SmogRank / Sweden / Östergötland / Norrköping

Norrköping, month by month

Norrköping has a measured daily mean on 624 days since 11 January 2023. Its worst month was March 2026, at 55 US AQI (11.1 µg/m³), 1,401st of 2,971 cities on that month's world ranking. Its cleanest was May 2025, at 22 US AQI (3.9 µg/m³).

Every month since 2023

2026too few days for a mean (a year needs 199)80 days measured
Jan15 daysFeb38#2,253Mar55#1,401Apr1 dayMay3 daysJun7 daysJul2 daysAugnoneSepnoneOctnone
202534 for the year265 days measured2,313th of 2,681 in the world
Jan25#2,312Feb53#1,160Mar47#1,867Apr33#2,285May22#2,629Jun14 daysJul38#2,041Aug23#2,792Sep36#1,933Oct31#1,781Nov32#2,247Dec8 days
2024too few days for a mean (a year needs 257)223 days measured
Jan3 daysFeb40#1,400Mar15 daysApr31#1,826May45#1,279Jun33#2,022Jul28#2,263Aug13 daysSepnoneOct10 daysNov22#2,458Dec24#2,407
2023too few days for a mean (a year needs 256)56 days measured
Jan7 daysFeb26#1,073Mar20 daysApr3 daysMaynoneJunnoneJul1 dayAugnoneSepnoneOctnoneNovnoneDecnone
Each square is a month's mean PM2.5 in US AQI from Norrköping'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 Norrköping marked; each year, the year's.
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

26 months
MonthWhy
Oct 2026No day measured. The others: 2 with no readings from the monitors, 9 with readings for part of the day (a day needs 18 hours).
Sep 2026No day measured. The others: 30 with readings for part of the day (a day needs 18 hours).
Aug 2026No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Jul 20262 of 31 days measured; a month needs 22. The others: 29 with under 18 hours of readings or readings that failed our checks.
Jun 20267 of 30 days measured; a month needs 21. The others: 23 with under 18 hours of readings or readings that failed our checks.
May 20263 of 31 days measured; a month needs 22. The others: 28 with under 18 hours of readings or readings that failed our checks.
Apr 20261 of 30 days measured; a month needs 21. The others: 29 with under 18 hours of readings or readings that failed our checks.
Jan 202615 of 31 days measured; a month needs 22. The others: 16 with under 18 hours of readings or readings that failed our checks.
Dec 20258 of 31 days measured; a month needs 22. The others: 23 with under 18 hours of readings or readings that failed our checks.
Jun 202514 of 30 days measured; a month needs 21. The others: 16 with under 18 hours of readings or readings that failed our checks.
Oct 202410 of 31 days measured; a month needs 22. The others: 21 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 202413 of 31 days measured; a month needs 22. The others: 18 with under 18 hours of readings or readings that failed our checks.
Mar 202415 of 31 days measured; a month needs 22. The others: 16 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.

Norrköping's worst months

MonthUS AQIDays measuredWorld rankEpisode
March 2026 5511.1 µg/m³27 of 311,401stof 2,971Europe, 1 to 12 March 2026
February 2025 5310.3 µg/m³22 of 281,160thof 2,633–
March 2025 478.4 µg/m³22 of 311,867thof 2,862–
May 2024 458.1 µg/m³27 of 311,279thof 2,684–
February 2024 407.2 µg/m³28 of 291,400thof 2,486Europe, February and March 2024
February 2026 386.9 µg/m³25 of 282,253rdof 2,866Europe, January and February 2026

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.

Norrköping's worst days

DayUS AQIEpisode
10 Mar 2026 10637.6 µg/m³Europe, 1 to 12 March 2026
20 Jan 2026 8828.7 µg/m³Europe, January and February 2026
9 Mar 2026 8326.4 µg/m³Europe, 1 to 12 March 2026
2 Mar 2024 8326.3 µg/m³Europe, February and March 2024
3 Mar 2024 8125.2 µg/m³Europe, February and March 2024
11 Mar 2026 8024.5 µg/m³Europe, 1 to 12 March 2026
21 Feb 2025 7924.1 µg/m³–
22 Feb 2025 7823.7 µg/m³–
23 Feb 2025 7622.3 µg/m³–
19 Jan 2026 7120.1 µg/m³Europe, January and February 2026

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, Norrköping, Sweden, 11 Jan 2023 – 2 Jul 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/se/norrkoeping/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.

Norrköping 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).