SmogRank / Italy / Apulia / San Pietro Vernotico
San Pietro Vernotico, month by month
San Pietro Vernotico has a measured daily mean on 658 days since 4 January 2023. Its worst month was July 2024, at 86 US AQI (28.0 µg/m³), 65th of 2,566 cities on that month's world ranking. Its cleanest was April 2025, at 44 US AQI (8.0 µg/m³).
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
32 months
| Month | Why |
|---|---|
| Oct 2026 | 2 of 11 days measured; a month needs 8. The others: 2 with no readings from the monitor, 6 with readings for part of the day (a day needs 18 hours), 1 with under 18 hours of readings or readings that failed our checks. |
| Sep 2026 | 4 of 30 days measured; a month needs 21. The others: 1 with no readings from the monitor, 25 with readings for part of the day (a day needs 18 hours). |
| Aug 2026 | No day measured. The others: 31 with no readings from the monitor. |
| Jul 2026 | 3 of 31 days measured; a month needs 22. The others: 1 with no readings from the monitor, 27 with readings for part of the day (a day needs 18 hours). |
| Jun 2026 | 19 of 30 days measured; a month needs 21. The others: 11 with readings for part of the day (a day needs 18 hours). |
| Apr 2026 | 19 of 30 days measured; a month needs 21. The others: 10 with readings for part of the day (a day needs 18 hours), 1 with readings left out by our checks. |
| Mar 2026 | 2 of 31 days measured; a month needs 22. The others: 29 with readings for part of the day (a day needs 18 hours). |
| Feb 2026 | 8 of 28 days measured; a month needs 20. The others: 12 with no readings from the monitor, 8 with readings for part of the day (a day needs 18 hours). |
| Jan 2026 | No day measured. The others: 31 with no readings from the monitor. |
| Dec 2025 | No day measured. The others: 31 with no readings from the monitor. |
| Nov 2025 | No day measured. The others: 25 with no readings from the monitor, 4 with readings for part of the day (a day needs 18 hours), 1 with readings left out by our checks. |
| Oct 2025 | 11 of 31 days measured; a month needs 22. The others: 14 with readings for part of the day (a day needs 18 hours), 6 with readings left out by our checks. |
| Jun 2025 | 15 of 30 days measured; a month needs 21. The others: 9 with readings for part of the day (a day needs 18 hours), 6 with readings left out by our checks. |
| May 2025 | 19 of 31 days measured; a month needs 22. The others: 1 with no readings from the monitor, 8 with readings for part of the day (a day needs 18 hours), 3 with readings left out by our checks. |
| Mar 2025 | 18 of 31 days measured; a month needs 22. The others: 13 with readings for part of the day (a day needs 18 hours). |
| Feb 2025 | 17 of 28 days measured; a month needs 20. The others: 2 with no readings from the monitor, 9 with readings for part of the day (a day needs 18 hours). |
| Jan 2025 | 11 of 31 days measured; a month needs 22. The others: 15 with readings for part of the day (a day needs 18 hours), 5 with readings left out by our checks. |
| Dec 2024 | 19 of 31 days measured; a month needs 22. The others: 5 with readings for part of the day (a day needs 18 hours), 7 with readings left out by our checks. |
| Nov 2024 | 1 of 30 days measured; a month needs 21. The others: 29 with readings for part of the day (a day needs 18 hours). |
| Oct 2024 | 5 of 31 days measured; a month needs 22. The others: 24 with readings for part of the day (a day needs 18 hours), 2 with readings left out by our checks. |
| Sep 2024 | No day measured. The others: 4 with no readings from the monitor, 26 with readings for part of the day (a day needs 18 hours). |
| Aug 2024 | 14 of 31 days measured; a month needs 22. The others: 11 with no readings from the monitor, 6 with readings for part of the day (a day needs 18 hours). |
| Mar 2024 | 11 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), 4 with readings left out by our checks. |
| Nov 2023 | 9 of 30 days measured; a month needs 21. The others: 19 with no readings from the monitor, 2 with readings for part of the day (a day needs 18 hours). |
| Oct 2023 | No day measured. The others: 31 with no readings from the monitor. |
| Sep 2023 | No day measured. The others: 30 with no readings from the monitor. |
| Aug 2023 | 16 of 31 days measured; a month needs 22. The others: 6 with no readings from the monitor, 9 with readings for part of the day (a day needs 18 hours). |
| Jul 2023 | 11 of 31 days measured; a month needs 22. The others: 9 with no readings from the monitor, 5 with readings for part of the day (a day needs 18 hours), 5 with readings left out by our checks, 1 missing from OpenAQ's archive. |
| Apr 2023 | 20 of 30 days measured; a month needs 21. The others: 8 with readings for part of the day (a day needs 18 hours), 2 missing from OpenAQ's archive. |
| Mar 2023 | 8 of 31 days measured; a month needs 22. The others: 3 with readings for part of the day (a day needs 18 hours), 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 | 14 of 31 days measured; a month needs 22. The others: 7 with readings for part of the day (a day needs 18 hours), 7 missing from OpenAQ's archive. |
A day counts once 18 hours of it are measured; a month needs 70% of its days.
San Pietro Vernotico's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| July 2024 | 8628.0 µg/m³ | 65thof 2,566 | – |
| June 2024 | 7019.2 µg/m³ | 105thof 2,563 | Southern Europe, June 2024 |
| February 2024 | 6717.5 µg/m³ | 269thof 2,486 | South-eastern Europe, February 2024 |
| December 2023 | 6617.4 µg/m³ | 216thof 2,247 | South-eastern Europe, 28 December 2023 to 1 January 2024 Italy, Bosnia and Herzegovina and 2 more countries, December 2023 |
| July 2025 | 6415.9 µg/m³ | 341stof 2,889 | – |
| May 2023 | 6013.9 µg/m³ | 172ndof 1,600 | – |
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.
San Pietro Vernotico's worst days
| Day | US AQI |
|---|---|
| 21 Oct 2025 | 500+699.0 µg/m³ |
| 20 Oct 2025 | 500+510.0 µg/m³ |
| 19 Oct 2025 | 500+336.0 µg/m³ |
| 23 Oct 2025 | 271196.0 µg/m³ |
| 20 Jul 2024 | 249174.0 µg/m³ |
| 22 Jul 2024 | 246171.0 µg/m³ |
| 16 Dec 2024 | 243168.0 µg/m³ |
| 6 Dec 2024 | 208133.0 µg/m³ |
| 29 Jun 2024 | 207132.0 µg/m³ |
| 14 Jul 2025 | 206131.0 µg/m³ |
Daily means, the highest since 4 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, San Pietro Vernotico, Italy, 4 Jan 2023 – 8 Oct 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/it/san-pietro-vernotico/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.
San Pietro Vernotico 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).