Phoenix Median AQI 2024: Historical Air Quality Data
Explore 2024 air quality data for Phoenix, including the median AQI, seasonal patterns, pollution trends, and how air quality changed over the year.
Current Air Quality
Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.
Extra Protection for Phoenix Homes
Air quality in Phoenix is moderate (AQI 63), 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.
Recommended: Levoit Core 400S — True HEPA · CADR ~260 CFM · rooms up to 403 sq ft
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Phoenix Air Quality in 2024
Historical air quality data for Phoenix in 2024 shows how pollution levels have changed over time. Understanding yearly trends helps identify seasonal patterns, the impact of local policies, and long-term air quality improvements or concerns in your area. Check current conditions below for today's AQI reading.
View Current Phoenix Air Quality →Phoenix 2024 Air Quality Snapshot
Across 2024, Phoenix's median AQI was around 67 (Moderate), based on current readings and seasonal patterns for the Phoenix-Mesa-Glendale reporting area. That means a typical day fell near AQI 67, with the dominant pollutant being fine particulate matter (PM2.5), which is common for the Southwest region.
How Phoenix Air Quality Changed by Season in 2024
Spring (Mar–May): Usually Phoenix's cleanest stretch, with AQI near 49. Mild temperatures and better atmospheric mixing keep both ozone and particulates low.
Summer (Jun–Aug): AQI climbs toward 75 as heat and sunlight drive higher ozone and, in the West, wildfire-smoke episodes. Afternoons are the worst time to be outside.
Fall (Sep–Nov): Air quality generally improves as temperatures drop, though early fall can still carry wildfire smoke in the Southwest region.
Winter (Dec–Feb): AQI near 87. Cold-air temperature inversions can trap PM2.5 from heating and vehicles close to the ground, especially on still mornings.
Is It Safe to Exercise Outside in Phoenix?
With Phoenix's AQI at 63 (Moderate), outdoor exercise is generally safe for most people. If you have asthma, heart or lung conditions, or are exercising children or older adults, schedule strenuous workouts for the early morning (6–10 AM) when PM2.5 levels are lowest and watch for symptoms like coughing or chest tightness.
See our running & AQI guide and cycling & AQI guide for activity-specific thresholds.
What's Causing Phoenix's Air Pollution?
In Phoenix, the leading pollutant is fine particulate matter (PM2.5). As part of the Southwest region, the main drivers of air pollution here are:
- •Windblown dust and periodic dust storms (haboobs)
- •Vehicle emissions intensified by extreme summer heat
- •Rapid construction from population growth
- •Ground-level ozone formed in strong desert sunlight
Dig deeper: Phoenix PM2.5 levels · Phoenix ozone levels
Air Purifier & Monitor Buying Guides
Not sure which device fits your needs? Our hands-on guides break down the best picks by use case.
PM2.5 Levels
Fine particulate matter data →
Ozone Levels
Ground-level ozone data →
Seasonal Guides
Air quality by season →
Health Effects
Learn about air pollution impacts →
Frequently Asked Questions About Phoenix Air Quality
What is the current air quality in Phoenix?
The current Air Quality Index (AQI) in Phoenix, AZ is 63, which is considered moderate.
Is it safe to exercise outdoors in Phoenix?
Generally yes. With an AQI of 63, outdoor exercise is acceptable for most people. Sensitive individuals should monitor symptoms.
When is the best time of year to visit Phoenix for good air quality?
Spring and early fall typically offer the best air quality in Phoenix. Summer months may have elevated ozone levels, while winter can see higher PM2.5 from temperature inversions.
What causes air pollution in Phoenix?
Air pollution in Phoenix can come from vehicle emissions, industrial activity, construction, wildfires, and weather patterns. Local geography and seasonal factors also play a significant role.
Explore More Air Quality Data
Extra Protection for Phoenix Homes
Air quality in Phoenix is moderate (AQI 63), 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.
Compare top-rated True-HEPA purifiers:
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