SmogRank / Canada / Alberta / St. Albert
St. Albert, month by month
St. Albert has a measured daily mean on 1,302 days since 5 January 2023. Its worst month was May 2023, at 93 US AQI (31.4 µg/m³), 57th of 1,600 cities on that month's world ranking. Its cleanest was April 2024, at 21 US AQI (3.7 µg/m³). 2025 averaged 52 US AQI (9.5 µg/m³), against 51 US AQI (9.2 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
3 months
| Month | Why |
|---|---|
| Mar 2023 | 11 of 31 days measured; a month needs 22. The others: 20 missing from OpenAQ's archive. |
| Feb 2023 | 2 of 28 days measured; a month needs 20. The others: 25 missing from OpenAQ's archive, 1 with under 18 hours of readings or readings that failed our checks. |
| Jan 2023 | 21 of 31 days measured; a month needs 22. The others: 6 missing from OpenAQ's archive. |
A day counts once 18 hours of it are measured; a month needs 70% of its days.
St. Albert's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| May 2023 | 9331.4 µg/m³ | 57thof 1,600 | North-western United States and Canada, May 2023 North-western Canada and United States, May 2023and 1 more |
| September 2023 | 8125.1 µg/m³ | 61stof 2,176 | Alberta, Saskatchewan and British Columbia, Canada, September 2023 Northern United States and Canada, August and September 2023and 1 more |
| September 2025 | 7421.4 µg/m³ | 183rdof 3,104 | North-western Canada and United States, September 2025 North-western United States and Canada, August and September 2025 |
| July 2024 | 6919.0 µg/m³ | 111thof 2,566 | North-western United States and Canada, July 2024 |
| July 2023 | 6918.8 µg/m³ | 81stof 1,432 | Alberta and Saskatchewan, Canada, July 2023 United States and Canada, July 2023and 2 more |
| August 2024 | 6617.1 µg/m³ | 140thof 2,010 | Alberta, Saskatchewan and Manitoba, Canada, 22 to 23 August 2024 North-western Canada and United States, August 2024and 1 more |
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.
St. Albert's worst days
Daily means, the highest since 5 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, St. Albert, Canada, 5 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/st-albert/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.
St. Albert now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-12 17:07 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).