SmogRank / Mexico / Puebla / San Martin Texmelucan de Labastida

San Martin Texmelucan de Labastida, month by month

San Martin Texmelucan de Labastida has a measured daily mean on 329 days since 31 August 2023. Its worst month was February 2026, at 84 US AQI (26.8 µg/m³), 318th of 2,866 cities on that month's world ranking. Its cleanest was September 2025, at 53 US AQI (10.3 µg/m³).

Every month since 2023

2026too few days for a mean (a year needs 199)57 days measured
Jan74#351Feb84#318MarnoneAprnoneMay3 daysJunnoneJulnoneAugnoneSepnoneOctnone
2025too few days for a mean (a year needs 256)205 days measured
JannoneFebnoneMar1 dayApr8 daysMay76#221Jun54#1,044Jul61#433Aug56#846Sep53#637Oct7 daysNov70#435Dec74#468
2024too few days for a mean (a year needs 257)15 days measured
Jan15 daysFebnoneMarnoneAprnoneMaynoneJunnoneJulnoneAugnoneSepnoneOctnoneNovnoneDecnone
2023too few days for a mean (a year needs 256)52 days measured
JanFebMarAprMayJunJulAug1 daySep3 daysOct12 daysNov14 daysDec72#157
Each square is a month's mean PM2.5 in US AQI from San Martin Texmelucan de Labastida's measured days, with its place on that month's world ranking under it. A month has a mean once 70% of its days are measured, the rule the monthly rankings use; under that, the square gives the days measured. Each square opens that month's ranking with San Martin Texmelucan de Labastida marked; each year, the year's.
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

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

29 months
MonthWhy
Oct 2026No day measured. The others: 9 with no readings from the monitor, 2 with readings for part of the day (a day needs 18 hours).
Sep 2026No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Aug 2026No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Jul 2026No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Jun 2026No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
May 20263 of 31 days measured; a month needs 22. The others: 28 with under 18 hours of readings or readings that failed our checks.
Apr 2026No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Mar 2026No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Oct 20257 of 31 days measured; a month needs 22. The others: 24 with under 18 hours of readings or readings that failed our checks.
Apr 20258 of 30 days measured; a month needs 21. The others: 22 with under 18 hours of readings or readings that failed our checks.
Mar 20251 of 31 days measured; a month needs 22. The others: 30 with under 18 hours of readings or readings that failed our checks.
Feb 2025No day measured. The others: 28 with under 18 hours of readings or readings that failed our checks.
Jan 2025No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Dec 2024No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Nov 2024No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Oct 2024No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Sep 2024No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Aug 2024No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Jul 2024No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Jun 2024No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
May 2024No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Apr 2024No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Mar 2024No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Feb 2024No day measured. The others: 1 missing from OpenAQ's archive, 28 with under 18 hours of readings or readings that failed our checks.
Jan 202415 of 31 days measured; a month needs 22. The others: 16 with under 18 hours of readings or readings that failed our checks.
Nov 202314 of 30 days measured; a month needs 21. The others: 16 with under 18 hours of readings or readings that failed our checks.
Oct 202312 of 31 days measured; a month needs 22. The others: 19 with under 18 hours of readings or readings that failed our checks.
Sep 20233 of 30 days measured; a month needs 21. The others: 27 with under 18 hours of readings or readings that failed our checks.
Aug 20231 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.

San Martin Texmelucan de Labastida's worst months

MonthUS AQIDays measuredWorld rank
February 2026 8426.8 µg/m³25 of 28318thof 2,866
May 2025 7622.5 µg/m³30 of 31221stof 2,826
January 2026 7421.5 µg/m³29 of 31351stof 2,617
December 2025 7421.2 µg/m³28 of 31468thof 3,006
December 2023 7220.4 µg/m³22 of 31157thof 2,247
November 2025 7019.2 µg/m³21 of 30435thof 2,715

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.

San Martin Texmelucan de Labastida's worst days

DayUS AQI
29 Dec 2025 15967.5 µg/m³
24 Apr 2025 13348.4 µg/m³
19 Feb 2026 12344.5 µg/m³
25 Apr 2025 12043.1 µg/m³
14 Feb 2026 11842.6 µg/m³
30 Apr 2025 11742.2 µg/m³
6 Feb 2026 10938.9 µg/m³
29 Apr 2025 10938.7 µg/m³
23 Apr 2025 10938.6 µg/m³
23 Dec 2023 10737.9 µg/m³

Daily means, the highest since 31 Aug 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, San Martin Texmelucan de Labastida, Mexico, 31 Aug 2023 – 23 May 2026. Monitor data from Sinaica Mexico via OpenAQ; sources listed at smogrank.com/sources. smogrank.com/mx/san-martin-texmelucan-de-labastida/history (accessed 13 Oct 2026).

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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.

San Martin Texmelucan de Labastida now: the last 24 hours, its ranks today and the last 12 months day by day.

Updated 2026-10-13 02:07 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).