SmogRank / United States / Kansas / Kansas City
Kansas City, month by month
Kansas City, Kansas has a measured daily mean on 1,308 days since 21 January 2023. Its worst month was September 2023, at 61 US AQI (14.5 µg/m³), 191st of 2,176 cities on that month's world ranking. Its cleanest was April 2026, at 34 US AQI (6.1 µg/m³). 2025 averaged 48 US AQI (8.6 µg/m³), against 49 US AQI (8.9 µg/m³) in 2024.
Every month since 2023
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
Months without a mean, and why
3 months
| Month | Why |
|---|---|
| Jul 2025 | 15 of 31 days measured; a month needs 22. The others: 16 with under 18 hours of readings or readings that failed our checks. |
| Jun 2025 | 10 of 30 days measured; a month needs 21. The others: 20 with under 18 hours of readings or readings that failed our checks. |
| Jan 2023 | 11 of 31 days measured; a month needs 22. |
A day counts once 18 hours of it are measured; a month needs 70% of its days.
Kansas City's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| September 2023 | 6114.5 µg/m³ | 191stof 2,176 | Northern United States, September 2023 Northern United States and Canada, August and September 2023 |
| June 2023 | 6014.0 µg/m³ | 439thof 1,603 | Eastern United States and Canada, May and June 2023 |
| January 2024 | 5813.1 µg/m³ | 597thof 2,385 | – |
| July 2026 | 5813.0 µg/m³ | 730thof 2,784 | Northern United States, July 2026 |
| March 2024 | 5812.8 µg/m³ | 243rdof 1,698 | – |
| August 2025 | 5611.8 µg/m³ | 823rdof 2,901 | North-eastern United States and Canada, 29 July to 9 August 2025 |
Monthly means over the days measured; finished months only. World rank: its place on that month's world ranking of every city with enough days. Each month opens that ranking.
Kansas City's worst days
| Day | US AQI | Episode |
|---|---|---|
| 1 Aug 2025 | 15358.6 µg/m³ | North-eastern United States and Canada, 29 July to 9 August 2025 |
| 7 Sept 2023 | 15257.5 µg/m³ | Northern United States and Canada, August and September 2023 |
| 14 Mar 2025 | 14452.9 µg/m³ | United States and Mexico, March 2025 |
| 6 Sept 2023 | 12344.5 µg/m³ | Northern United States and Canada, August and September 2023 |
| 4 Jul 2026 | 11440.9 µg/m³ | Northern United States, July 2026 |
| 2 Aug 2025 | 11340.5 µg/m³ | North-eastern United States and Canada, 29 July to 9 August 2025 |
| 21 Feb 2024 | 10838.4 µg/m³ | – |
| 5 Jul 2026 | 10537.3 µg/m³ | Northern United States, July 2026 |
| 18 Jan 2024 | 9834.1 µg/m³ | – |
| 17 Sept 2023 | 9331.5 µg/m³ | Northern United States, September 2023 |
Daily means, the highest since 21 Jan 2023; the WHO's daily guideline is 15 µg/m³. Each date opens that day's world ranking, and each episode the bad-air spell it was part of.
Use this history
SmogRank, PM2.5 monthly and daily means, Kansas City, Kansas, United States, 21 Jan 2023 – 11 Oct 2026. Monitor data from AirNow, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/us/kansas-city-kansas/history (accessed 12 Oct 2026).
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.
Kansas City now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-12 19:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index. Some low-cost readings: Sensor.Community, ODbL (data and licence). Some readings: Uzhydromet (Uzbekistan's Hydrometeorological Service); Department of Environment, Nepal; Vietnam's government monitors; Aurassure; Umhverfisstofnun (Environment Agency of Iceland); RMCAB (Secretaría Distrital de Ambiente, Bogotá); Love My Air (City and County of Denver), no reuse terms published (why we use them).