SmogRank / India / Madhya Pradesh / Indore
Indore, month by month
Indore has a measured daily mean on 553 days since 19 February 2025. Its worst month was February 2026, at 134 US AQI (49.0 µg/m³), 110th of 3,180 cities on that month's world ranking. Its cleanest was August 2025, at 59 US AQI (13.5 µg/m³).
Every month since 2025
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
3 months
| Month | Why |
|---|---|
| Oct 2026 | 9 of 13 days measured; a month needs 10. The others: 3 with no readings from the monitors, 1 with readings for part of the day (a day needs 18 hours). |
| Jan 2026 | 21 of 31 days measured; a month needs 22. The others: 9 with no readings from the monitors, 1 with readings for part of the day (a day needs 18 hours). |
| Feb 2025 | 10 of 28 days measured; a month needs 20. |
A day counts once 18 hours of it are measured; a month needs 70% of its days.
Indore's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| February 2026 | 13449.0 µg/m³ | 110thof 3,180 | – |
| November 2025 | 13147.6 µg/m³ | 181stof 2,935 | – |
| March 2026 | 12043.3 µg/m³ | 123rdof 3,285 | – |
| April 2026 | 11139.5 µg/m³ | 137thof 3,307 | – |
| December 2025 | 11039.3 µg/m³ | 263rdof 3,198 | – |
| October 2025 | 10336.5 µg/m³ | 153rdof 3,010 | India and Pakistan, October 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.
Indore's worst days
| Day | US AQI | Episode |
|---|---|---|
| 1 Jan 2026 | 226151.0 µg/m³ | – |
| 31 Dec 2025 | 188108.0 µg/m³ | – |
| 2 Jan 2026 | 18299.2 µg/m³ | – |
| 2 Nov 2025 | 17994.8 µg/m³ | – |
| 21 Oct 2025 | 16981.0 µg/m³ | India and Pakistan, October 2025 |
| 9 Oct 2025 | 16879.8 µg/m³ | India and Pakistan, October 2025 |
| 10 Oct 2025 | 16575.9 µg/m³ | India and Pakistan, October 2025 |
| 11 Feb 2026 | 16373.3 µg/m³ | – |
| 3 Mar 2026 | 16372.8 µg/m³ | – |
| 20 Oct 2025 | 16270.8 µg/m³ | India and Pakistan, October 2025 |
Daily means, the highest since 19 Feb 2025; 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, Indore, India, 19 Feb 2025 – 10 Oct 2026. Monitor data from CPCB via OpenAQ; sources listed at smogrank.com/sources. smogrank.com/in/indore/history (accessed 13 Oct 2026).
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.
Indore now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-13 19:07 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).