SmogRank / United States / Florida / Homestead
Homestead, month by month
Homestead has a measured daily mean on 1,070 days since 1 January 2023. Its worst month was July 2023, at 59 US AQI (13.5 µg/m³), 239th of 1,432 cities on that month's world ranking. Its cleanest was September 2025, at 26 US AQI (4.7 µg/m³). 2025 averaged 40 US AQI (7.2 µg/m³), against 39 US AQI (7.1 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
16 months
| Month | Why |
|---|---|
| Oct 2026 | 6 of 11 days measured; a month needs 8. The others: 2 with no readings from the monitor, 3 with readings for part of the day (a day needs 18 hours). |
| Aug 2026 | 17 of 31 days measured; a month needs 22. The others: 14 with under 18 hours of readings or readings that failed our checks. |
| Jul 2026 | 20 of 31 days measured; a month needs 22. The others: 11 with under 18 hours of readings or readings that failed our checks. |
| Jun 2026 | 20 of 30 days measured; a month needs 21. The others: 10 with under 18 hours of readings or readings that failed our checks. |
| May 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 2026 | 17 of 31 days measured; a month needs 22. The others: 14 with under 18 hours of readings or readings that failed our checks. |
| Feb 2026 | 17 of 28 days measured; a month needs 20. The others: 11 with under 18 hours of readings or readings that failed our checks. |
| Jan 2026 | 18 of 31 days measured; a month needs 22. The others: 13 with under 18 hours of readings or readings that failed our checks. |
| Dec 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. |
| Nov 2025 | 10 of 30 days measured; a month needs 21. The others: 20 with under 18 hours of readings or readings that failed our checks. |
| Oct 2025 | 18 of 31 days measured; a month needs 22. The others: 13 with under 18 hours of readings or readings that failed our checks. |
| Apr 2025 | 18 of 30 days measured; a month needs 21. The others: 12 with under 18 hours of readings or readings that failed our checks. |
| Nov 2023 | 18 of 30 days measured; a month needs 21. The others: 12 with under 18 hours of readings or readings that failed our checks. |
| Oct 2023 | 2 of 31 days measured; a month needs 22. The others: 29 with under 18 hours of readings or readings that failed our checks. |
| Mar 2023 | 10 of 31 days measured; a month needs 22. The others: 20 missing from OpenAQ's archive, 1 with under 18 hours of readings or readings that failed our checks. |
| Feb 2023 | 3 of 28 days measured; a month needs 20. The others: 25 missing from OpenAQ's archive. |
A day counts once 18 hours of it are measured; a month needs 70% of its days.
Homestead's worst months
| Month | US AQI | World rank |
|---|---|---|
| July 2023 | 5913.5 µg/m³ | 239thof 1,432 |
| July 2025 | 529.9 µg/m³ | 1,283rdof 2,889 |
| August 2023 | 529.4 µg/m³ | 719thof 1,980 |
| May 2024 | 519.3 µg/m³ | 906thof 2,684 |
| July 2024 | 498.9 µg/m³ | 1,046thof 2,566 |
| March 2025 | 498.9 µg/m³ | 1,796thof 2,862 |
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.
Homestead's worst days
| Day | US AQI | Episode |
|---|---|---|
| 31 Dec 2023 | 15764.1 µg/m³ | Florida and Georgia, United States, December 2023 to January 2024 |
| 1 Jan 2024 | 11139.4 µg/m³ | Florida and Georgia, United States, December 2023 to January 2024 |
| 5 Jul 2023 | 10637.6 µg/m³ | – |
| 17 Aug 2026 | 7722.9 µg/m³ | – |
| 9 Jul 2026 | 7622.4 µg/m³ | – |
| 24 Jul 2023 | 7220.4 µg/m³ | – |
| 25 Jul 2023 | 7220.2 µg/m³ | – |
| 10 Jul 2023 | 7119.6 µg/m³ | – |
| 16 May 2024 | 7019.1 µg/m³ | – |
| 20 Jul 2023 | 6919.0 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, Homestead, United States, 1 Jan 2023 – 9 Oct 2026. Monitor data from AirNow, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/us/homestead/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.
Homestead now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-12 22:07 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).