SmogRank / United States / California / Paradise
Paradise, month by month
Paradise, California has a measured daily mean on 1,219 days since 1 January 2023. Its worst month was June 2023, at 63 US AQI (15.6 µg/m³), 366th of 1,603 cities on that month's world ranking. Its cleanest was November 2024, at 17 US AQI (3.1 µg/m³). 2025 averaged 27 US AQI (4.9 µg/m³), against 29 US AQI (5.2 µg/m³) in 2024.
Every month since 2023
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
5 months
| Month | Why |
|---|---|
| Nov 2025 | 17 of 30 days measured; a month needs 21. The others: 13 with under 18 hours of readings or readings that failed our checks. |
| Dec 2024 | 20 of 31 days measured; a month needs 22. The others: 11 with under 18 hours of readings or readings that failed our checks. |
| Oct 2024 | 21 of 31 days measured; a month needs 22. The others: 10 with under 18 hours of readings or readings that failed our checks. |
| Mar 2023 | 11 of 31 days measured; a month needs 22. The others: 20 missing from OpenAQ's archive. |
| Feb 2023 | 1 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.
Paradise's worst months
| Month | US AQI | World rank |
|---|---|---|
| June 2023 | 6315.6 µg/m³ | 366thof 1,603 |
| May 2023 | 6013.8 µg/m³ | 175thof 1,600 |
| July 2023 | 5712.1 µg/m³ | 391stof 1,432 |
| July 2024 | 5611.7 µg/m³ | 454thof 2,566 |
| April 2023 | 519.2 µg/m³ | 563rdof 1,622 |
| August 2023 | 488.6 µg/m³ | 862ndof 1,980 |
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.
Paradise's worst days
| Day | US AQI | Episode |
|---|---|---|
| 31 Jul 2024 | 207132.0 µg/m³ | – |
| 2 Jul 2023 | 8527.1 µg/m³ | – |
| 1 Aug 2024 | 8125.0 µg/m³ | North-western United States and Canada, August 2024 |
| 24 May 2023 | 7924.3 µg/m³ | – |
| 25 May 2023 | 7924.2 µg/m³ | – |
| 11 Jul 2025 | 7924.1 µg/m³ | – |
| 28 Jul 2024 | 7924.0 µg/m³ | – |
| 14 Jun 2023 | 7722.8 µg/m³ | – |
| 17 Jun 2023 | 7622.5 µg/m³ | – |
| 23 May 2023 | 7421.6 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, Paradise, California, 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/paradise-california/history (accessed 12 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.
Paradise 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).