SmogRank / Mexico / Jalisco / Santa Anita
Santa Anita, month by month
Santa Anita has a measured daily mean on 444 days since 20 February 2025. Its worst month was December 2025, at 82 US AQI (26.0 µg/m³), 352nd of 3,006 cities on that month's world ranking. Its cleanest was September 2025, at 55 US AQI (11.4 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
7 months
| Month | Why |
|---|---|
| Aug 2026 | 13 of 31 days measured; a month needs 22. The others: 18 with under 18 hours of readings or readings that failed our checks. |
| Jul 2026 | No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks. |
| Jun 2026 | 17 of 30 days measured; a month needs 21. The others: 13 with under 18 hours of readings or readings that failed our checks. |
| Aug 2025 | 19 of 31 days measured; a month needs 22. The others: 12 with under 18 hours of readings or readings that failed our checks. |
| Jul 2025 | 11 of 31 days measured; a month needs 22. The others: 20 with under 18 hours of readings or readings that failed our checks. |
| Mar 2025 | 21 of 31 days measured; a month needs 22. The others: 10 with under 18 hours of readings or readings that failed our checks. |
| Feb 2025 | 1 of 28 days measured; a month needs 20. The others: 8 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.
Santa Anita's worst months
| Month | US AQI | World rank |
|---|---|---|
| December 2025 | 8226.0 µg/m³ | 352ndof 3,006 |
| November 2025 | 7924.2 µg/m³ | 313thof 2,715 |
| January 2026 | 7421.3 µg/m³ | 363rdof 2,617 |
| February 2026 | 6918.9 µg/m³ | 600thof 2,866 |
| May 2026 | 6918.5 µg/m³ | 320thof 2,874 |
| April 2025 | 6818.2 µg/m³ | 425thof 2,951 |
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.
Santa Anita's worst days
| Day | US AQI |
|---|---|
| 25 Dec 2025 | 16270.6 µg/m³ |
| 5 Sept 2025 | 12746.0 µg/m³ |
| 14 Nov 2025 | 11039.2 µg/m³ |
| 12 Nov 2025 | 10336.3 µg/m³ |
| 16 Dec 2025 | 9935.0 µg/m³ |
| 20 Dec 2025 | 9934.9 µg/m³ |
| 26 Nov 2025 | 9934.8 µg/m³ |
| 13 Nov 2025 | 9733.8 µg/m³ |
| 15 Nov 2025 | 9532.6 µg/m³ |
| 11 Dec 2025 | 9432.3 µg/m³ |
Daily means, the highest since 20 Feb 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, Santa Anita, Mexico, 20 Feb 2025 – 11 Oct 2026. Monitor data from Sinaica Mexico via OpenAQ; sources listed at smogrank.com/sources. smogrank.com/mx/santa-anita/history (accessed 13 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.
Santa Anita now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-13 01:07 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).