SmogRank / United States / Georgia / Kennesaw

Kennesaw, month by month

Kennesaw has a measured daily mean on 420 days since 27 October 2023. Its worst month was November 2023, at 59 US AQI (13.3 µg/m³), 208th of 2,243 cities on that month's world ranking. Its cleanest was September 2024, at 41 US AQI (7.4 µg/m³).

Every month since 2023

2026too few days for a mean (a year needs 199)0 days measured
JannoneFebnoneMarnoneAprnoneMaynoneJunnoneJulnoneAugnoneSepnoneOctnone
2025too few days for a mean (a year needs 256)1 day measured
Jan1 dayFebnoneMarnoneAprnoneMaynoneJunnoneJulnoneAugnoneSepnoneOctnoneNovnoneDecnone
202452 for the year360 days measured677th of 2,097 in the world
Jan51#972Feb55#538Mar53#371Apr56#763May46#1,202Jun52#677Jul42#1,494Aug54#478Sep41#1,033Oct52#561Nov46#1,296Dec47#1,242
2023too few days for a mean (a year needs 256)59 days measured
JanFebMarAprMayJunJulAugSepOct5 daysNov59#208Dec58#385
Each square is a month's mean PM2.5 in US AQI from Kennesaw'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 Kennesaw marked; each year, the year's.
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

23 months
MonthWhy
Oct 2026No day measured.
Sep 2026No day measured.
Aug 2026No day measured.
Jul 2026No day measured.
Jun 2026No day measured.
May 2026No day measured.
Apr 2026No day measured.
Mar 2026No day measured.
Feb 2026No day measured.
Jan 2026No day measured.
Dec 2025No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Nov 2025No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Oct 2025No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Sep 2025No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Aug 2025No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Jul 2025No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Jun 2025No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
May 2025No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Apr 2025No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Mar 2025No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Feb 2025No day measured. The others: 28 with under 18 hours of readings or readings that failed our checks.
Jan 20251 of 31 days measured; a month needs 22. The others: 30 with under 18 hours of readings or readings that failed our checks.
Oct 20235 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.

Kennesaw's worst months

MonthUS AQIDays measuredWorld rankEpisode
November 2023 5913.3 µg/m³30 of 30208thof 2,243–
December 2023 5812.6 µg/m³24 of 31385thof 2,247–
April 2024 5611.7 µg/m³29 of 30763rdof 2,520–
February 2024 5511.2 µg/m³29 of 29538thof 2,486South-eastern United States, February 2024
August 2024 5410.8 µg/m³31 of 31478thof 2,010–
March 2024 5310.3 µg/m³31 of 31371stof 1,698Georgia, Alabama and South Carolina, United States, March 2024
Eastern United States, March 2024

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.

Kennesaw's worst days

DayUS AQIEpisode
22 Dec 2023 10637.4 µg/m³–
22 Feb 2024 8427.0 µg/m³South-eastern United States, February 2024
21 Mar 2024 8426.8 µg/m³Georgia, Alabama and South Carolina, United States, March 2024
14 Mar 2024 8326.3 µg/m³Eastern United States, March 2024
7 Apr 2024 8225.8 µg/m³–
16 Feb 2024 8125.2 µg/m³–
13 Mar 2024 8024.4 µg/m³Eastern United States, March 2024
2 Aug 2024 7924.2 µg/m³–
21 Dec 2023 7823.6 µg/m³–
30 Nov 2023 7722.8 µg/m³–

Daily means, the highest since 27 Oct 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, Kennesaw, United States, 27 Oct 2023 – 11 Oct 2026. Monitor data from AirNow, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/us/kennesaw/history (accessed 13 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.

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

Updated 2026-10-13 00:07 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).