SmogRank / United States / New Mexico / Sunland Park
Sunland Park, month by month
Sunland Park has a measured daily mean on 1,140 days since 1 January 2023. Its worst month was March 2025, at 97 US AQI (33.6 µg/m³), 237th of 2,862 cities on that month's world ranking. Its cleanest was March 2023, at 19 US AQI (3.5 µg/m³). 2025 averaged 57 US AQI (12.5 µg/m³), against 32 US AQI (5.8 µg/m³) in 2023.
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
8 months
| Month | Why |
|---|---|
| Jun 2024 | 19 of 30 days measured; a month needs 21. The others: 11 with under 18 hours of readings or readings that failed our checks. |
| May 2024 | No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks. |
| Apr 2024 | No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks. |
| Mar 2024 | 1 of 31 days measured; a month needs 22. The others: 30 with under 18 hours of readings or readings that failed our checks. |
| Feb 2024 | 1 of 29 days measured; a month needs 21. The others: 28 with under 18 hours of readings or readings that failed our checks. |
| Jan 2024 | No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks. |
| Dec 2023 | No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks. |
| Nov 2023 | No day measured. The others: 30 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.
Sunland Park's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| March 2025 | 9733.6 µg/m³ | 237thof 2,862 | South-western United States and Mexico, March 2025 |
| April 2025 | 8728.3 µg/m³ | 189thof 2,951 | South-western United States and Mexico, April 2025 |
| May 2025 | 6717.8 µg/m³ | 323rdof 2,826 | South-western United States and Mexico, May 2025 |
| October 2024 | 5913.3 µg/m³ | 323rdof 2,020 | – |
| February 2025 | 5712.3 µg/m³ | 997thof 2,633 | – |
| June 2025 | 5310.4 µg/m³ | 1,179thof 2,508 | – |
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.
Sunland Park's worst days
| Day | US AQI | Episode |
|---|---|---|
| 18 Mar 2025 | 279204.0 µg/m³ | South-western United States and Mexico, March 2025 |
| 1 Apr 2025 | 239164.0 µg/m³ | South-western United States and Mexico, April 2025 |
| 6 Mar 2025 | 225149.5 µg/m³ | – |
| 27 Apr 2025 | 215140.0 µg/m³ | – |
| 18 Apr 2025 | 206131.0 µg/m³ | – |
| 17 Apr 2025 | 193115.5 µg/m³ | – |
| 13 Mar 2025 | 192114.0 µg/m³ | – |
| 3 Mar 2025 | 18096.6 µg/m³ | – |
| 14 May 2025 | 17589.5 µg/m³ | South-western United States and Mexico, May 2025 |
| 14 Mar 2025 | 16676.9 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, Sunland Park, 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/sunland-park/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.
Sunland Park 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).