SmogRank / Finland / Central Finland / Jyväskylä

Jyväskylä, month by month

Jyväskylä has a measured daily mean on 823 days since 11 January 2023. Its worst month was July 2025, at 52 US AQI (9.6 µg/m³), 1,361st of 2,889 cities on that month's world ranking. Its cleanest was December 2025, at 9 US AQI (1.7 µg/m³).

Every month since 2023

202627 so far248 days measured2,664th of 2,791 in the world
Jan20 daysFeb36#2,340Mar42#2,255Apr32#2,271May24#2,540Jun21#2,337Jul24#2,682Aug24#2,818Sep15#2,942Oct19#2,605
202527 for the year290 days measured2,543rd of 2,681 in the world
Jan22#2,382Feb33#2,154Mar41#2,035Apr34#2,237May24#2,515Jun19 daysJul52#1,361Aug22#2,806Sep27#2,690Oct21 daysNov14#2,693Dec9#3,000
2024too few days for a mean (a year needs 257)229 days measured
Jan3 daysFeb30#2,023Mar15 daysApr27#2,029May39#1,654Jun33#2,051Jul34#1,948Aug15 daysSepnoneOct10 daysNov14#2,595Dec13#2,591
2023too few days for a mean (a year needs 256)56 days measured
Jan7 daysFeb30#1,051Mar20 daysApr3 daysMaynoneJunnoneJul1 dayAugnoneSepnoneOctnoneNovnoneDecnone
Each square is a month's mean PM2.5 in US AQI from Jyväskylä'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 Jyväskylä 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

19 months
MonthWhy
Jan 202620 of 31 days measured; a month needs 22. The others: 11 with under 18 hours of readings or readings that failed our checks.
Oct 202521 of 31 days measured; a month needs 22. The others: 10 with under 18 hours of readings or readings that failed our checks.
Jun 202519 of 30 days measured; a month needs 21. The others: 11 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 202415 of 31 days measured; a month needs 22. The others: 16 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.

Jyväskylä's worst months

MonthUS AQIDays measuredWorld rank
July 2025 529.6 µg/m³27 of 311,361stof 2,889
March 2026 427.5 µg/m³28 of 312,255thof 2,971
March 2025 417.4 µg/m³25 of 312,035thof 2,862
May 2024 397.1 µg/m³31 of 311,654thof 2,684
February 2026 366.5 µg/m³24 of 282,340thof 2,866
April 2025 346.2 µg/m³24 of 302,237thof 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.

Jyväskylä's worst days

DayUS AQI
22 Feb 2023 8326.4 µg/m³
30 Mar 2025 7723.3 µg/m³
1 Jun 2024 7622.5 µg/m³
9 Feb 2024 7522.2 µg/m³
11 Mar 2026 7522.2 µg/m³
23 Feb 2025 7421.5 µg/m³
31 Mar 2025 7220.6 µg/m³
31 May 2024 7220.2 µg/m³
7 Mar 2023 7119.9 µg/m³
25 May 2024 7119.8 µg/m³

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, Jyväskylä, Finland, 11 Jan 2023 – 11 Oct 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/fi/jyvaeskylae/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.

Jyväskylä 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).