SmogRank / Canada / Alberta / Sherwood Park
Sherwood Park, month by month
Sherwood Park has a measured daily mean on 1,214 days since 1 January 2023. Its worst month was May 2023, at 81 US AQI (25.1 µg/m³), 78th of 1,600 cities on that month's world ranking. Its cleanest was April 2025, at 22 US AQI (4.0 µg/m³). 2025 averaged 50 US AQI (9.0 µg/m³), against 49 US AQI (8.9 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 | 10 of 31 days measured; a month needs 22. The others: 20 missing from OpenAQ's archive, 1 with under 18 hours of readings or readings that failed our checks. |
| 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, 4 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.
Sherwood Park's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| May 2023 | 8125.1 µg/m³ | 78thof 1,600 | North-western United States and Canada, May 2023 North-western Canada and United States, May 2023and 1 more |
| September 2023 | 7924.1 µg/m³ | 67thof 2,176 | Alberta, Saskatchewan and British Columbia, Canada, September 2023 Northern United States and Canada, August and September 2023and 1 more |
| September 2025 | 7220.3 µg/m³ | 211thof 3,104 | North-western Canada and United States, September 2025 North-western United States and Canada, August and September 2025 |
| July 2024 | 6717.5 µg/m³ | 128thof 2,566 | North-western United States and Canada, July 2024 |
| June 2023 | 6516.4 µg/m³ | 348thof 1,603 | Alberta, Saskatchewan and British Columbia, Canada, June 2023 |
| August 2024 | 6114.7 µg/m³ | 187thof 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.
Sherwood Park's worst days
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, Sherwood Park, 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/sherwood-park/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.
Sherwood Park now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-12 22:07 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).