SmogRank / France / Occitanie / Montauban

Montauban, month by month

Montauban has a measured daily mean on 563 days since 11 January 2023. Its worst month was February 2023, at 74 US AQI (21.5 µg/m³), 99th of 1,129 cities on that month's world ranking. Its cleanest was September 2025, at 22 US AQI (4.0 µg/m³).

Every month since 2023

2026too few days for a mean (a year needs 199)193 days measured
Jan13 daysFeb16 daysMar21 daysApr32#2,271May19 daysJun16 daysJul55#1,069Aug49#1,219Sep20 daysOct27#2,226
2025too few days for a mean (a year needs 256)174 days measured
Jan16 daysFeb18 daysMar17 daysApr12 daysMay12 daysJun4 daysJul16 daysAug13 daysSep22#2,940Oct11 daysNov15 daysDec19 days
2024too few days for a mean (a year needs 257)140 days measured
Jan3 daysFeb50#839Mar10 daysApr2 daysMaynoneJun1 dayJul34#1,925Aug13 daysSepnoneOct11 daysNov57#550Dec58#595
2023too few days for a mean (a year needs 256)56 days measured
Jan7 daysFeb74#99Mar20 daysApr3 daysMaynoneJunnoneJul1 dayAugnoneSepnoneOctnoneNovnoneDecnone
Each square is a month's mean PM2.5 in US AQI from Montauban'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 Montauban 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

36 months
MonthWhy
Sep 202620 of 30 days measured; a month needs 21. The others: 10 with readings for part of the day (a day needs 18 hours).
Jun 202616 of 30 days measured; a month needs 21. The others: 14 with under 18 hours of readings or readings that failed our checks.
May 202619 of 31 days measured; a month needs 22. The others: 12 with under 18 hours of readings or readings that failed our checks.
Mar 202621 of 31 days measured; a month needs 22. The others: 10 with under 18 hours of readings or readings that failed our checks.
Feb 202616 of 28 days measured; a month needs 20. The others: 12 with under 18 hours of readings or readings that failed our checks.
Jan 202613 of 31 days measured; a month needs 22. The others: 18 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.
Nov 202515 of 30 days measured; a month needs 21. The others: 15 with under 18 hours of readings or readings that failed our checks.
Oct 202511 of 31 days measured; a month needs 22. The others: 20 with under 18 hours of readings or readings that failed our checks.
Aug 202513 of 31 days measured; a month needs 22. The others: 18 with under 18 hours of readings or readings that failed our checks.
Jul 202516 of 31 days measured; a month needs 22. The others: 15 with under 18 hours of readings or readings that failed our checks.
Jun 20254 of 30 days measured; a month needs 21. The others: 26 with under 18 hours of readings or readings that failed our checks.
May 202512 of 31 days measured; a month needs 22. The others: 19 with under 18 hours of readings or readings that failed our checks.
Apr 202512 of 30 days measured; a month needs 21. The others: 18 with under 18 hours of readings or readings that failed our checks.
Mar 202517 of 31 days measured; a month needs 22. The others: 14 with under 18 hours of readings or readings that failed our checks.
Feb 202518 of 28 days measured; a month needs 20. The others: 10 with under 18 hours of readings or readings that failed our checks.
Jan 202516 of 31 days measured; a month needs 22. The others: 15 with under 18 hours of readings or readings that failed our checks.
Oct 202411 of 31 days measured; a month needs 22. The others: 20 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.
Jun 20241 of 30 days measured; a month needs 21. The others: 29 with under 18 hours of readings or readings that failed our checks.
May 2024No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Apr 20242 of 30 days measured; a month needs 21. The others: 28 with under 18 hours of readings or readings that failed our checks.
Mar 202410 of 31 days measured; a month needs 22. The others: 21 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.

Montauban's worst months

MonthUS AQIDays measuredWorld rankEpisode
February 2023 7421.5 µg/m³25 of 2899thof 1,129Europe, 28 February to 4 March 2023
Europe, 6 to 25 February 2023and 1 more
December 2024 5813.0 µg/m³22 of 31595thof 2,616Europe, 24 December 2024 to 3 January 2025
November 2024 5712.3 µg/m³25 of 30550thof 2,624–
July 2026 5511.2 µg/m³27 of 311,069thof 2,784France, July 2026
February 2024 509.0 µg/m³27 of 29839thof 2,486–
August 2026 498.9 µg/m³27 of 311,219thof 2,896–

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.

Montauban's worst days

DayUS AQIEpisode
28 Dec 2024 12043.4 µg/m³Europe, 24 December 2024 to 3 January 2025
12 Feb 2023 11942.9 µg/m³Europe, 6 to 25 February 2023
4 Mar 2023 11541.3 µg/m³Europe, 4 to 7 March 2023
Europe, 28 February to 4 March 2023
14 Aug 2026 11340.4 µg/m³–
5 Mar 2023 11340.3 µg/m³Europe, 4 to 7 March 2023
11 Feb 2023 11239.8 µg/m³Europe, 6 to 25 February 2023
6 Mar 2023 10637.7 µg/m³Europe, 4 to 7 March 2023
10 Feb 2023 10336.4 µg/m³Europe, 6 to 25 February 2023
20 Jan 2025 10336.2 µg/m³Germany, France and 19 more countries, January 2025
25 Jul 2026 10235.9 µg/m³France, July 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, Montauban, 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/montauban/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.

Montauban 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).