West Palm Beach Air Quality in April

Across 2019–2025, West Palm Beach's April air quality had a median AQI of 55 (Moderate) over 210 monitored days in the Miami-Fort Lauderdale-West Palm Beach, FL 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 73.8% of days. The cleanest April on record here was 2019 (median AQI 52, 0 days above 100) and the worst was 2024 (median 58, 1 day above 100, peak AQI 108).

55
Median AQI
Moderate
0.5%
Days above AQI 100
1 of 210 days
67
90th percentile AQI
worst 1 day in 10
108
Peak AQI
Unhealthy for Sensitive Groups
PM2.5
Main pollutant
73.8% of days
21.9%
Good days
46 of 210
  • Good: 21.9%
  • Moderate: 77.6%
  • Unhealthy for Sensitive Groups: 0.5%
  • Unhealthy or worse: 0.0%

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QUICK ANSWER

How is the air in West Palm Beach in April?

Moderate on a typical day: median AQI 55 across 2019–2025, with 0.5% of April days above AQI 100. Fine particulate matter (PM2.5) is the main driver.

  • 21.9% of April days were Good (AQI 0–50), 77.6% Moderate (51–100).
  • 1 day of 210 reached AQI 101+; the April peak was 108.
  • Best April: 2019; worst April: 2024.

Frequently asked questions

What is the air quality like in West Palm Beach in April?

Across 2019–2025, the median daily AQI in West Palm Beach in April was 55 (Moderate). 21.9% of days were Good, 77.6% 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 West Palm Beach?

A typical April day in West Palm Beach is Moderate (median AQI 55): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and fewer than 1% of April days reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.

Which pollutant causes West Palm Beach's April air quality problems?

Fine particulate matter (PM2.5) set the daily AQI on 73.8% of April days in West Palm Beach. The highest April AQI recorded in 2019–2025 was 108 (Unhealthy for Sensitive Groups), in 2024.

West Palm Beach April air quality, year by year

West Palm Beach April air quality by year (Miami-Fort Lauderdale-West Palm Beach, FL, EPA AQS daily AQI)

YearDays monitoredMedian AQIDays above 100Peak AQIMain pollutant
2019cleanest3052067PM2.5
20203058093PM2.5
20213054084PM2.5
20223054065PM2.5
20233054067PM2.5
2024worst30581108PM2.5
20253057087PM2.5

What April air means in West Palm Beach

A typical April day in West Palm Beach is Moderate (median AQI 55): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and fewer than 1% of April days reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.

April's median AQI of 55 is above West Palm Beach's whole-year median of 51, making it one of the area's dirtier periods. Nationally, the median April AQI across every EPA metro area (100,677 metro-days, 2019–2025) is 44, so West Palm Beach 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 West Palm Beach's spring season (March, April, May); the spring page pools all three months.

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

Right now in West Palm Beach

The latest EPA AirNow observation puts West Palm Beach's AQI at 28 (PM2.5). The figures above are multi-year month statistics, not today's reading.

View current West Palm Beach air quality →

Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Miami-Fort Lauderdale-West Palm Beach, FL), 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.