Little Rock Air Quality in April

Across 2019–2025, Little Rock's April air quality had a median AQI of 50 (Good) over 210 monitored days in the Little Rock-North Little Rock-Conway, AR area. 0.5% of April days (1 of 210) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 61.4% of days. The cleanest April on record here was 2019 (median AQI 46, 0 days above 100) and the worst was 2025 (median 53, 1 day above 100, peak AQI 105).

50
Median AQI
Good
0.5%
Days above AQI 100
1 of 210 days
61
90th percentile AQI
worst 1 day in 10
105
Peak AQI
Unhealthy for Sensitive Groups
PM2.5
Main pollutant
61.4% of days
52.4%
Good days
110 of 210
  • Good: 52.4%
  • Moderate: 47.1%
  • Unhealthy for Sensitive Groups: 0.5%
  • Unhealthy or worse: 0.0%

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QUICK ANSWER

How is the air in Little Rock in April?

Good on a typical day: median AQI 50 across 2019–2025, with 0.5% of April days above AQI 100. Fine particulate matter (PM2.5) is the main driver.

  • 52.4% of April days were Good (AQI 0–50), 47.1% Moderate (51–100).
  • 1 day of 210 reached AQI 101+; the April peak was 105.
  • Best April: 2019; worst April: 2025.

Frequently asked questions

What is the air quality like in Little Rock in April?

Across 2019–2025, the median daily AQI in Little Rock in April was 50 (Good). 52.4% of days were Good, 47.1% Moderate, and 0.5% 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 Little Rock?

A typical April day in Little Rock sits in the Good range (median AQI 50), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of April days reached AQI 101+ in 2019–2025.

Which pollutant causes Little Rock's April air quality problems?

Fine particulate matter (PM2.5) set the daily AQI on 61.4% of April days in Little Rock. The highest April AQI recorded in 2019–2025 was 105 (Unhealthy for Sensitive Groups), in 2025.

Little Rock April air quality, year by year

Little Rock April air quality by year (Little Rock-North Little Rock-Conway, AR, EPA AQS daily AQI)

YearDays monitoredMedian AQIDays above 100Peak AQIMain pollutant
2019cleanest3046057O3
20203047063PM2.5
20213055067PM2.5
20223052064PM2.5
20233046068PM2.5
20243051072PM2.5
2025worst30531105PM2.5

What April air means in Little Rock

A typical April day in Little Rock sits in the Good range (median AQI 50), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of April days reached AQI 101+ in 2019–2025.

April's median AQI of 50 is below Little Rock's whole-year median of 54, making it one of the area's cleaner periods. Nationally, the median April AQI across every EPA metro area (100,677 metro-days, 2019–2025) is 44, so Little Rock runs above the national April norm; 0.5% of its April days topped AQI 100 versus 0.7% nationally (about the same).

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

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

Right now in Little Rock

The latest EPA AirNow observation puts Little Rock's AQI at 96 (PM2.5). The figures above are multi-year month statistics, not today's reading.

View current Little Rock air quality →

Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Little Rock-North Little Rock-Conway, AR), 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.