Atlantic City Air Quality in 2020
In 2020, Atlantic City's air quality (Atlantic City-Hammonton, NJ area) had a median daily AQI of 37 (Good) across 359 monitored days. 0 days (0.0%) reached Unhealthy for Sensitive Groups or worse, 286 were Good, and the year's peak AQI was 90 (Moderate). Fine particulate matter (PM2.5) set the daily AQI on 189 of those days. The cleanest month of 2020 was January (median AQI 32, 0 days above 100) and the worst was November (median 49, 0 days above 100, peak 74).
- Good: 79.7%
- Moderate: 20.3%
- Unhealthy for Sensitive Groups: 0.0%
- Unhealthy or worse: 0.0%
Extra Protection for Atlantic City Homes
Air quality in Atlantic City is moderate (AQI 51), with fine particles (PM2.5) the main concern. A True-HEPA purifier gives sensitive groups — kids, seniors and anyone with asthma or allergies — cleaner air indoors on days like today.
Recommended: Coway AP-1512HH Mighty — True HEPA + carbon · CADR ~246 CFM · rooms up to 361 sq ft
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How was Atlantic City's air quality in 2020?
Good on a typical day: median AQI 37, with 0 days above AQI 100 out of 359 monitored — the 2nd cleanest of 7 years on record for the area.
- ✓Peak AQI in 2020: 90 (Moderate).
- ✓Fine particulate matter (PM2.5) was the main pollutant on 189 days.
- ✓Cleanest month: January; worst: November.
Frequently asked questions
What was the average AQI in Atlantic City in 2020?▾
EPA's Air Quality System puts Atlantic City's (Atlantic City-Hammonton, NJ) median daily AQI for 2020 at 37, which is Good. 0 days were Unhealthy for Sensitive Groups or worse and the year's highest AQI was 90.
Which month had the worst air quality in Atlantic City in 2020?▾
The cleanest month of 2020 was January (median AQI 32, 0 days above 100) and the worst was November (median 49, 0 days above 100, peak 74).
Was 2020 a good or bad year for Atlantic City's air?▾
Among the 7 years EPA has published for the area (2019–2025), 2020 ranks 2nd cleanest by days above AQI 100. 2020's median of 37 is in line with the area's typical annual median of 37.
Atlantic City month by month in 2020
Atlantic City air quality month by month, 2020 (Atlantic City-Hammonton, NJ, EPA AQS daily AQI)
| Month | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| Januarycleanest | 31 | 32 | 0 | 55 | O3 |
| February | 29 | 35 | 0 | 58 | PM2.5 |
| March | 31 | 36 | 0 | 55 | O3 |
| April | 30 | 39 | 0 | 52 | O3 |
| May | 30 | 37 | 0 | 52 | O3 |
| June | 30 | 44 | 0 | 90 | O3 |
| July | 29 | 44 | 0 | 63 | PM2.5 |
| August | 28 | 39 | 0 | 58 | PM2.5 |
| September | 29 | 33 | 0 | 57 | PM2.5 |
| October | 31 | 34 | 0 | 53 | PM2.5 |
| Novemberworst | 30 | 49 | 0 | 74 | PM2.5 |
| December | 31 | 45 | 0 | 77 | PM2.5 |
How 2020 compares
Among the 7 years EPA has published for the area (2019–2025), 2020 ranks 2nd cleanest by days above AQI 100.
2020's median of 37 is in line with the area's typical annual median of 37.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Atlantic City
The latest EPA AirNow observation puts Atlantic City's AQI at 51 (PM2.5). The figures above are multi-year annual statistics, not today's reading.
View current Atlantic City air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Atlantic City-Hammonton, NJ), 2019–2025. Daily AQI per CBSA is the highest AQI reported by any monitor in the area that day; the defining parameter is the pollutant that set it. Month and season statistics pool every such day in the period across all years listed. Retrieved 2026-09-09.