SmogRank / United States / Minnesota / Mankato
Mankato, month by month
Mankato has a measured daily mean on 787 days since 3 July 2024. Its worst month was August 2025, at 69 US AQI (18.5 µg/m³), 231st of 2,901 cities on that month's world ranking. Its cleanest was September 2026, at 29 US AQI (5.2 µg/m³).
Every month since 2024
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
1 month
| Month | Why |
|---|---|
| Dec 2024 | 3 of 31 days measured; a month needs 22. The others: 28 with under 18 hours of readings or readings that failed our checks. |
A day counts once 18 hours of it are measured; a month needs 70% of its days.
Mankato's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| August 2025 | 6918.5 µg/m³ | 231stof 2,901 | Northern United States and Canada, August 2025 North-eastern United States and Canada, 29 July to 9 August 2025 |
| July 2025 | 6818.1 µg/m³ | 252ndof 2,889 | North-eastern United States and Canada, 29 July to 9 August 2025 Northern United States and Canada, July 2025 |
| June 2025 | 6214.8 µg/m³ | 465thof 2,508 | Northern United States and Canada, June 2025 Northern United States and Canada, May and June 2025 |
| September 2025 | 5913.4 µg/m³ | 392ndof 3,104 | – |
| July 2026 | 5812.7 µg/m³ | 775thof 2,784 | Northern United States and Canada, July 2026 |
| August 2026 | 5611.6 µg/m³ | 614thof 2,896 | – |
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.
Mankato's worst days
Daily means, the highest since 3 Jul 2024; 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, Mankato, United States, 3 Jul 2024 – 11 Oct 2026. Monitor data from AirNow, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/us/mankato/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.
Mankato now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-12 20:07 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).