SmogRank / Mexico / Hidalgo / La Providencia Siglo XXI
La Providencia Siglo XXI, month by month
La Providencia Siglo XXI has a measured daily mean on 537 days since 11 March 2025. Its worst month was January 2026, at 72 US AQI (20.4 µg/m³), 403rd of 2,617 cities on that month's world ranking. Its cleanest was September 2025, at 39 US AQI (7.0 µg/m³).
Every month since 2025
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
3 months
| Month | Why |
|---|---|
| Nov 2025 | 11 of 30 days measured; a month needs 21. The others: 19 with under 18 hours of readings or readings that failed our checks. |
| Aug 2025 | 16 of 31 days measured; a month needs 22. The others: 15 with under 18 hours of readings or readings that failed our checks. |
| Mar 2025 | 21 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.
La Providencia Siglo XXI's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| January 2026 | 7220.4 µg/m³ | 403rdof 2,617 | Mexico, January 2026 Southern Mexico, January 2026 |
| July 2025 | 7220.2 µg/m³ | 200thof 2,889 | – |
| April 2025 | 6818.1 µg/m³ | 431stof 2,951 | – |
| February 2026 | 6818.0 µg/m³ | 644thof 2,866 | – |
| May 2026 | 6717.6 µg/m³ | 342ndof 2,874 | – |
| December 2025 | 6617.4 µg/m³ | 623rdof 3,006 | – |
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.
La Providencia Siglo XXI's worst days
| Day | US AQI | Episode |
|---|---|---|
| 1 Jan 2026 | 15155.5 µg/m³ | Southern Mexico, January 2026 |
| 9 Jul 2025 | 13750.0 µg/m³ | – |
| 10 Jul 2025 | 12444.7 µg/m³ | – |
| 5 Jul 2025 | 12043.1 µg/m³ | – |
| 4 Jul 2025 | 11641.7 µg/m³ | – |
| 8 Jan 2026 | 11440.9 µg/m³ | Mexico, January 2026 |
| 6 Jul 2025 | 11340.4 µg/m³ | – |
| 9 Jan 2026 | 11139.6 µg/m³ | Mexico, January 2026 |
| 7 Jul 2025 | 9733.8 µg/m³ | – |
| 18 Dec 2025 | 9532.6 µg/m³ | – |
Daily means, the highest since 11 Mar 2025; 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, La Providencia Siglo XXI, Mexico, 11 Mar 2025 – 11 Oct 2026. Monitor data from Sinaica Mexico via OpenAQ; sources listed at smogrank.com/sources. smogrank.com/mx/la-providencia-siglo-xxi/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.
La Providencia Siglo XXI now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-12 19:07 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).