Raleigh Air Quality in June

Across 2019–2025, Raleigh's June air quality had a median AQI of 54 (Moderate) over 210 monitored days in the Raleigh, NC area. 2.9% of June days (6 of 210) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 62.4% of days. The cleanest June on record here was 2021 (median AQI 45, 0 days above 100) and the worst was 2023 (median 68, 4 days above 100, peak AQI 130).

54
Median AQI
Moderate
2.9%
Days above AQI 100
6 of 210 days
80
90th percentile AQI
worst 1 day in 10
140
Peak AQI
Unhealthy for Sensitive Groups
PM2.5
Main pollutant
62.4% of days
39.5%
Good days
83 of 210
  • Good: 39.5%
  • Moderate: 57.6%
  • Unhealthy for Sensitive Groups: 2.9%
  • Unhealthy or worse: 0.0%

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QUICK ANSWER

How is the air in Raleigh in June?

Moderate on a typical day: median AQI 54 across 2019–2025, with 2.9% of June days above AQI 100. Fine particulate matter (PM2.5) is the main driver.

  • 39.5% of June days were Good (AQI 0–50), 57.6% Moderate (51–100).
  • 6 days of 210 reached AQI 101+; the June peak was 140.
  • Best June: 2021; worst June: 2023.

Frequently asked questions

What is the air quality like in Raleigh in June?

Across 2019–2025, the median daily AQI in Raleigh in June was 54 (Moderate). 39.5% of days were Good, 57.6% Moderate, and 2.9% reached Unhealthy for Sensitive Groups or worse, based on 210 monitored days in EPA's Air Quality System.

Is June a good time for outdoor exercise in Raleigh?

A typical June day in Raleigh is Moderate (median AQI 54): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 34 of June days (2.9%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.

Which pollutant causes Raleigh's June air quality problems?

Fine particulate matter (PM2.5) set the daily AQI on 62.4% of June days in Raleigh. The highest June AQI recorded in 2019–2025 was 140 (Unhealthy for Sensitive Groups), in 2023.

Raleigh June air quality, year by year

Raleigh June air quality by year (Raleigh, NC, EPA AQS daily AQI)

YearDays monitoredMedian AQIDays above 100Peak AQIMain pollutant
20193056093PM2.5
202030581101PM2.5
2021cleanest3045077PM2.5
202230541140O3
2023worst30684130PM2.5
20243054084O3
20253053069PM2.5

What June air means in Raleigh

A typical June day in Raleigh is Moderate (median AQI 54): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 34 of June days (2.9%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.

June's median AQI of 54 is above Raleigh's whole-year median of 48, making it one of the area's dirtier periods. Nationally, the median June AQI across every EPA metro area (100,635 metro-days, 2019–2025) is 46, so Raleigh runs above the national June norm; 2.9% of its June days topped AQI 100 versus 3.7% nationally (about the same).

June is part of Raleigh's summer season (June, July, August); the summer page pools all three months.

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

Right now in Raleigh

The latest EPA AirNow observation puts Raleigh's AQI at 47 (PM2.5). The figures above are multi-year month statistics, not today's reading.

View current Raleigh air quality →

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