SmogRank / Germany / Hesse / Gersfeld
Gersfeld, month by month
Gersfeld has a measured daily mean on 887 days since 20 June 2023. Its worst month was March 2025, at 55 US AQI (11.3 µg/m³), 1,348th of 2,862 cities on that month's world ranking. Its cleanest was November 2023, at 7 US AQI (1.3 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
15 months
| Month | Why |
|---|---|
| Sep 2026 | 17 of 30 days measured; a month needs 21. The others: 3 with no readings from the monitor, 10 with readings for part of the day (a day needs 18 hours). |
| Jun 2026 | 16 of 30 days measured; a month needs 21. The others: 7 with no readings from the monitor, 7 with readings for part of the day (a day needs 18 hours). |
| Oct 2025 | 21 of 31 days measured; a month needs 22. The others: 2 with no readings from the monitor, 7 with readings for part of the day (a day needs 18 hours), 1 with readings left out by our checks. |
| Jun 2025 | 20 of 30 days measured; a month needs 21. The others: 10 with readings for part of the day (a day needs 18 hours). |
| Dec 2024 | 18 of 31 days measured; a month needs 22. The others: 5 with readings for part of the day (a day needs 18 hours), 8 with readings left out by our checks. |
| Oct 2024 | 15 of 31 days measured; a month needs 22. The others: 16 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 | 15 of 31 days measured; a month needs 22. The others: 1 with no readings from the monitor, 15 with readings for part of the day (a day needs 18 hours). |
| Mar 2024 | 15 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). |
| Feb 2024 | 18 of 29 days measured; a month needs 21. The others: 3 with no readings from the monitor, 4 with readings for part of the day (a day needs 18 hours), 3 with readings left out by our checks, 1 missing from OpenAQ's archive. |
| Oct 2023 | 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). |
| Sep 2023 | 1 of 30 days measured; a month needs 21. The others: 22 with no readings from the monitor, 7 with readings for part of the day (a day needs 18 hours). |
| Aug 2023 | No day measured. The others: 31 with no readings from the monitor. |
| Jul 2023 | 13 of 31 days measured; a month needs 22. The others: 17 with no readings from the monitor, 1 missing from OpenAQ's archive. |
| Jun 2023 | 11 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.
Gersfeld's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| March 2025 | 5511.3 µg/m³ | 1,348thof 2,862 | Germany, Poland and 25 more countries, March 2025 |
| February 2025 | 519.1 µg/m³ | 1,327thof 2,633 | Europe, 1 to 14 February 2025 |
| March 2026 | 478.4 µg/m³ | 2,035thof 2,971 | Europe, 18 to 25 March 2026 |
| August 2025 | 315.6 µg/m³ | 2,595thof 2,901 | – |
| June 2024 | 305.4 µg/m³ | 2,171stof 2,563 | – |
| April 2025 | 305.4 µg/m³ | 2,443rdof 2,951 | – |
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.
Gersfeld's worst days
| Day | US AQI | Episode |
|---|---|---|
| 10 Feb 2025 | 9532.8 µg/m³ | Europe, 1 to 14 February 2025 |
| 10 Mar 2025 | 9130.7 µg/m³ | Germany, Poland and 25 more countries, March 2025 |
| 30 Mar 2024 | 8628.0 µg/m³ | Europe, March and April 2024 |
| 20 Mar 2026 | 8125.0 µg/m³ | Europe, 18 to 25 March 2026 |
| 9 Mar 2025 | 7924.2 µg/m³ | Germany, Poland and 25 more countries, March 2025 |
| 11 Mar 2025 | 7723.1 µg/m³ | Germany, Poland and 25 more countries, March 2025 |
| 19 Mar 2026 | 7421.5 µg/m³ | Europe, 18 to 25 March 2026 |
| 10 Mar 2026 | 7421.4 µg/m³ | – |
| 31 Mar 2024 | 6918.7 µg/m³ | Europe, March and April 2024 |
| 9 Mar 2026 | 6918.7 µg/m³ | – |
Daily means, the highest since 20 Jun 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, Gersfeld, Germany, 20 Jun 2023 – 11 Oct 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/de/gersfeld/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.
Gersfeld 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).