SmogRank / United States / Arizona / Show Low

Show Low, month by month

Show Low has a measured daily mean on 487 days since 8 April 2025. Its worst month was August 2025, at 54 US AQI (10.7 µg/m³), 1,069th of 2,901 cities on that month's world ranking. Its cleanest was May 2026, at 23 US AQI (4.1 µg/m³).

Every month since 2025

202636 so far269 days measured2,399th of 2,791 in the world
Jan43#1,558Feb33#2,427Mar37#2,424Apr31#2,368May23#2,627Jun31#2,013Jul41#2,069Aug43#1,715Sep34#1,641Oct46#931
2025too few days for a mean (a year needs 256)218 days measured
JanFebMarApr36#2,156May21 daysJun20 daysJul51#1,469Aug54#1,069Sep51#870Oct52#583Nov20 daysDec36#2,350
Each square is a month's mean PM2.5 in US AQI from Show Low'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 Show Low 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

3 months
MonthWhy
Nov 202520 of 30 days measured; a month needs 21. The others: 10 with readings for part of the day (a day needs 18 hours).
Jun 202520 of 30 days measured; a month needs 21. The others: 3 with no readings from the monitor, 5 with readings for part of the day (a day needs 18 hours), 2 with readings left out by our checks.
May 202521 of 31 days measured; a month needs 22. The others: 9 with no readings from the monitor, 1 with readings for part of the day (a day needs 18 hours).

A day counts once 18 hours of it are measured; a month needs 70% of its days.

Show Low's worst months

MonthUS AQIDays measuredWorld rank
August 2025 5410.7 µg/m³26 of 311,069thof 2,901
October 2025 529.8 µg/m³27 of 31583rdof 2,614
July 2025 519.2 µg/m³29 of 311,469thof 2,889
September 2025 519.1 µg/m³21 of 30870thof 3,104
January 2026 437.8 µg/m³30 of 311,558thof 2,617
August 2026 437.8 µg/m³29 of 311,715thof 2,896

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.

Show Low's worst days

DayUS AQI
30 Oct 2025 15257.6 µg/m³
5 Sept 2025 8426.9 µg/m³
7 Aug 2025 8225.5 µg/m³
11 Jun 2025 7522.2 µg/m³
13 Jun 2025 7019.2 µg/m³
3 Jan 2026 6918.8 µg/m³
11 Aug 2025 6918.7 µg/m³
10 Jun 2025 6818.1 µg/m³
12 Jun 2025 6516.7 µg/m³
7 Nov 2025 6114.3 µg/m³

Daily means, the highest since 8 Apr 2025; 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, Show Low, United States, 8 Apr 2025 – 9 Oct 2026. Monitor data from AirNow, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/us/show-low/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.

Show Low now: the last 24 hours, its ranks today and the last 12 months day by day.

Updated 2026-10-12 20:07 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).