SmogRank / United States / Alaska / Badger

Badger, month by month

Badger has a measured daily mean on 1,242 days since 1 January 2023. Its worst month was January 2023, at 85 US AQI (27.1 µg/m³), 80th of 1,261 cities on that month's world ranking. Its cleanest was June 2023, at 18 US AQI (3.2 µg/m³). 2025 averaged 54 US AQI (10.6 µg/m³), against 58 US AQI (12.9 µg/m³) in 2024.

Every month since 2023

Each square is a month's mean PM2.5 in US AQI from Badger'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 Badger 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

2 months
MonthWhy
Mar 202310 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 20231 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.

Badger's worst months

MonthUS AQIDays measuredWorld rank
January 2023 8527.1 µg/m³24 of 3180thof 1,261
June 2024 8326.1 µg/m³29 of 3057thof 2,563
August 2023 8125.2 µg/m³30 of 3173rdof 1,980
January 2025 8024.6 µg/m³30 of 31176thof 2,474
December 2024 7924.2 µg/m³31 of 31148thof 2,616
January 2024 7924.1 µg/m³27 of 31192ndof 2,385

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.

Badger's worst days

DayUS AQI
7 Aug 2023 223148.0 µg/m³
30 Jun 2024 220145.0 µg/m³
1 Jan 2024 210135.0 µg/m³
25 Jun 2024 201126.0 µg/m³
29 Jun 2024 198123.0 µg/m³
6 Aug 2023 195118.0 µg/m³
1 Jan 2025 18097.2 µg/m³
9 Aug 2023 17995.6 µg/m³
10 Aug 2023 17894.5 µg/m³
4 Jul 2025 17183.7 µg/m³

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, Badger, United States, 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/us/badger/history (accessed 12 Oct 2026).

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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.

Badger 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).