SmogRank / United States

Air quality in Miles City

Montana, United States. Measured until 6 Oct 2025; not measured today, so it is only on past boards. We make model estimates only for places of 15,000 people or more.

Its measured days

SmogRank measured Miles City with ground monitors from AirNow from 1 Jan 2023 to 6 Oct 2025: 941 days, averaging 7.8 µg/m³. Its monitors stopped giving readings we can use, so it isn't ranked today, but those days stay on the past boards: 941 day boards.

1102031Nov 2024DecJan 2025FebMarAprMayJunJulAugSepOct2024-11-01: 6.1 µg/m³2024-11-02: 5.3 µg/m³2024-11-03: 3.2 µg/m³2024-11-04: 3.0 µg/m³2024-11-05: 3.9 µg/m³2024-11-06: 3.4 µg/m³2024-11-07: 3.1 µg/m³2024-11-08: 4.4 µg/m³2024-11-09: 3.6 µg/m³2024-11-10: 4.0 µg/m³2024-11-11: 4.9 µg/m³2024-11-12: 5.5 µg/m³2024-11-13: 3.1 µg/m³2024-11-14: 4.4 µg/m³2024-11-15: 3.2 µg/m³2024-11-16: 5.4 µg/m³2024-11-17: 3.6 µg/m³2024-11-18: 2.7 µg/m³2024-11-19: 3.2 µg/m³2024-11-20: 2.2 µg/m³2024-11-21: 6.4 µg/m³2024-11-22: 6.4 µg/m³2024-11-23: 10.2 µg/m³2024-11-24: 7.3 µg/m³2024-11-25: 6.2 µg/m³2024-11-26: 4.5 µg/m³2024-11-27: 6.1 µg/m³2024-11-28: 8.1 µg/m³2024-11-29: 5.6 µg/m³2024-11-30: 7.0 µg/m³2024-12-01: 10.0 µg/m³2024-12-02: 7.1 µg/m³2024-12-03: 5.0 µg/m³2024-12-04: 3.7 µg/m³2024-12-05: 7.0 µg/m³2024-12-06: 3.9 µg/m³2024-12-07: 4.0 µg/m³2024-12-08: 4.2 µg/m³2024-12-09: 2.9 µg/m³2024-12-10: 4.8 µg/m³2024-12-11: 3.1 µg/m³2024-12-12: 4.5 µg/m³2024-12-13: 5.6 µg/m³2024-12-14: 10.1 µg/m³2024-12-15: 4.7 µg/m³2024-12-16: 4.4 µg/m³2024-12-17: 13.3 µg/m³2024-12-18: 7.3 µg/m³2024-12-19: 5.0 µg/m³2024-12-20: 3.9 µg/m³2024-12-21: 3.7 µg/m³2024-12-22: 3.8 µg/m³2024-12-23: 3.2 µg/m³2024-12-24: 2.5 µg/m³2024-12-25: 3.1 µg/m³2024-12-26: 2.5 µg/m³2024-12-27: 2.5 µg/m³2024-12-28: 3.6 µg/m³2024-12-29: 3.6 µg/m³2024-12-30: 4.2 µg/m³2024-12-31: 3.7 µg/m³2025-01-01: 5.9 µg/m³2025-01-02: 4.8 µg/m³2025-01-03: 3.7 µg/m³2025-01-04: 5.3 µg/m³2025-01-05: 3.4 µg/m³2025-01-06: 5.8 µg/m³2025-01-07: 5.9 µg/m³2025-01-08: 2.8 µg/m³2025-01-09: 4.0 µg/m³2025-01-10: 2.9 µg/m³2025-01-11: 2.6 µg/m³2025-01-12: 4.0 µg/m³2025-01-13: 3.0 µg/m³2025-01-14: 4.3 µg/m³2025-01-15: 4.4 µg/m³2025-01-16: 3.5 µg/m³2025-01-17: 2.9 µg/m³2025-01-18: 2.2 µg/m³2025-01-19: 4.1 µg/m³2025-01-20: 4.0 µg/m³2025-01-21: 3.7 µg/m³2025-01-22: 4.8 µg/m³2025-01-23: 2.9 µg/m³2025-01-24: 3.3 µg/m³2025-01-25: 2.8 µg/m³2025-01-26: 3.2 µg/m³2025-01-27: 4.9 µg/m³2025-01-28: 3.6 µg/m³2025-01-29: 2.5 µg/m³2025-01-30: 4.9 µg/m³2025-01-31: 4.9 µg/m³2025-02-01: 4.0 µg/m³2025-02-02: 3.9 µg/m³2025-02-03: 4.5 µg/m³2025-02-04: 2.9 µg/m³2025-02-05: 4.8 µg/m³2025-02-06: 6.5 µg/m³2025-02-07: 4.9 µg/m³2025-02-08: 6.4 µg/m³2025-02-09: 8.6 µg/m³2025-02-10: 5.6 µg/m³2025-02-11: 4.8 µg/m³2025-02-12: 6.9 µg/m³2025-02-13: 6.8 µg/m³2025-02-14: 8.0 µg/m³2025-02-15: 9.9 µg/m³2025-02-16: 6.8 µg/m³2025-02-17: 6.2 µg/m³2025-02-18: 6.5 µg/m³2025-02-19: 5.6 µg/m³2025-02-20: 8.7 µg/m³2025-02-21: 9.9 µg/m³2025-02-22: 4.3 µg/m³2025-02-23: 3.3 µg/m³2025-02-24: 2.8 µg/m³2025-02-25: 2.4 µg/m³2025-02-26: 3.3 µg/m³2025-02-27: 2.1 µg/m³2025-02-28: 2.9 µg/m³2025-03-01: 2.8 µg/m³2025-03-02: 4.9 µg/m³2025-03-03: 7.0 µg/m³2025-03-04: 4.0 µg/m³2025-03-05: 3.2 µg/m³2025-03-06: 5.5 µg/m³2025-03-07: 5.2 µg/m³2025-03-08: 3.7 µg/m³2025-03-09: 3.9 µg/m³2025-03-10: 5.2 µg/m³2025-03-11: 4.1 µg/m³2025-03-12: 6.8 µg/m³2025-03-13: 5.6 µg/m³2025-03-14: 4.2 µg/m³2025-03-15: 4.8 µg/m³2025-03-16: 2.7 µg/m³2025-03-17: 3.8 µg/m³2025-03-18: 5.0 µg/m³2025-03-19: 4.8 µg/m³2025-03-20: 2.7 µg/m³2025-03-21: 3.9 µg/m³2025-03-22: 3.2 µg/m³2025-03-23: 2.8 µg/m³2025-03-24: 2.8 µg/m³2025-03-25: 3.3 µg/m³2025-03-26: 3.0 µg/m³2025-03-27: 2.9 µg/m³2025-03-28: 5.9 µg/m³2025-03-29: 6.2 µg/m³2025-03-30: 4.6 µg/m³2025-03-31: 3.5 µg/m³2025-04-01: 4.3 µg/m³2025-04-02: 5.7 µg/m³2025-04-03: 6.7 µg/m³2025-04-04: 5.0 µg/m³2025-04-05: 2.8 µg/m³2025-04-06: 3.4 µg/m³2025-04-07: 4.1 µg/m³2025-04-08: 3.8 µg/m³2025-04-09: 3.5 µg/m³2025-04-10: 4.8 µg/m³2025-04-11: 9.3 µg/m³2025-04-12: 6.1 µg/m³2025-04-13: 4.1 µg/m³2025-04-14: 4.1 µg/m³2025-04-15: 6.2 µg/m³2025-04-16: 5.7 µg/m³2025-04-17: 3.0 µg/m³2025-04-18: 3.1 µg/m³2025-04-19: 3.1 µg/m³2025-04-20: 3.7 µg/m³2025-04-21: 2.8 µg/m³2025-04-22: 3.1 µg/m³2025-04-23: 3.2 µg/m³2025-04-24: 3.9 µg/m³2025-04-25: 4.4 µg/m³2025-04-26: 2.6 µg/m³2025-04-27: 4.9 µg/m³2025-04-28: 5.8 µg/m³2025-04-29: 4.0 µg/m³2025-04-30: 7.8 µg/m³2025-05-01: 3.7 µg/m³2025-05-02: 3.0 µg/m³2025-05-03: 3.5 µg/m³2025-05-04: 5.3 µg/m³2025-05-05: 6.8 µg/m³2025-05-06: 3.8 µg/m³2025-05-07: 5.8 µg/m³2025-05-08: 4.9 µg/m³2025-05-09: 7.0 µg/m³2025-05-10: 5.9 µg/m³2025-05-11: 5.5 µg/m³2025-05-12: 5.0 µg/m³2025-05-13: 4.4 µg/m³2025-05-14: 7.5 µg/m³2025-05-15: 8.9 µg/m³2025-05-16: 7.9 µg/m³2025-05-17: 5.3 µg/m³2025-05-18: 4.2 µg/m³2025-05-19: 4.6 µg/m³2025-05-20: 2.0 µg/m³2025-05-21: 4.7 µg/m³2025-05-22: 3.8 µg/m³2025-05-23: 4.7 µg/m³2025-05-24: 3.8 µg/m³2025-05-25: 4.2 µg/m³2025-05-26: 3.0 µg/m³2025-05-27: 4.0 µg/m³2025-05-28: 3.1 µg/m³2025-05-29: 3.3 µg/m³2025-05-30: 6.5 µg/m³2025-05-31: 8.3 µg/m³2025-06-01: 9.0 µg/m³2025-06-02: 7.0 µg/m³2025-06-03: 10.9 µg/m³2025-06-04: 5.7 µg/m³2025-06-05: 5.8 µg/m³2025-06-06: 4.7 µg/m³2025-06-07: 18.1 µg/m³2025-06-08: 16.5 µg/m³2025-06-09: 13.5 µg/m³2025-06-10: 19.1 µg/m³2025-06-11: 31.3 µg/m³2025-06-12: 32.0 µg/m³2025-06-13: 11.9 µg/m³2025-06-14: 6.7 µg/m³2025-06-15: 8.0 µg/m³2025-06-16: 4.2 µg/m³2025-06-17: 5.1 µg/m³2025-06-18: 7.1 µg/m³2025-06-19: 6.8 µg/m³2025-06-20: 6.5 µg/m³2025-06-21: 8.5 µg/m³2025-06-22: 3.7 µg/m³2025-06-23: 3.1 µg/m³2025-06-24: 4.5 µg/m³2025-06-25: 6.0 µg/m³2025-06-26: 7.0 µg/m³2025-06-27: 6.3 µg/m³2025-06-28: 5.5 µg/m³2025-06-29: 4.7 µg/m³2025-06-30: 3.7 µg/m³2025-07-01: 5.0 µg/m³2025-07-02: 6.0 µg/m³2025-07-03: 5.9 µg/m³2025-07-04: 8.6 µg/m³2025-07-05: 8.0 µg/m³2025-07-06: 5.7 µg/m³2025-07-07: 5.1 µg/m³2025-07-08: 6.3 µg/m³2025-07-09: 9.6 µg/m³2025-07-10: no data2025-07-11: 4.2 µg/m³2025-07-12: 5.9 µg/m³2025-07-13: 6.4 µg/m³2025-07-14: 6.9 µg/m³2025-07-15: 8.3 µg/m³2025-07-16: 4.4 µg/m³2025-07-17: 5.8 µg/m³2025-07-18: 7.2 µg/m³2025-07-19: 7.1 µg/m³2025-07-20: 5.9 µg/m³2025-07-21: 7.6 µg/m³2025-07-22: 28.7 µg/m³2025-07-23: 7.5 µg/m³2025-07-24: 8.2 µg/m³2025-07-25: 7.0 µg/m³2025-07-26: 6.2 µg/m³2025-07-27: 3.9 µg/m³2025-07-28: 6.7 µg/m³2025-07-29: 8.6 µg/m³2025-07-30: 17.0 µg/m³2025-07-31: 10.7 µg/m³2025-08-01: 13.6 µg/m³2025-08-02: 10.1 µg/m³2025-08-03: 6.9 µg/m³2025-08-04: 8.5 µg/m³2025-08-05: 6.9 µg/m³2025-08-06: 4.9 µg/m³2025-08-07: 7.7 µg/m³2025-08-08: 2.9 µg/m³2025-08-09: 16.3 µg/m³2025-08-10: 47.4 µg/m³2025-08-11: 7.0 µg/m³2025-08-12: 4.5 µg/m³2025-08-13: 5.2 µg/m³2025-08-14: 6.2 µg/m³2025-08-15: 8.8 µg/m³2025-08-16: 8.3 µg/m³2025-08-17: 10.5 µg/m³2025-08-18: 7.5 µg/m³2025-08-19: 8.3 µg/m³2025-08-20: 7.7 µg/m³2025-08-21: 6.1 µg/m³2025-08-22: 4.6 µg/m³2025-08-23: 5.1 µg/m³2025-08-24: 6.1 µg/m³2025-08-25: 5.2 µg/m³2025-08-26: 4.9 µg/m³2025-08-27: 5.1 µg/m³2025-08-28: 6.9 µg/m³2025-08-29: 5.8 µg/m³2025-08-30: 5.8 µg/m³2025-08-31: 5.3 µg/m³2025-09-01: 6.0 µg/m³2025-09-02: 16.7 µg/m³2025-09-03: 24.4 µg/m³2025-09-04: 20.4 µg/m³2025-09-05: 6.4 µg/m³2025-09-06: 7.5 µg/m³2025-09-07: 9.5 µg/m³2025-09-08: 17.8 µg/m³2025-09-09: 18.3 µg/m³2025-09-10: 13.2 µg/m³2025-09-11: 8.5 µg/m³2025-09-12: 7.2 µg/m³2025-09-13: 6.0 µg/m³2025-09-14: 5.6 µg/m³2025-09-15: 7.1 µg/m³2025-09-16: 7.1 µg/m³2025-09-17: 8.0 µg/m³2025-09-18: 9.0 µg/m³2025-09-19: 11.3 µg/m³2025-09-20: 7.7 µg/m³2025-09-21: 7.5 µg/m³2025-09-22: 6.6 µg/m³2025-09-23: 5.2 µg/m³2025-09-24: 9.4 µg/m³2025-09-25: 7.8 µg/m³2025-09-26: 13.5 µg/m³2025-09-27: 20.3 µg/m³2025-09-28: 16.0 µg/m³2025-09-29: 12.1 µg/m³2025-09-30: 5.7 µg/m³2025-10-01: 5.1 µg/m³2025-10-02: 4.5 µg/m³2025-10-03: 3.6 µg/m³2025-10-04: 6.1 µg/m³2025-10-05: 3.2 µg/m³2025-10-06: 4.4 µg/m³
Its last 12 measured months, one row per month, each square a day's mean PM2.5. Blank: no measured value that day.

Its highest places on the daily boards

DayRankµg/m³
5 Sep 2023#2of 2,162 111.0
17 May 2023#2of 1,840 177.0
16 Jul 2023#9of 911 86.3
10 Sep 2024#11of 1,944 60.8
15 Jul 2023#14of 859 76.0
9 Sep 2024#19of 1,930 53.7
18 May 2023#21of 1,840 73.9
16 Aug 2024#22of 1,995 46.0
6 Sep 2023#22of 2,090 52.8
4 Sep 2023#22of 2,112 79.5

Use this history

SmogRank, measured PM2.5 daily means, Miles City, United States, 1 Jan 2023 to 6 Oct 2025, smogrank.com/us/miles-city (accessed 5 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.

Cities measured in United States today