SmogRank / Canada / British Columbia / Kelowna
Kelowna, month by month
Kelowna has a measured daily mean on 1,231 days since 1 January 2023. Its worst month was August 2023, at 114 US AQI (40.6 µg/m³), 33rd of 1,980 cities on that month's world ranking. Its cleanest was May 2024, at 13 US AQI (2.4 µg/m³). 2025 averaged 33 US AQI (6.0 µg/m³), against 28 US AQI (5.1 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 |
|---|---|
| Jul 2026 | 21 of 31 days measured; a month needs 22. The others: 10 with under 18 hours of readings or readings that failed our checks. |
| Jun 2026 | 18 of 30 days measured; a month needs 21. The others: 12 with under 18 hours of readings or readings that failed our checks. |
| Jan 2026 | 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 | 1 of 28 days measured; a month needs 20. The others: 25 missing from OpenAQ's archive, 2 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.
Kelowna's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| August 2023 | 11440.6 µg/m³ | 33rdof 1,980 | Northern United States and Canada, August and September 2023 North-western United States and Canada, August 2023 |
| August 2026 | 7823.4 µg/m³ | 188thof 2,896 | North-western United States and Canada, 4 to 22 August 2026 North-western United States and Canada, July and August 2026 |
| September 2025 | 6315.4 µg/m³ | 330thof 3,104 | North-western United States and Canada, September 2025 North-western Canada and United States, September 2025and 1 more |
| September 2023 | 498.9 µg/m³ | 807thof 2,176 | Northern United States and Canada, August and September 2023 |
| November 2023 | 478.4 µg/m³ | 1,028thof 2,243 | – |
| August 2024 | 448.0 µg/m³ | 1,232ndof 2,010 | – |
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.
Kelowna's worst days
| Day | US AQI | Episode |
|---|---|---|
| 20 Aug 2023 | 384267.0 µg/m³ | North-western United States and Canada, August 2023 |
| 19 Aug 2023 | 276201.0 µg/m³ | North-western United States and Canada, August 2023 |
| 21 Aug 2023 | 243168.0 µg/m³ | North-western United States and Canada, August 2023 |
| 11 Aug 2026 | 17894.3 µg/m³ | North-western United States and Canada, 4 to 22 August 2026 |
| 23 Jul 2026 | 17082.4 µg/m³ | North-western United States and Canada, July and August 2026 |
| 6 Aug 2026 | 15967.1 µg/m³ | North-western United States and Canada, 4 to 22 August 2026 |
| 7 Aug 2026 | 15459.8 µg/m³ | North-western United States and Canada, 4 to 22 August 2026 |
| 18 Aug 2023 | 15156.1 µg/m³ | North-western United States and Canada, August 2023 |
| 5 Aug 2023 | 14854.6 µg/m³ | – |
| 17 Aug 2023 | 14452.8 µg/m³ | North-western United States and Canada, August 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, Kelowna, 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/kelowna/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.
Kelowna now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-12 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).