SmogRank / United States / Michigan / Manistee

Manistee, month by month

Manistee has a measured daily mean on 671 days since 3 December 2024. Its worst month was July 2026, at 96 US AQI (33.2 µg/m³), 102nd of 2,784 cities on that month's world ranking. Its cleanest was May 2025, at 18 US AQI (3.3 µg/m³).

Every month since 2024

2024too few days for a mean (a year needs 257)29 days measured
JanFebMarAprMayJunJulAugSepOctNovDec26#2,331
Each square is a month's mean PM2.5 in US AQI from Manistee'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 Manistee 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

Manistee's worst months

MonthUS AQIDays measuredWorld rankEpisode
July 2026 9633.2 µg/m³31 of 31102ndof 2,784Northern United States and Canada, July 2026
July 2025 6416.2 µg/m³31 of 31325thof 2,889North-eastern United States and Canada, 29 July to 9 August 2025
North-eastern United States and Canada, 24 to 28 July 2025and 1 more
August 2025 6114.6 µg/m³31 of 31395thof 2,901South-eastern Canada and United States, August 2025
North-eastern United States and Canada, 29 July to 9 August 2025
June 2025 5712.3 µg/m³29 of 30756thof 2,508Northern United States and Canada, May and June 2025
August 2026 478.5 µg/m³31 of 311,373rdof 2,896–
February 2026 427.5 µg/m³28 of 282,116thof 2,866North-eastern United States and Canada, 14 to 19 February 2026

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.

Manistee's worst days

DayUS AQIEpisode
16 Jul 2026 497324.0 µg/m³Northern United States and Canada, July 2026
17 Jul 2026 267192.0 µg/m³Northern United States and Canada, July 2026
15 Jul 2026 18299.5 µg/m³Northern United States and Canada, July 2026
19 Jul 2026 17792.3 µg/m³Northern United States and Canada, July 2026
31 Jul 2025 16980.7 µg/m³North-eastern United States and Canada, 29 July to 9 August 2025
18 Jul 2026 15357.9 µg/m³Northern United States and Canada, July 2026
4 Jun 2025 14955.0 µg/m³Northern United States and Canada, May and June 2025
4 Aug 2025 14954.8 µg/m³North-eastern United States and Canada, 29 July to 9 August 2025
30 Jul 2025 14653.7 µg/m³North-eastern United States and Canada, 29 July to 9 August 2025
3 Aug 2025 14051.3 µg/m³North-eastern United States and Canada, 29 July to 9 August 2025

Daily means, the highest since 3 Dec 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, Manistee, United States, 3 Dec 2024 – 11 Oct 2026. Monitor data from AirNow, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/us/manistee/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.

Manistee 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).