SmogRank / United States / California / Live Oak

Live Oak, month by month

Live Oak has a measured daily mean on 470 days since 20 June 2024. Its worst month was December 2024, at 44 US AQI (8.0 µg/m³), 1,364th of 2,616 cities on that month's world ranking. Its cleanest was March 2025, at 28 US AQI (5.0 µg/m³).

Every month since 2024

2026too few days for a mean (a year needs 199)108 days measured
Jan35#2,028Feb14 daysMar21 daysApr2 daysMay5 daysJun3 daysJul4 daysAug8 daysSep20 daysOct7 days
2025too few days for a mean (a year needs 256)205 days measured
Jan15 daysFeb17 daysMar28#2,490Apr19 daysMay3 daysJun5 daysJul20 daysAug34#2,450Sep33#2,096Oct15 daysNov20 daysDec18 days
2024too few days for a mean (a year needs 257)157 days measured
JanFebMarAprMayJun10 daysJul37#1,819Aug21 daysSep14 daysOct33#1,526Nov32#2,112Dec44#1,364
Each square is a month's mean PM2.5 in US AQI from Live Oak'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 Live Oak marked; each year, the year's.
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

21 months
MonthWhy
Oct 20267 of 11 days measured; a month needs 8. The others: 4 with readings for part of the day (a day needs 18 hours).
Sep 202620 of 30 days measured; a month needs 21. The others: 6 with readings for part of the day (a day needs 18 hours), 4 with under 18 hours of readings or readings that failed our checks.
Aug 20268 of 31 days measured; a month needs 22. The others: 23 with under 18 hours of readings or readings that failed our checks.
Jul 20264 of 31 days measured; a month needs 22. The others: 27 with under 18 hours of readings or readings that failed our checks.
Jun 20263 of 30 days measured; a month needs 21. The others: 27 with under 18 hours of readings or readings that failed our checks.
May 20265 of 31 days measured; a month needs 22. The others: 26 with under 18 hours of readings or readings that failed our checks.
Apr 20262 of 30 days measured; a month needs 21. The others: 28 with under 18 hours of readings or readings that failed our checks.
Mar 202621 of 31 days measured; a month needs 22. The others: 10 with under 18 hours of readings or readings that failed our checks.
Feb 202614 of 28 days measured; a month needs 20. The others: 14 with under 18 hours of readings or readings that failed our checks.
Dec 202518 of 31 days measured; a month needs 22. The others: 13 with under 18 hours of readings or readings that failed our checks.
Nov 202520 of 30 days measured; a month needs 21. The others: 10 with under 18 hours of readings or readings that failed our checks.
Oct 202515 of 31 days measured; a month needs 22. The others: 16 with under 18 hours of readings or readings that failed our checks.
Jul 202520 of 31 days measured; a month needs 22. The others: 11 with under 18 hours of readings or readings that failed our checks.
Jun 20255 of 30 days measured; a month needs 21. The others: 25 with under 18 hours of readings or readings that failed our checks.
May 20253 of 31 days measured; a month needs 22. The others: 28 with under 18 hours of readings or readings that failed our checks.
Apr 202519 of 30 days measured; a month needs 21. The others: 11 with under 18 hours of readings or readings that failed our checks.
Feb 202517 of 28 days measured; a month needs 20. The others: 11 with under 18 hours of readings or readings that failed our checks.
Jan 202515 of 31 days measured; a month needs 22. The others: 16 with under 18 hours of readings or readings that failed our checks.
Sep 202414 of 30 days measured; a month needs 21. The others: 16 with under 18 hours of readings or readings that failed our checks.
Aug 202421 of 31 days measured; a month needs 22. The others: 10 with under 18 hours of readings or readings that failed our checks.
Jun 202410 of 30 days measured; a month needs 21. The others: 1 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.

Live Oak's worst months

MonthUS AQIDays measuredWorld rank
December 2024 448.0 µg/m³31 of 311,364thof 2,616
July 2024 376.6 µg/m³23 of 311,819thof 2,566
January 2026 356.3 µg/m³24 of 312,028thof 2,617
August 2025 346.2 µg/m³26 of 312,450thof 2,901
September 2025 336.0 µg/m³25 of 302,096thof 3,104
October 2024 335.9 µg/m³28 of 311,526thof 2,020

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.

Live Oak's worst days

DayUS AQI
11 Dec 2024 7119.6 µg/m³
10 Dec 2024 6516.5 µg/m³
18 Jan 2025 5813.1 µg/m³
8 Dec 2024 5813.0 µg/m³
17 Jan 2025 5812.9 µg/m³
5 Jul 2024 5812.8 µg/m³
19 Jan 2025 5812.6 µg/m³
30 Nov 2025 5712.1 µg/m³
20 Jan 2025 5612.0 µg/m³
8 Nov 2024 5611.7 µg/m³

Daily means, the highest since 20 Jun 2024; 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, Live Oak, United States, 20 Jun 2024 – 11 Oct 2026. Monitor data from Clarity via OpenAQ; sources listed at smogrank.com/sources. smogrank.com/us/live-oak/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.

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

Updated 2026-10-12 22:07 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).