KS area. 1.4% of March days (3 of 217) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 67.7% of days. The cleanest March on record here was 2019 (median AQI 54, 0 days above 100) and the worst was 2021 (median 57, 2 days above 100, peak AQI 115).
- Good: 37.8%
- Moderate: 60.8%
- Unhealthy for Sensitive Groups: 0.9%
- Unhealthy or worse: 0.5%
Extra Protection for Kansas City Homes
Air quality in Kansas City is moderate (AQI 64), with fine particles (PM2.5) the main concern. A True-HEPA purifier gives sensitive groups — kids, seniors and anyone with asthma or allergies — cleaner air indoors on days like today.
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How is the air in Kansas City in March?
Moderate on a typical day: median AQI 54 across 2019–2025, with 1.4% of March days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓37.8% of March days were Good (AQI 0–50), 60.8% Moderate (51–100).
- ✓3 days of 217 reached AQI 101+; the March peak was 293.
- ✓Best March: 2019; worst March: 2021.
Frequently asked questions
What is the air quality like in Kansas City in March?▾
Across 2019–2025, the median daily AQI in Kansas City in March was 54 (Moderate). 37.8% of days were Good, 60.8% Moderate, and 1.4% reached Unhealthy for Sensitive Groups or worse, based on 217 monitored days in EPA's Air Quality System.
Is March a good time for outdoor exercise in Kansas City?▾
A typical March 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 71 of March days (1.4%) 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 March air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 67.7% of March days in Kansas City. The highest March AQI recorded in 2019–2025 was 293 (Very Unhealthy), in 2021.
Kansas City March air quality, year by year
Kansas City March air quality by year (Kansas City, MO-KS, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019cleanest | 31 | 54 | 0 | 78 | PM2.5 |
| 2020 | 31 | 54 | 0 | 95 | PM2.5 |
| 2021worst | 31 | 57 | 2 | 115 | PM2.5 |
| 2022 | 31 | 56 | 0 | 93 | PM2.5 |
| 2023 | 31 | 54 | 0 | 70 | PM2.5 |
| 2024 | 31 | 57 | 0 | 84 | PM2.5 |
| 2025 | 31 | 51 | 1 | 293 | O3 |
What March air means in Kansas City
A typical March 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 71 of March days (1.4%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
March'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 March AQI across every EPA metro area (102,455 metro-days, 2019–2025) is 42, so Kansas City runs above the national March norm; 1.4% of its March days topped AQI 100 versus 0.4% nationally (about the same).
March 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.