SmogRank / United States / Michigan / Beecher

Beecher, month by month

Beecher has a measured daily mean on 231 days since 23 February 2026. Its worst month was July 2026, at 85 US AQI (27.6 µg/m³), 172nd of 2,784 cities on that month's world ranking. Its cleanest was May 2026, at 36 US AQI (6.4 µg/m³).

Every month since 2026

202653 so far231 days measured940th of 2,791 in the world

JanFeb6 daysMar52#1,777 Apr39#1,893 May36#1,810 Jun43#1,146 Jul85#172 Aug41#1,948 Sep37#1,442 Oct43#1,101

Each square is a month's mean PM2.5 in US AQI from Beecher'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 Beecher 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

Months without a mean, and why

1 month

Month	Why
Feb 2026	6 of 28 days measured; a month needs 20.

A day counts once 18 hours of it are measured; a month needs 70% of its days.

Beecher's worst months

Month	US AQI	Days measured	World rank	Episode
July 2026	8527.6 µg/m³	31 of 31	172ndof 2,784	Northern United States and Canada, July 2026
March 2026	529.5 µg/m³	31 of 31	1,777thof 2,971	–
June 2026	437.8 µg/m³	30 of 30	1,146thof 2,497	–
August 2026	417.3 µg/m³	31 of 31	1,948thof 2,896	–
April 2026	397.0 µg/m³	30 of 30	1,893rdof 2,941	–
September 2026	376.6 µg/m³	30 of 30	1,442ndof 2,981	–

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.

Beecher's worst days

Day	US AQI	Episode
16 Jul 2026	352251.0 µg/m³	Northern United States and Canada, July 2026
17 Jul 2026	236161.0 µg/m³	Northern United States and Canada, July 2026
15 Jul 2026	17184.7 µg/m³	Northern United States and Canada, July 2026
18 Jul 2026	10035.3 µg/m³	Northern United States and Canada, July 2026
19 Jul 2026	9934.6 µg/m³	Northern United States and Canada, July 2026
20 Jul 2026	8427.0 µg/m³	Northern United States and Canada, July 2026
1 Jul 2026	7924.3 µg/m³	–
5 Mar 2026	6717.5 µg/m³	–
21 Jul 2026	6617.1 µg/m³	Northern United States and Canada, July 2026
4 Mar 2026	6315.7 µg/m³	–

Daily means, the highest since 23 Feb 2026; 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, Beecher, United States, 23 Feb 2026 – 11 Oct 2026. Monitor data from AirNow, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/us/beecher/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.

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

Updated 2026-10-12 18:07 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).