SmogRank / Poland / Lower Silesia / Szczytna
Szczytna, month by month
Szczytna has a measured daily mean on 550 days since 11 January 2025. Its worst month was February 2025, at 104 US AQI (36.6 µg/m³), 134th of 2,633 cities on that month's world ranking. Its cleanest was September 2025, at 22 US AQI (3.9 µg/m³).
Every month since 2025
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
4 months
| Month | Why |
|---|---|
| Oct 2026 | 5 of 11 days measured; a month needs 8. The others: 4 with no readings from the monitor, 1 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. |
| May 2026 | No day measured. The others: 31 with readings for part of the day (a day needs 18 hours). |
| Apr 2026 | 12 of 30 days measured; a month needs 21. The others: 18 with readings for part of the day (a day needs 18 hours). |
| Jan 2025 | 21 of 31 days measured; a month needs 22. |
A day counts once 18 hours of it are measured; a month needs 70% of its days.
Szczytna's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| February 2025 | 10436.6 µg/m³ | 134thof 2,633 | Europe, 14 February to 1 March 2025 Europe, 1 to 14 February 2025 |
| March 2025 | 8426.9 µg/m³ | 376thof 2,862 | Europe, March 2025 Germany, Poland and 25 more countries, March 2025and 1 more |
| January 2026 | 8024.5 µg/m³ | 261stof 2,617 | Europe, January and February 2026 Eastern Europe, January 2026and 2 more |
| February 2026 | 6818.2 µg/m³ | 634thof 2,866 | Europe, January and February 2026 |
| March 2026 | 6516.5 µg/m³ | 732ndof 2,971 | – |
| December 2025 | 6114.5 µg/m³ | 761stof 3,006 | Europe, December 2025 to January 2026 Eastern Europe, 16 to 21 December 2025 |
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.
Szczytna's worst days
| Day | US AQI | Episode |
|---|---|---|
| 11 Feb 2025 | 17083.0 µg/m³ | Europe, 1 to 14 February 2025 |
| 24 Jan 2026 | 15966.8 µg/m³ | Europe, January and February 2026 |
| 23 Feb 2025 | 15055.3 µg/m³ | Europe, 14 February to 1 March 2025 |
| 9 Jan 2026 | 14252.2 µg/m³ | Eastern Europe, January 2026 |
| 6 Jan 2026 | 13449.1 µg/m³ | Poland, January 2026 |
| 19 Jan 2025 | 13348.5 µg/m³ | Germany, France and 19 more countries, January 2025 |
| 23 Jan 2026 | 13348.5 µg/m³ | Europe, January and February 2026 |
| 10 Feb 2025 | 13147.5 µg/m³ | Europe, 1 to 14 February 2025 |
| 20 Feb 2025 | 12545.4 µg/m³ | Europe, 14 February to 1 March 2025 |
| 25 Feb 2025 | 12444.8 µg/m³ | Europe, 14 February to 1 March 2025 |
Daily means, the highest since 11 Jan 2025; 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, Szczytna, Poland, 11 Jan 2025 – 11 Oct 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/pl/szczytna/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.
Szczytna now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-12 19:07 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).