SmogRank / Spain / Valencia / Utiel
Utiel, month by month
Utiel has a measured daily mean on 885 days since 1 January 2023. Its worst month was August 2025, at 59 US AQI (13.5 µg/m³), 493rd of 2,901 cities on that month's world ranking. Its cleanest was May 2024, at 15 US AQI (2.7 µg/m³). 2025 averaged 37 US AQI (6.7 µg/m³), against 29 US AQI (5.2 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
17 months
| Month | Why |
|---|---|
| Oct 2026 | 7 of 11 days measured; a month needs 8. The others: 1 with no readings from the monitor, 3 with readings for part of the day (a day needs 18 hours). |
| Aug 2026 | No day measured. The others: 31 with readings for part of the day (a day needs 18 hours). |
| Jul 2026 | No day measured. The others: 1 with no readings from the monitor, 30 with readings for part of the day (a day needs 18 hours). |
| Jun 2026 | 1 of 30 days measured; a month needs 21. The others: 29 with readings for part of the day (a day needs 18 hours). |
| May 2026 | 1 of 31 days measured; a month needs 22. The others: 18 with no readings from the monitor, 12 with readings for part of the day (a day needs 18 hours). |
| Apr 2026 | No day measured. The others: 30 with no readings from the monitor. |
| Mar 2026 | No day measured. The others: 31 with no readings from the monitor. |
| Feb 2026 | 6 of 28 days measured; a month needs 20. The others: 19 with no readings from the monitor, 3 with readings for part of the day (a day needs 18 hours). |
| Jun 2025 | 19 of 30 days measured; a month needs 21. The others: 11 with readings for part of the day (a day needs 18 hours). |
| Oct 2024 | 12 of 31 days measured; a month needs 22. The others: 2 with no readings from the monitor, 17 with readings for part of the day (a day needs 18 hours). |
| Sep 2024 | No day measured. The others: 30 with readings for part of the day (a day needs 18 hours). |
| Aug 2024 | 6 of 31 days measured; a month needs 22. The others: 1 with no readings from the monitor, 23 with readings for part of the day (a day needs 18 hours), 1 with readings left out by our checks. |
| Jul 2024 | 10 of 31 days measured; a month needs 22. The others: 2 with no readings from the monitor, 19 with readings for part of the day (a day needs 18 hours). |
| Mar 2024 | 13 of 31 days measured; a month needs 22. The others: 10 with no readings from the monitor, 6 with readings for part of the day (a day needs 18 hours), 2 with readings left out by our checks. |
| Mar 2023 | 11 of 31 days measured; a month needs 22. The others: 20 missing from OpenAQ's archive. |
| Feb 2023 | 2 of 28 days measured; a month needs 20. The others: 1 with readings for part of the day (a day needs 18 hours), 25 missing from OpenAQ's archive. |
| Jan 2023 | 13 of 31 days measured; a month needs 22. The others: 10 with readings for part of the day (a day needs 18 hours), 1 with readings left out by our checks, 7 missing from OpenAQ's archive. |
A day counts once 18 hours of it are measured; a month needs 70% of its days.
Utiel's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| August 2025 | 5913.5 µg/m³ | 493rdof 2,901 | Spain, Portugal and Andorra, August 2025 |
| February 2025 | 488.6 µg/m³ | 1,437thof 2,633 | – |
| September 2026 | 488.6 µg/m³ | 867thof 2,981 | – |
| July 2025 | 468.2 µg/m³ | 1,729thof 2,889 | – |
| July 2023 | 447.9 µg/m³ | 867thof 1,432 | – |
| September 2023 | 397.1 µg/m³ | 1,467thof 2,176 | – |
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.
Utiel's worst days
| Day | US AQI | Episode |
|---|---|---|
| 25 Aug 2024 | 12946.8 µg/m³ | – |
| 17 Aug 2025 | 8225.7 µg/m³ | Spain, Portugal and Andorra, August 2025 |
| 16 Sept 2026 | 8024.6 µg/m³ | – |
| 20 Feb 2025 | 8024.5 µg/m³ | – |
| 20 Aug 2025 | 8024.5 µg/m³ | Spain, Portugal and Andorra, August 2025 |
| 14 Jun 2025 | 8024.4 µg/m³ | – |
| 21 Feb 2025 | 7823.4 µg/m³ | – |
| 4 Sept 2023 | 7723.2 µg/m³ | – |
| 26 Aug 2025 | 7421.6 µg/m³ | – |
| 5 Sept 2023 | 7321.1 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, Utiel, Spain, 1 Jan 2023 – 9 Oct 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/es/utiel/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.
Utiel now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-12 18:07 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).