SmogRank / Australia / Victoria / Stawell
Stawell, month by month
Stawell has a measured daily mean on 455 days since 13 June 2024. Its worst month was July 2026, at 50 US AQI (9.0 µg/m³), 1,604th of 2,784 cities on that month's world ranking. Its cleanest was October 2024, at 12 US AQI (2.2 µg/m³).
Every month since 2024
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
15 months
| Month | Why |
|---|---|
| Oct 2026 | 4 of 12 days measured; a month needs 9. The others: 8 with no readings from the monitor. |
| Sep 2026 | No day measured. The others: 30 with no readings from the monitor. |
| Aug 2026 | No day measured. The others: 31 with no readings from the monitor. |
| Nov 2025 | 12 of 30 days measured; a month needs 21. The others: 18 with no readings from the monitor. |
| Oct 2025 | No day measured. The others: 31 with no readings from the monitor. |
| Sep 2025 | No day measured. The others: 30 with no readings from the monitor. |
| Aug 2025 | No day measured. The others: 31 with no readings from the monitor. |
| Jul 2025 | No day measured. The others: 31 with no readings from the monitor. |
| Jun 2025 | No day measured. The others: 30 with no readings from the monitor. |
| May 2025 | No day measured. The others: 31 with no readings from the monitor. |
| Apr 2025 | No day measured. The others: 30 with no readings from the monitor. |
| Mar 2025 | No day measured. The others: 31 with no readings from the monitor. |
| Feb 2025 | No day measured. The others: 28 with no readings from the monitor. |
| Jan 2025 | 8 of 31 days measured; a month needs 22. The others: 22 with no readings from the monitor, 1 with readings for part of the day (a day needs 18 hours). |
| Jun 2024 | 18 of 30 days measured; a month needs 21. |
A day counts once 18 hours of it are measured; a month needs 70% of its days.
Stawell's worst months
| Month | US AQI | World rank |
|---|---|---|
| July 2026 | 509.0 µg/m³ | 1,604thof 2,784 |
| June 2026 | 448.0 µg/m³ | 1,073rdof 2,497 |
| April 2026 | 427.5 µg/m³ | 1,744thof 2,941 |
| January 2026 | 417.3 µg/m³ | 1,712thof 2,617 |
| May 2026 | 366.5 µg/m³ | 1,774thof 2,874 |
| July 2024 | 285.1 µg/m³ | 2,235thof 2,566 |
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.
Stawell's worst days
| Day | US AQI |
|---|---|
| 12 Jan 2026 | 10135.7 µg/m³ |
| 19 Apr 2026 | 9331.5 µg/m³ |
| 11 Jan 2026 | 9130.4 µg/m³ |
| 9 Jul 2026 | 8627.9 µg/m³ |
| 22 Dec 2024 | 8225.9 µg/m³ |
| 15 Jul 2026 | 7924.2 µg/m³ |
| 22 May 2026 | 7622.6 µg/m³ |
| 27 Jun 2026 | 7622.6 µg/m³ |
| 8 Jul 2026 | 7521.9 µg/m³ |
| 13 Jan 2026 | 7421.4 µg/m³ |
Daily means, the highest since 13 Jun 2024; 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, Stawell, Australia, 13 Jun 2024 – 12 Oct 2026. Monitor data from EPA Victoria, read from the publisher; sources listed at smogrank.com/sources. smogrank.com/au/stawell/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.
Stawell now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-12 20:07 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).