SmogRank / United States / New Mexico / Anthony
Anthony, month by month
Anthony has a measured daily mean on 977 days since 1 January 2023. Its worst month was March 2025, at 85 US AQI (27.4 µg/m³), 364th of 2,862 cities on that month's world ranking. Its cleanest was September 2025, at 27 US AQI (4.9 µg/m³).
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
15 months
| Month | Why |
|---|---|
| Oct 2026 | 6 of 11 days measured; a month needs 8. The others: 4 with no readings from the monitor, 1 with readings for part of the day (a day needs 18 hours). |
| Jun 2024 | 19 of 30 days measured; a month needs 21. The others: 10 with no readings from the monitor, 1 with readings for part of the day (a day needs 18 hours). |
| May 2024 | No day measured. The others: 31 with no readings from the monitor. |
| Apr 2024 | No day measured. The others: 30 with no readings from the monitor. |
| Mar 2024 | No day measured. The others: 30 with no readings from the monitor, 1 missing from OpenAQ's archive. |
| Feb 2024 | No day measured. The others: 28 with no readings from the monitor, 1 missing from OpenAQ's archive. |
| Jan 2024 | No day measured. The others: 31 with no readings from the monitor. |
| Dec 2023 | No day measured. The others: 31 with no readings from the monitor. |
| Nov 2023 | No day measured. The others: 30 with no readings from the monitor. |
| Oct 2023 | 17 of 31 days measured; a month needs 22. The others: 13 with no readings from the monitor, 1 with readings for part of the day (a day needs 18 hours). |
| Sep 2023 | 10 of 30 days measured; a month needs 21. The others: 18 with no readings from the monitor, 2 with readings for part of the day (a day needs 18 hours). |
| Aug 2023 | 3 of 31 days measured; a month needs 22. The others: 27 with no readings from the monitor, 1 with readings for part of the day (a day needs 18 hours). |
| Mar 2023 | 10 of 31 days measured; a month needs 22. The others: 1 with readings for part of the day (a day needs 18 hours), 20 missing from OpenAQ's archive. |
| Feb 2023 | 2 of 28 days measured; a month needs 20. The others: 1 with readings for part of the day (a day needs 18 hours), 25 missing from OpenAQ's archive. |
| Jan 2023 | 19 of 31 days measured; a month needs 22. The others: 3 with no readings from the monitor, 3 with readings for part of the day (a day needs 18 hours), 6 missing from OpenAQ's archive. |
A day counts once 18 hours of it are measured; a month needs 70% of its days.
Anthony's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| March 2025 | 8527.4 µg/m³ | 364thof 2,862 | South-western United States and Mexico, March 2025 |
| April 2025 | 7421.7 µg/m³ | 286thof 2,951 | South-western United States and Mexico, April 2025 |
| May 2025 | 6416.3 µg/m³ | 361stof 2,826 | South-western United States and Mexico, May 2025 |
| October 2024 | 5913.3 µg/m³ | 323rdof 2,020 | – |
| February 2025 | 5812.6 µg/m³ | 980thof 2,633 | – |
| April 2026 | 5511.2 µg/m³ | 781stof 2,941 | – |
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.
Anthony's worst days
| Day | US AQI | Episode |
|---|---|---|
| 18 Mar 2025 | 254179.0 µg/m³ | South-western United States and Mexico, March 2025 |
| 6 Mar 2025 | 238163.0 µg/m³ | – |
| 18 Apr 2025 | 189109.0 µg/m³ | – |
| 27 Apr 2025 | 17285.7 µg/m³ | – |
| 17 Apr 2025 | 17083.2 µg/m³ | – |
| 1 Apr 2025 | 16879.9 µg/m³ | South-western United States and Mexico, April 2025 |
| 13 Mar 2025 | 16169.2 µg/m³ | – |
| 31 May 2025 | 15967.0 µg/m³ | – |
| 14 Mar 2025 | 15257.2 µg/m³ | – |
| 2 May 2025 | 14051.4 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, Anthony, 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/anthony/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.
Anthony 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).