SmogRank / United States / California / Banning
Banning, month by month
Banning has a measured daily mean on 1,349 days since 3 January 2023. Its worst month was July 2023, at 60 US AQI (13.7 µg/m³), 222nd of 1,432 cities on that month's world ranking. Its cleanest was February 2023, at 16 US AQI (2.8 µg/m³). 2025 averaged 38 US AQI (6.9 µg/m³), against 44 US AQI (7.9 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
Banning's worst months
| Month | US AQI | World rank |
|---|---|---|
| July 2023 | 6013.7 µg/m³ | 222ndof 1,432 |
| June 2023 | 5712.1 µg/m³ | 546thof 1,603 |
| July 2024 | 5511.5 µg/m³ | 489thof 2,566 |
| September 2024 | 5511.3 µg/m³ | 322ndof 2,010 |
| June 2025 | 5511.3 µg/m³ | 938thof 2,508 |
| June 2024 | 5511.1 µg/m³ | 454thof 2,563 |
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.
Banning's worst days
| Day | US AQI | Episode |
|---|---|---|
| 31 Jul 2023 | 15257.5 µg/m³ | – |
| 15 Jul 2023 | 11942.7 µg/m³ | – |
| 16 Jun 2026 | 9633.3 µg/m³ | – |
| 9 Sept 2024 | 8728.2 µg/m³ | – |
| 4 Aug 2025 | 8125.4 µg/m³ | California and Nevada, United States, August 2025 |
| 30 Sept 2024 | 7823.7 µg/m³ | – |
| 17 Jan 2024 | 7823.5 µg/m³ | – |
| 16 Sept 2023 | 7622.7 µg/m³ | – |
| 9 Jul 2024 | 7521.8 µg/m³ | – |
| 14 Jun 2023 | 7220.2 µg/m³ | – |
Daily means, the highest since 3 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, Banning, United States, 3 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/banning/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.
Banning 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).