SmogRank / Slovakia / Prešov Region / Bardejov

Bardejov, month by month

Bardejov has a measured daily mean on 780 days since 11 January 2023. Its worst month was February 2025, at 77 US AQI (23.2 µg/m³), 347th of 2,633 cities on that month's world ranking. Its cleanest was June 2024, at 36 US AQI (6.5 µg/m³).

Every month since 2023

2026too few days for a mean (a year needs 200)193 days measured
JannoneFebnoneMar18 daysApr55#791May52#908Jun58#427Jul49#1,659Aug55#651Sep40#1,208Oct54#450
202559 for the year296 days measured516th of 2,681 in the world
Jan68#359Feb77#347Mar66#735Apr54#1,054May44#1,352Jun55#1,015Jul53#1,244Aug54#1,027Sep51#824Oct18 daysNov58#703Dec19 days
2024too few days for a mean (a year needs 257)235 days measured
Jan3 daysFeb68#240Mar14 daysApr20 daysMay52#877Jun36#1,877Jul46#1,233Aug15 daysSepnoneOct14 daysNov72#200Dec59#583
2023too few days for a mean (a year needs 256)56 days measured
Jan7 daysFeb76#79Mar20 daysApr3 daysMaynoneJunnoneJul1 dayAugnoneSepnoneOctnoneNovnoneDecnone
Each square is a month's mean PM2.5 in US AQI from Bardejov's measured days, with its place on that month's world ranking under it. A month has a mean once 70% of its days are measured, the rule the monthly rankings use; under that, the square gives the days measured. Each square opens that month's ranking with Bardejov marked; each year, the year's. A dashed square is the running month, so far.
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

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

22 months
MonthWhy
Mar 202618 of 31 days measured; a month needs 22. The others: 13 with under 18 hours of readings or readings that failed our checks.
Feb 2026No day measured. The others: 28 with under 18 hours of readings or readings that failed our checks.
Jan 2026No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Dec 202519 of 31 days measured; a month needs 22. The others: 12 with under 18 hours of readings or readings that failed our checks.
Oct 202518 of 31 days measured; a month needs 22. The others: 13 with under 18 hours of readings or readings that failed our checks.
Oct 202414 of 31 days measured; a month needs 22. The others: 17 with under 18 hours of readings or readings that failed our checks.
Sep 2024No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Aug 202415 of 31 days measured; a month needs 22. The others: 16 with under 18 hours of readings or readings that failed our checks.
Apr 202420 of 30 days measured; a month needs 21. The others: 10 with under 18 hours of readings or readings that failed our checks.
Mar 202414 of 31 days measured; a month needs 22. The others: 17 with under 18 hours of readings or readings that failed our checks.
Jan 20243 of 31 days measured; a month needs 22. The others: 28 with under 18 hours of readings or readings that failed our checks.
Dec 2023No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Nov 2023No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Oct 2023No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Sep 2023No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Aug 2023No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Jul 20231 of 31 days measured; a month needs 22. The others: 30 with under 18 hours of readings or readings that failed our checks.
Jun 2023No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
May 2023No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Apr 20233 of 30 days measured; a month needs 21. The others: 27 with under 18 hours of readings or readings that failed our checks.
Mar 202320 of 31 days measured; a month needs 22. The others: 11 with under 18 hours of readings or readings that failed our checks.
Jan 20237 of 31 days measured; a month needs 22. The others: 14 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.

Bardejov's worst months

MonthUS AQIDays measuredWorld rankEpisode
February 2025 7723.2 µg/m³24 of 28347thof 2,633Europe, 14 February to 1 March 2025
February 2023 7622.5 µg/m³25 of 2879thof 1,129Europe, 28 February to 4 March 2023
Europe, 6 to 25 February 2023
November 2024 7220.5 µg/m³27 of 30200thof 2,624Eastern Europe, 25 to 29 November 2024
Europe, November 2024and 1 more
February 2024 6818.3 µg/m³29 of 29240thof 2,486Europe, 27 January to 2 February 2024
January 2025 6818.1 µg/m³27 of 31359thof 2,474Germany, France and 19 more countries, January 2025
Europe, 24 December 2024 to 3 January 2025
March 2025 6617.4 µg/m³26 of 31735thof 2,862Germany, Poland and 25 more countries, March 2025
Europe, 14 February to 1 March 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.

Bardejov's worst days

DayUS AQIEpisode
11 Feb 2023 16068.7 µg/m³Europe, 6 to 25 February 2023
10 Feb 2023 15055.3 µg/m³Europe, 6 to 25 February 2023
17 Feb 2023 14453.0 µg/m³Europe, 6 to 25 February 2023
16 Feb 2023 13348.4 µg/m³Europe, 6 to 25 February 2023
1 Feb 2024 12846.4 µg/m³Europe, 27 January to 2 February 2024
17 Jan 2025 12043.4 µg/m³Germany, France and 19 more countries, January 2025
18 Dec 2025 11742.2 µg/m³Eastern Europe, 16 to 21 December 2025
1 Apr 2024 11541.1 µg/m³Europe, March and April 2024
17 Feb 2024 11240.0 µg/m³–
24 Feb 2025 11039.1 µg/m³Europe, 14 February to 1 March 2025

Daily means, the highest since 11 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, Bardejov, Slovakia, 11 Jan 2023 – 12 Oct 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/sk/bardejov/history (accessed 12 Oct 2026).

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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.

Bardejov now: the last 24 hours, its ranks today and the last 12 months day by day.

Updated 2026-10-12 22:07 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).