SmogRank / Germany / Saxony-Anhalt / Wernigerode
Wernigerode, month by month
Wernigerode has a measured daily mean on 760 days since 10 January 2024. Its worst month was January 2026, at 73 US AQI (20.8 µg/m³), 382nd of 2,617 cities on that month's world ranking. Its cleanest was August 2026, at 31 US AQI (5.6 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
9 months
| Month | Why |
|---|---|
| Jun 2026 | 16 of 30 days measured; a month needs 21. The others: 14 with under 18 hours of readings or readings that failed our checks. |
| Jun 2025 | 17 of 30 days measured; a month needs 21. The others: 13 with under 18 hours of readings or readings that failed our checks. |
| Mar 2025 | 19 of 31 days measured; a month needs 22. The others: 12 with under 18 hours of readings or readings that failed our checks. |
| Oct 2024 | 14 of 31 days measured; a month needs 22. The others: 17 with under 18 hours of readings or readings that failed our checks. |
| Sep 2024 | No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks. |
| Aug 2024 | 14 of 31 days measured; a month needs 22. The others: 17 with under 18 hours of readings or readings that failed our checks. |
| Mar 2024 | 15 of 31 days measured; a month needs 22. The others: 16 with under 18 hours of readings or readings that failed our checks. |
| Feb 2024 | 9 of 29 days measured; a month needs 21. The others: 20 with under 18 hours of readings or readings that failed our checks. |
| Jan 2024 | 10 of 31 days measured; a month needs 22. The others: 12 with under 18 hours of readings or readings that failed our checks. |
A day counts once 18 hours of it are measured; a month needs 70% of its days.
Wernigerode's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| January 2026 | 7320.8 µg/m³ | 382ndof 2,617 | Europe, January and February 2026 Europe, December 2025 to January 2026 |
| February 2025 | 7220.4 µg/m³ | 543rdof 2,633 | Europe, 1 to 14 February 2025 |
| February 2026 | 6617.3 µg/m³ | 670thof 2,866 | Europe, January and February 2026 |
| March 2026 | 6013.8 µg/m³ | 967thof 2,971 | Europe, 1 to 12 March 2026 |
| December 2025 | 529.5 µg/m³ | 1,458thof 3,006 | Europe, December 2025 to January 2026 |
| November 2024 | 519.1 µg/m³ | 1,051stof 2,624 | Europe, November 2024 |
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.
Wernigerode's worst days
| Day | US AQI | Episode |
|---|---|---|
| 24 Jan 2026 | 15865.0 µg/m³ | Europe, January and February 2026 |
| 13 Feb 2025 | 15256.8 µg/m³ | Europe, 1 to 14 February 2025 |
| 25 Jan 2026 | 15256.4 µg/m³ | Europe, January and February 2026 |
| 10 Feb 2025 | 14051.3 µg/m³ | Europe, 1 to 14 February 2025 |
| 4 Feb 2026 | 13248.2 µg/m³ | Europe, January and February 2026 |
| 11 Mar 2025 | 12846.6 µg/m³ | Germany, Poland and 25 more countries, March 2025 |
| 11 Feb 2025 | 12444.7 µg/m³ | Europe, 1 to 14 February 2025 |
| 23 Jan 2026 | 12043.4 µg/m³ | Europe, January and February 2026 |
| 30 Jan 2026 | 11742.1 µg/m³ | Europe, January and February 2026 |
| 9 Mar 2025 | 11440.9 µg/m³ | Germany, Poland and 25 more countries, March 2025 |
Daily means, the highest since 10 Jan 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, Wernigerode, Germany, 10 Jan 2024 – 10 Oct 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/de/wernigerode/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.
Wernigerode 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).