SmogRank / Canada / Alberta / Airdrie
Airdrie, month by month
Airdrie has a measured daily mean on 1,228 days since 1 January 2023. Its worst month was May 2023, at 86 US AQI (27.9 µg/m³), 67th of 1,600 cities on that month's world ranking. Its cleanest was February 2025, at 12 US AQI (2.2 µg/m³). 2025 averaged 33 US AQI (5.9 µg/m³), against 40 US AQI (7.2 µg/m³) in 2024.
Every month since 2023
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
5 months
| Month | Why |
|---|---|
| Oct 2025 | 11 of 31 days measured; a month needs 22. The others: 20 with under 18 hours of readings or readings that failed our checks. |
| Sep 2025 | 16 of 30 days measured; a month needs 21. The others: 14 with under 18 hours of readings or readings that failed our checks. |
| Aug 2025 | 15 of 31 days measured; a month needs 22. The others: 16 with under 18 hours of readings or readings that failed our checks. |
| Mar 2023 | 11 of 31 days measured; a month needs 22. The others: 20 missing from OpenAQ's archive. |
| Feb 2023 | 3 of 28 days measured; a month needs 20. The others: 25 missing from OpenAQ's archive. |
A day counts once 18 hours of it are measured; a month needs 70% of its days.
Airdrie's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| May 2023 | 8627.9 µg/m³ | 67thof 1,600 | North-western United States and Canada, May 2023 North-western Canada and United States, May 2023and 1 more |
| July 2026 | 6616.9 µg/m³ | 423rdof 2,784 | North-western United States and Canada, July and August 2026 |
| September 2023 | 6214.8 µg/m³ | 181stof 2,176 | Northern United States and Canada, August and September 2023 |
| July 2023 | 6114.4 µg/m³ | 174thof 1,432 | United States and Canada, July 2023 North-western Canada and United States, July 2023and 1 more |
| August 2026 | 6114.3 µg/m³ | 412thof 2,896 | North-western United States and Canada, 4 to 22 August 2026 North-western United States and Canada, July and August 2026 |
| August 2023 | 5913.3 µg/m³ | 260thof 1,980 | Northern United States and Canada, August and September 2023 North-western United States and Canada, August 2023 |
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.
Airdrie's worst days
| Day | US AQI | Episode |
|---|---|---|
| 20 May 2023 | 259184.0 µg/m³ | North-western United States and Canada, May 2023 |
| 17 May 2023 | 205130.0 µg/m³ | Northern United States and Canada, May 2023 |
| 16 May 2023 | 190111.0 µg/m³ | Northern United States and Canada, May 2023 |
| 4 Sept 2023 | 17893.7 µg/m³ | Northern United States and Canada, August and September 2023 |
| 21 May 2023 | 17589.1 µg/m³ | North-western United States and Canada, May 2023 |
| 11 Jun 2025 | 17386.9 µg/m³ | North-western Canada and United States, June 2025 |
| 24 Jul 2026 | 17285.0 µg/m³ | North-western United States and Canada, July and August 2026 |
| 15 Aug 2024 | 15865.1 µg/m³ | North-western Canada and United States, August 2024 |
| 23 Jul 2026 | 15865.1 µg/m³ | North-western United States and Canada, July and August 2026 |
| 15 Jun 2023 | 15561.2 µg/m³ | Alberta, Saskatchewan and British Columbia, Canada, June 2023 |
Daily means, the highest since 1 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, Airdrie, Canada, 1 Jan 2023 – 11 Oct 2026. Monitor data from AirNow, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/ca/airdrie/history (accessed 12 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.
Airdrie 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).