SmogRank / United States / Mississippi / Jackson
Jackson, month by month
Jackson has a measured daily mean on 1,366 days since 1 January 2023. Its worst month was May 2023, at 59 US AQI (13.6 µg/m³), 181st of 1,600 cities on that month's world ranking. Its cleanest was May 2026, at 37 US AQI (6.6 µg/m³). 2025 averaged 51 US AQI (9.1 µg/m³), against 48 US AQI (8.6 µg/m³) in 2024.
Every month since 2023
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
Jackson's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| May 2023 | 5913.6 µg/m³ | 181stof 1,600 | Southern United States, May 2023 |
| August 2023 | 5712.4 µg/m³ | 304thof 1,980 | – |
| June 2023 | 5611.9 µg/m³ | 556thof 1,603 | – |
| July 2023 | 5611.7 µg/m³ | 437thof 1,432 | – |
| October 2024 | 5611.7 µg/m³ | 406thof 2,020 | – |
| March 2023 | 5611.6 µg/m³ | 171stof 911 | – |
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.
Jackson's worst days
| Day | US AQI | Episode |
|---|---|---|
| 28 Feb 2023 | 10336.3 µg/m³ | – |
| 1 Mar 2026 | 9834.1 µg/m³ | – |
| 1 Aug 2024 | 9331.6 µg/m³ | Southern and eastern United States and Mexico, July and August 2024 |
| 22 May 2023 | 8929.3 µg/m³ | Southern United States, May 2023 |
| 21 May 2023 | 8828.9 µg/m³ | Southern United States, May 2023 |
| 6 Mar 2023 | 8627.7 µg/m³ | – |
| 7 Mar 2023 | 8527.2 µg/m³ | – |
| 8 Mar 2023 | 8426.8 µg/m³ | – |
| 4 Oct 2023 | 8426.8 µg/m³ | South-eastern United States, October 2023 |
| 14 Aug 2026 | 8225.9 µg/m³ | – |
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, Jackson, 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/jackson/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.
Jackson now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-12 17:07 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).