SmogRank / Australia / New South Wales / Singleton
Singleton, month by month
Singleton has a measured daily mean on 1,055 days since 2 January 2023. Its worst month was December 2025, at 53 US AQI (10.3 µg/m³), 1,268th of 3,006 cities on that month's world ranking. Its cleanest was March 2025, at 28 US AQI (5.0 µg/m³). 2025 averaged 42 US AQI (7.6 µg/m³), against 44 US AQI (8.0 µg/m³) in 2023.
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
14 months
| Month | Why |
|---|---|
| Jul 2025 | 17 of 31 days measured; a month needs 22. The others: 14 with readings for part of the day (a day needs 18 hours). |
| Jun 2025 | 17 of 30 days measured; a month needs 21. The others: 10 with no readings from the monitor, 3 with readings for part of the day (a day needs 18 hours). |
| Dec 2024 | 16 of 31 days measured; a month needs 22. The others: 12 with no readings from the monitor, 3 with readings for part of the day (a day needs 18 hours). |
| Nov 2024 | No day measured. The others: 30 with no readings from the monitor. |
| Oct 2024 | No day measured. The others: 31 with no readings from the monitor. |
| Sep 2024 | No day measured. The others: 30 with no readings from the monitor. |
| Aug 2024 | 12 of 31 days measured; a month needs 22. The others: 17 with no readings from the monitor, 2 with readings for part of the day (a day needs 18 hours). |
| May 2024 | 21 of 31 days measured; a month needs 22. The others: 10 with readings for part of the day (a day needs 18 hours). |
| Mar 2024 | 20 of 31 days measured; a month needs 22. The others: 11 with readings for part of the day (a day needs 18 hours). |
| Feb 2024 | 19 of 29 days measured; a month needs 21. The others: 10 with readings for part of the day (a day needs 18 hours). |
| Jan 2024 | 20 of 31 days measured; a month needs 22. The others: 11 with readings for part of the day (a day needs 18 hours). |
| Nov 2023 | 18 of 30 days measured; a month needs 21. The others: 12 with readings for part of the day (a day needs 18 hours). |
| Feb 2023 | 18 of 28 days measured; a month needs 20. The others: 2 with readings for part of the day (a day needs 18 hours), 8 missing from OpenAQ's archive. |
| Jan 2023 | 21 of 31 days measured; a month needs 22. The others: 7 with readings for part of the day (a day needs 18 hours), 2 missing from OpenAQ's archive. |
A day counts once 18 hours of it are measured; a month needs 70% of its days.
Singleton's worst months
| Month | US AQI | World rank |
|---|---|---|
| December 2025 | 5310.3 µg/m³ | 1,268thof 3,006 |
| January 2026 | 5310.2 µg/m³ | 1,074thof 2,617 |
| June 2026 | 5310.0 µg/m³ | 662ndof 2,497 |
| February 2026 | 529.7 µg/m³ | 1,482ndof 2,866 |
| September 2025 | 529.6 µg/m³ | 753rdof 3,104 |
| June 2024 | 519.3 µg/m³ | 847thof 2,563 |
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.
Singleton's worst days
| Day | US AQI |
|---|---|
| 31 Jan 2026 | 15155.8 µg/m³ |
| 1 Feb 2026 | 9230.9 µg/m³ |
| 1 Dec 2025 | 8326.4 µg/m³ |
| 19 Dec 2023 | 7421.7 µg/m³ |
| 29 Jun 2025 | 7421.3 µg/m³ |
| 21 Sept 2026 | 7320.7 µg/m³ |
| 5 Feb 2024 | 7220.6 µg/m³ |
| 19 Feb 2023 | 7119.9 µg/m³ |
| 9 Dec 2025 | 7119.9 µg/m³ |
| 4 Feb 2024 | 7019.5 µg/m³ |
Daily means, the highest since 2 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, Singleton, Australia, 2 Jan 2023 – 12 Oct 2026. Monitor data from NSW DCCEEW, read from the publisher; sources listed at smogrank.com/sources. smogrank.com/au/singleton/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.
Singleton now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-12 17:07 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).