Scranton Air Quality in April

Across 2019–2025, Scranton's April air quality had a median AQI of 43 (Good) over 210 monitored days in the Scranton--Wilkes-Barre--Hazleton, PA area. 1.0% of April days (2 of 210) reached Unhealthy for Sensitive Groups or worse, and ground-level ozone set the daily AQI on 81.9% of days. The cleanest April on record here was 2025 (median AQI 42, 0 days above 100) and the worst was 2023 (median 52, 2 days above 100, peak AQI 133).

43
Median AQI
Good
1.0%
Days above AQI 100
2 of 210 days
55
90th percentile AQI
worst 1 day in 10
133
Peak AQI
Unhealthy for Sensitive Groups
O3
Main pollutant
81.9% of days
80.0%
Good days
168 of 210
  • Good: 80.0%
  • Moderate: 19.0%
  • Unhealthy for Sensitive Groups: 1.0%
  • Unhealthy or worse: 0.0%

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QUICK ANSWER

How is the air in Scranton in April?

Good on a typical day: median AQI 43 across 2019–2025, with 1.0% of April days above AQI 100. Ground-level ozone is the main driver.

  • 80.0% of April days were Good (AQI 0–50), 19.0% Moderate (51–100).
  • 2 days of 210 reached AQI 101+; the April peak was 133.
  • Best April: 2025; worst April: 2023.

Frequently asked questions

What is the air quality like in Scranton in April?

Across 2019–2025, the median daily AQI in Scranton in April was 43 (Good). 80.0% of days were Good, 19.0% Moderate, and 1.0% reached Unhealthy for Sensitive Groups or worse, based on 210 monitored days in EPA's Air Quality System.

Is April a good time for outdoor exercise in Scranton?

A typical April day in Scranton sits in the Good range (median AQI 43), so running, cycling and children's outdoor play are fine for everyone on most days; about 1 day in 100 of April days (1.0%) reached AQI 101+ in 2019–2025.

Which pollutant causes Scranton's April air quality problems?

Ground-level ozone set the daily AQI on 81.9% of April days in Scranton. The highest April AQI recorded in 2019–2025 was 133 (Unhealthy for Sensitive Groups), in 2023.

Scranton April air quality, year by year

Scranton April air quality by year (Scranton--Wilkes-Barre--Hazleton, PA, EPA AQS daily AQI)

YearDays monitoredMedian AQIDays above 100Peak AQIMain pollutant
20193043061O3
20203043054O3
20213044071O3
20223043061O3
2023worst30522133O3
20243043058O3
2025cleanest3042084O3

What April air means in Scranton

A typical April day in Scranton sits in the Good range (median AQI 43), so running, cycling and children's outdoor play are fine for everyone on most days; about 1 day in 100 of April days (1.0%) reached AQI 101+ in 2019–2025.

April's median AQI of 43 is in line with Scranton's whole-year median of 41, so this period is neither a clean nor a dirty stretch for the area. Nationally, the median April AQI across every EPA metro area (100,677 metro-days, 2019–2025) is 44, so Scranton runs in line with the national April norm; 1.0% of its April days topped AQI 100 versus 0.7% nationally (about the same).

April is part of Scranton's spring season (March, April, May); the spring page pools all three months.

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

Right now in Scranton

The latest EPA AirNow observation puts Scranton's AQI at 42 (PM2.5). The figures above are multi-year month statistics, not today's reading.

View current Scranton air quality →

Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Scranton--Wilkes-Barre--Hazleton, 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.