SmogRank / United States / Texas / Corsicana
Corsicana, month by month
Corsicana has a measured daily mean on 1,276 days since 1 January 2023. Its worst month was May 2024, at 61 US AQI (14.2 µg/m³), 320th of 2,684 cities on that month's world ranking. Its cleanest was November 2025, at 29 US AQI (5.3 µg/m³). 2025 averaged 44 US AQI (8.0 µg/m³), against 48 US AQI (8.7 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
3 months
| Month | Why |
|---|---|
| Aug 2026 | 19 of 31 days measured; a month needs 22. The others: 12 with under 18 hours of readings or readings that failed our checks. |
| Mar 2023 | 15 of 31 days measured; a month needs 22. The others: 15 missing from OpenAQ's archive, 1 with under 18 hours of readings or readings that failed our checks. |
| Feb 2023 | 6 of 28 days measured; a month needs 20. The others: 21 missing from OpenAQ's archive, 1 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.
Corsicana's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| May 2024 | 6114.2 µg/m³ | 320thof 2,684 | Southern United States and Mexico, 19 to 28 May 2024 Southern United States and Mexico, 7 to 10 May 2024 |
| May 2023 | 5812.8 µg/m³ | 220thof 1,600 | – |
| June 2023 | 5812.7 µg/m³ | 504thof 1,603 | Southern United States and Mexico, June 2023 |
| July 2023 | 5812.7 µg/m³ | 316thof 1,432 | – |
| August 2024 | 5511.5 µg/m³ | 391stof 2,010 | Southern and eastern United States and Mexico, July and August 2024 |
| July 2026 | 5511.5 µg/m³ | 996thof 2,784 | – |
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.
Corsicana's worst days
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, Corsicana, 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/corsicana/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.
Corsicana now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-13 03:07 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).