SmogRank / United States / New Jersey / Atlantic City
Atlantic City, month by month
Atlantic City has a measured daily mean on 1,122 days since 14 July 2023. Its worst month was July 2026, at 60 US AQI (13.7 µg/m³), 632nd of 2,784 cities on that month's world ranking. Its cleanest was November 2024, at 22 US AQI (4.0 µg/m³). 2025 averaged 34 US AQI (6.2 µg/m³), against 32 US AQI (5.8 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
Months without a mean, and why
2 months
| Month | Why |
|---|---|
| Aug 2023 | 20 of 31 days measured; a month needs 22. The others: 11 with under 18 hours of readings or readings that failed our checks. |
| Jul 2023 | 1 of 31 days measured; a month needs 22. The others: 17 with under 18 hours of readings or readings that failed our checks. |
A day counts once 18 hours of it are measured; a month needs 70% of its days.
Atlantic City's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| July 2026 | 6013.7 µg/m³ | 632ndof 2,784 | Northern United States and Canada, July 2026 |
| June 2025 | 529.8 µg/m³ | 1,357thof 2,508 | – |
| July 2025 | 529.5 µg/m³ | 1,397thof 2,889 | North-eastern United States and Canada, 24 to 28 July 2025 |
| August 2024 | 509.0 µg/m³ | 874thof 2,010 | – |
| July 2024 | 498.9 µg/m³ | 1,046thof 2,566 | – |
| September 2023 | 437.7 µg/m³ | 1,233rdof 2,176 | – |
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.
Atlantic City's worst days
| Day | US AQI | Episode |
|---|---|---|
| 17 Jul 2026 | 17184.7 µg/m³ | Northern United States and Canada, July 2026 |
| 12 Oct 2025 | 13047.3 µg/m³ | – |
| 16 Jul 2026 | 12946.9 µg/m³ | Northern United States and Canada, July 2026 |
| 18 Jul 2026 | 12545.3 µg/m³ | Northern United States and Canada, July 2026 |
| 26 Jul 2025 | 9633.0 µg/m³ | North-eastern United States and Canada, 24 to 28 July 2025 |
| 27 Jul 2025 | 7823.4 µg/m³ | North-eastern United States and Canada, 24 to 28 July 2025 |
| 23 Apr 2025 | 7522.1 µg/m³ | – |
| 3 Jul 2026 | 7421.6 µg/m³ | – |
| 16 Jul 2024 | 7220.2 µg/m³ | – |
| 13 Jun 2025 | 7019.5 µg/m³ | – |
Daily means, the highest since 14 Jul 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, Atlantic City, United States, 14 Jul 2023 – 11 Oct 2026. Monitor data from AirNow, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/us/atlantic-city/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.
Atlantic City now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-12 21:07 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).