SmogRank / France / Grand Est / Épinal

Épinal, month by month

Épinal has a measured daily mean on 907 days since 11 January 2023. Its worst month was February 2025, at 70 US AQI (19.5 µg/m³), 606th of 2,633 cities on that month's world ranking. Its cleanest was August 2023, at 22 US AQI (3.9 µg/m³).

Every month since 2023

202552 for the year279 days measured1,147th of 2,681 in the world
Jan20 daysFeb70#606Mar60#1,051Apr40#1,971May18 daysJun16 daysJul31#2,486Aug19 daysSep26#2,726Oct19 daysNov51#1,229Dec59#846
2024too few days for a mean (a year needs 257)164 days measured
Jan63#441Feb40#1,400Mar6 daysAprnoneMay1 dayJun2 daysJul30#2,159Aug15 daysSepnoneOct13 daysNov53#776Dec57#668
2023too few days for a mean (a year needs 256)210 days measured
Jan7 daysFeb56#547Mar16 daysApr3 daysMaynoneJunnoneJul12 daysAug22#1,924Sep26#2,040Oct29#1,696Nov24#2,075Dec39#1,520
Each square is a month's mean PM2.5 in US AQI from Épinal'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 Épinal 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
Jun 202618 of 30 days measured; a month needs 21. The others: 12 with under 18 hours of readings or readings that failed our checks.
Oct 202519 of 31 days measured; a month needs 22. The others: 12 with under 18 hours of readings or readings that failed our checks.
Aug 202519 of 31 days measured; a month needs 22. The others: 12 with under 18 hours of readings or readings that failed our checks.
Jun 202516 of 30 days measured; a month needs 21. The others: 14 with under 18 hours of readings or readings that failed our checks.
May 202518 of 31 days measured; a month needs 22. The others: 13 with under 18 hours of readings or readings that failed our checks.
Jan 202520 of 31 days measured; a month needs 22. The others: 11 with under 18 hours of readings or readings that failed our checks.
Oct 202413 of 31 days measured; a month needs 22. The others: 18 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.
Jun 20242 of 30 days measured; a month needs 21. The others: 28 with under 18 hours of readings or readings that failed our checks.
May 20241 of 31 days measured; a month needs 22. The others: 30 with under 18 hours of readings or readings that failed our checks.
Apr 2024No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Mar 20246 of 31 days measured; a month needs 22. The others: 25 with under 18 hours of readings or readings that failed our checks.
Jul 202312 of 31 days measured; a month needs 22. The others: 19 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 202316 of 31 days measured; a month needs 22. The others: 4 missing from OpenAQ's archive, 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.

Épinal's worst months

MonthUS AQIDays measuredWorld rankEpisode
February 2025 7019.5 µg/m³22 of 28606thof 2,633Europe, 14 February to 1 March 2025
Europe, 1 to 14 February 2025
January 2024 6315.3 µg/m³23 of 31441stof 2,385Europe, 8 to 27 January 2024
Western Europe, January 2024
March 2025 6013.7 µg/m³26 of 311,051stof 2,862Germany, Poland and 25 more countries, March 2025
Europe, 14 February to 1 March 2025
December 2025 5913.2 µg/m³29 of 31846thof 3,006Europe, December 2025 to January 2026
January 2026 5812.8 µg/m³22 of 31886thof 2,617Europe, December 2025 to January 2026
March 2026 5712.5 µg/m³31 of 311,124thof 2,971–

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.

Épinal's worst days

DayUS AQIEpisode
20 Jan 2025 13448.9 µg/m³Germany, France and 19 more countries, January 2025
11 Jan 2024 10938.6 µg/m³Europe, 8 to 27 January 2024
3 Mar 2023 10135.5 µg/m³Europe, 28 February to 4 March 2023
4 Mar 2023 9834.3 µg/m³Europe, 4 to 7 March 2023
Europe, 28 February to 4 March 2023
12 Jan 2024 9733.6 µg/m³Europe, 8 to 27 January 2024
10 Jan 2024 9633.5 µg/m³Europe, 8 to 27 January 2024
12 Mar 2025 9633.2 µg/m³Germany, Poland and 25 more countries, March 2025
29 Dec 2025 9432.0 µg/m³Europe, December 2025 to January 2026
19 Jan 2025 9331.6 µg/m³Germany, France and 19 more countries, January 2025
2 Mar 2023 9231.1 µg/m³Europe, 28 February to 4 March 2023

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, Épinal, France, 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/fr/epinal/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.

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

Updated 2026-10-12 18:07 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).