Harrisburg Air Quality in 2022

In 2022, Harrisburg's air quality (Harrisburg-Carlisle, PA area) had a median daily AQI of 50 (Good) across 365 monitored days. 3 days (0.8%) reached Unhealthy for Sensitive Groups or worse, 185 were Good, and the year's peak AQI was 127 (Unhealthy for Sensitive Groups). Fine particulate matter (PM2.5) set the daily AQI on 266 of those days. The cleanest month of 2022 was September (median AQI 44, 0 days above 100) and the worst was June (median 55, 1 day above 100, peak 112).

50
Median AQI
Good
3
Days above AQI 100
0.8% of 365 days
67
90th percentile AQI
worst 1 day in 10
127
Peak AQI
Unhealthy for Sensitive Groups
PM2.5
Main pollutant
266 of 365 days
185
Good days
50.7% of days
  • Good: 50.7%
  • Moderate: 48.5%
  • Unhealthy for Sensitive Groups: 0.8%
  • Unhealthy or worse: 0.0%

Extra Protection for Harrisburg Homes

Air quality in Harrisburg is moderate (AQI 52), 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.

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QUICK ANSWER

How was Harrisburg's air quality in 2022?

Good on a typical day: median AQI 50, with 3 days above AQI 100 out of 365 monitored — the 5th cleanest of 7 years on record for the area.

  • Peak AQI in 2022: 127 (Unhealthy for Sensitive Groups).
  • Fine particulate matter (PM2.5) was the main pollutant on 266 days.
  • Cleanest month: September; worst: June.

Frequently asked questions

What was the average AQI in Harrisburg in 2022?

EPA's Air Quality System puts Harrisburg's (Harrisburg-Carlisle, PA) median daily AQI for 2022 at 50, which is Good. 3 days were Unhealthy for Sensitive Groups or worse and the year's highest AQI was 127.

Which month had the worst air quality in Harrisburg in 2022?

The cleanest month of 2022 was September (median AQI 44, 0 days above 100) and the worst was June (median 55, 1 day above 100, peak 112).

Was 2022 a good or bad year for Harrisburg's air?

Among the 7 years EPA has published for the area (2019–2025), 2022 ranks 5th cleanest by days above AQI 100. 2022's median of 50 is in line with the area's typical annual median of 50.

Harrisburg month by month in 2022

Harrisburg air quality month by month, 2022 (Harrisburg-Carlisle, PA, EPA AQS daily AQI)

MonthDays monitoredMedian AQIDays above 100Peak AQIMain pollutant
January31551101PM2.5
February2854081PM2.5
March3149070PM2.5
April3045064O3
May3147074PM2.5
Juneworst30551112O3
July3153080PM2.5
August3146067PM2.5
Septembercleanest3044061PM2.5
October3146068PM2.5
November3052086PM2.5
December31521127PM2.5

How 2022 compares

Among the 7 years EPA has published for the area (2019–2025), 2022 ranks 5th cleanest by days above AQI 100.

2022's median of 50 is in line with the area's typical annual median of 50.

Activity-specific thresholds: running, cycling, kids' sports.

Right now in Harrisburg

The latest EPA AirNow observation puts Harrisburg's AQI at 52 (PM2.5). The figures above are multi-year annual statistics, not today's reading.

View current Harrisburg air quality →

Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Harrisburg-Carlisle, PA), 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.