SmogRank / United States / Michigan / Kalamazoo

Kalamazoo, month by month

Kalamazoo has a measured daily mean on 1,353 days since 1 January 2023. Its worst month was June 2023, at 98 US AQI (34.3 µg/m³), 50th of 1,603 cities on that month's world ranking. Its cleanest was April 2023, at 21 US AQI (3.7 µg/m³). 2025 averaged 51 US AQI (9.3 µg/m³), against 47 US AQI (8.4 µg/m³) in 2024.

Every month since 2023

Each square is a month's mean PM2.5 in US AQI from Kalamazoo's measured days, with its place on that month's world ranking under it. A month has a mean once 70% of its days are measured, the rule the monthly rankings use; under that, the square gives the days measured. Each square opens that month's ranking with Kalamazoo marked; each year, the year's. A dashed square is the running month, so far.
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

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

Kalamazoo's worst months

MonthUS AQIDays measuredWorld rankEpisode
June 2023 9834.3 µg/m³24 of 3050thof 1,603Eastern United States and Canada, June and July 2023
Eastern United States and Canada, May and June 2023
July 2026 8326.4 µg/m³31 of 31192ndof 2,784Northern United States and Canada, July 2026
June 2025 6315.4 µg/m³30 of 30411thof 2,508Northern United States and Canada, June 2025
Northern United States and Canada, May and June 2025
July 2023 6315.3 µg/m³29 of 31135thof 1,432Northern United States and Canada, July 2023
United States and Canada, July 2023and 1 more
July 2025 6114.3 µg/m³31 of 31469thof 2,889North-eastern United States and Canada, 29 July to 9 August 2025
Northern United States, July 2025and 1 more
August 2023 6013.8 µg/m³29 of 31232ndof 1,980–

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.

Kalamazoo's worst days

DayUS AQIEpisode
16 Jul 2026 278203.0 µg/m³Northern United States and Canada, July 2026
17 Jul 2026 264189.0 µg/m³Northern United States and Canada, July 2026
27 Jun 2023 223148.0 µg/m³Eastern United States and Canada, June and July 2023
28 Jun 2023 196119.0 µg/m³Eastern United States and Canada, June and July 2023
29 Jun 2023 191112.0 µg/m³Eastern United States and Canada, June and July 2023
31 Jul 2025 15561.6 µg/m³North-eastern United States and Canada, 29 July to 9 August 2025
25 Jul 2023 13750.3 µg/m³Northern United States and Canada, July 2023
6 Jun 2025 13047.4 µg/m³Northern United States and Canada, May and June 2025
20 Jul 2026 12745.9 µg/m³Northern United States and Canada, July 2026
19 Jul 2026 12243.9 µg/m³Northern United States and Canada, July 2026

Daily means, the highest since 1 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, Kalamazoo, United States, 1 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/kalamazoo/history (accessed 12 Oct 2026).

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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.

Kalamazoo now: the last 24 hours, its ranks today and the last 12 months day by day.

Updated 2026-10-12 21:07 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).