SmogRank / Canada / Saskatchewan / Saskatoon
Saskatoon, month by month
Saskatoon has a measured daily mean on 1,212 days since 26 April 2023. Its worst month was September 2023, at 113 US AQI (40.4 µg/m³), 18th of 2,176 cities on that month's world ranking. Its cleanest was January 2025, at 24 US AQI (4.3 µg/m³). 2025 averaged 55 US AQI (11.4 µg/m³), against 54 US AQI (10.5 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
2 months
| Month | Why |
|---|---|
| Jul 2023 | 21 of 31 days measured; a month needs 22. The others: 1 missing from OpenAQ's archive, 9 with under 18 hours of readings or readings that failed our checks. |
| Apr 2023 | 5 of 30 days measured; a month needs 21. |
A day counts once 18 hours of it are measured; a month needs 70% of its days.
Saskatoon's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| September 2023 | 11340.4 µg/m³ | 18thof 2,176 | Alberta, Saskatchewan and British Columbia, Canada, September 2023 Alberta, British Columbia and Saskatchewan, Canada, September 2023and 2 more |
| July 2024 | 9029.8 µg/m³ | 60thof 2,566 | North-western United States and Canada, July 2024 Alberta, Saskatchewan and Manitoba, Canada, July 2024 |
| July 2025 | 8828.8 µg/m³ | 93rdof 2,889 | North-western Canada and United States, 19 to 22 July 2025 North-western Canada and United States, 14 to 17 July 2025 |
| May 2023 | 8125.4 µg/m³ | 74thof 1,600 | North-western United States and Canada, May 2023 North-western Canada and United States, May 2023and 1 more |
| August 2024 | 7924.3 µg/m³ | 73rdof 2,010 | Alberta, Saskatchewan and Manitoba, Canada, 22 to 23 August 2024 North-western Canada and United States, August 2024and 1 more |
| June 2025 | 7522.2 µg/m³ | 189thof 2,508 | North-western Canada and United States, June 2025 Alberta, Saskatchewan and Manitoba, Canada, May and June 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.
Saskatoon's worst days
Daily means, the highest since 26 Apr 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, Saskatoon, Canada, 26 Apr 2023 – 11 Oct 2026. Monitor data from AirNow, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/ca/saskatoon/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.
Saskatoon 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).