SmogRank / Canada / Saskatchewan / Swift Current

Swift Current, month by month

Swift Current has a measured daily mean on 1,171 days since 26 April 2023. Its worst month was September 2023, at 81 US AQI (25.4 µg/m³), 59th of 2,176 cities on that month's world ranking. Its cleanest was June 2026, at 19 US AQI (3.5 µg/m³). 2025 averaged 47 US AQI (8.4 µg/m³), against 42 US AQI (7.5 µg/m³) in 2024.

Every month since 2023

202637 so far275 days measured2,348th of 2,791 in the world
Jan22#2,507Feb24#2,669Mar24#2,770Apr24#2,656May27#2,415Jun19#2,374Jul62#510Aug60#434Sep23#2,676Oct28#2,162
202547 for the year352 days measured1,595th of 2,681 in the world
Jan23#2,359Feb26#2,429Mar29#2,447Apr25#2,671May36#1,795Jun66#311Jul70#219Aug51#1,452Sep61#351Oct22#2,417Nov23#2,558Dec29#2,628
202442 for the year312 days measured1,288th of 2,097 in the world
Jan32#1,909Feb34#1,803Mar27#1,347Apr16 daysMay8 daysJun20#2,429Jul68#121Aug65#144Sep44#840Oct27#1,801Nov27#2,317Dec26#2,331
2023too few days for a mean (a year needs 256)232 days measured
JanFebMarApr5 daysMay78#83Jun57#522Jul21 daysAug73#119Sep81#59Oct32#1,587Nov33#1,719Dec21#2,150
Each square is a month's mean PM2.5 in US AQI from Swift Current's measured days, with its place on that month's world ranking under it. A month has a mean once 70% of its days are measured, the rule the monthly rankings use; under that, the square gives the days measured. Each square opens that month's ranking with Swift Current marked; each year, the year's. A dashed square is the running month, so far.
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

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

4 months
MonthWhy
May 20248 of 31 days measured; a month needs 22. The others: 23 with under 18 hours of readings or readings that failed our checks.
Apr 202416 of 30 days measured; a month needs 21. The others: 14 with under 18 hours of readings or readings that failed our checks.
Jul 202321 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 20235 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.

Swift Current's worst months

MonthUS AQIDays measuredWorld rankEpisode
September 2023 8125.4 µg/m³30 of 3059thof 2,176Alberta, Saskatchewan and British Columbia, Canada, September 2023
Northern United States and Canada, August and September 2023and 1 more
May 2023 7823.6 µg/m³29 of 3183rdof 1,600North-western United States and Canada, May 2023
North-western Canada and United States, May 2023and 1 more
August 2023 7320.7 µg/m³31 of 31119thof 1,980Northern United States and Canada, August and September 2023
North-western United States and Canada, August 2023
July 2025 7019.5 µg/m³31 of 31219thof 2,889North-western Canada and United States, 19 to 22 July 2025
North-western Canada and United States, 14 to 17 July 2025
July 2024 6818.2 µg/m³27 of 31121stof 2,566North-western United States and Canada, July 2024
June 2025 6617.0 µg/m³30 of 30311thof 2,508North-western Canada and United States, 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.

Swift Current's worst days

DayUS AQIEpisode
4 Sept 2023 280205.0 µg/m³Northern United States and Canada, August and September 2023
15 Jul 2023 234159.0 µg/m³United States and Canada, July 2023
20 May 2023 229154.0 µg/m³North-western United States and Canada, May 2023
17 May 2023 226151.0 µg/m³Northern United States and Canada, May 2023
15 Aug 2024 212137.0 µg/m³North-western Canada and United States, August 2024
22 Jul 2025 197121.0 µg/m³North-western Canada and United States, 19 to 22 July 2025
10 Jun 2025 194117.0 µg/m³North-western Canada and United States, June 2025
6 Aug 2023 17792.7 µg/m³–
15 Jul 2025 17285.4 µg/m³North-western Canada and United States, 14 to 17 July 2025
11 Jun 2025 17184.1 µg/m³North-western Canada and United States, June 2025

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, Swift Current, 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/swift-current/history (accessed 12 Oct 2026).

Download chart (PNG)

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.

Swift Current 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).