Air Quality in Palmdale, California — Live
Live readings from PurpleAir sensors across Palmdale — with free alerts the moment the air turns.
AQI 9 from 4 PurpleAir sensors · Trending up · data from PurpleAir
As of , the air quality in Palmdale, California is AQI 9 — Good and rising — with PM2.5 at 1.7 µg/m³, the median of 4 live PurpleAir sensors reading 7 to 56. Canairy's verdict: Breathe easy.
For scale, that PM2.5 reading is below the World Health Organization's 24-hour guideline of 15 µg/m³. The WHO figure is a daily average and this is a live reading, so read it as a sense of magnitude rather than a formal exceedance — a brief spike and a bad day are not the same thing. More on the WHO guidelines
Pollen today in Palmdale: weeds pollen is the strongest of the three at a low level, from Google's pollen forecast. Canairy shows the tree, grass and weed forecast beside the air reading on every plan, including the free one.
Free to download · Live data from PurpleAir & public monitors
Live PurpleAir sensor map for Palmdale and Lancaster, Littlerock, Lake Los Angeles, Acton. Every dot is a real sensor, color-coded by current air quality.
Sensor by sensor in Palmdale
The sensors Canairy reads in Palmdale are 49 AQI points apart right now, from Good to Moderate, which is the whole reason one city-wide number can mislead you: the median describes air you may not be standing in.
| From city center | AQI | Category |
|---|---|---|
| 5.6 mi N | 12 | Good |
| 7.5 mi NNE | 56 | Moderate |
| 8.1 mi NW | 7 | Good |
| 8.8 mi WNW | 9 | Good |
Palmdale sits at the southern edge of the Antelope Valley, about 2,660 feet up and pressed right against the north face of the San Gabriel Mountains. That position decides a lot about its air. The 14 Freeway enters the valley here, carrying the commute to Los Angeles in both directions; the Antelope Valley Air Quality Management District counts more than 100,000 vehicles a day crossing the valley's southern boundary on it, and lists that traffic alongside the rock, gravel and sand quarries along the south side among the four main particulate sources in the valley. The mountains that make Palmdale's skyline are also where the region's big fires burn, and smoke coming off them arrives here before it reaches anywhere else in the valley.
What Canairy does for Palmdale
A clear verdict
Not just a number — a plain-English call for Palmdale: open the windows, or keep them shut.
Smoke alerts
A push or text the moment the air crosses your threshold — and again when it clears.
A heads-up before it's bad
Trend alerts catch the air turning, so you can close up the house before the smoke settles in.
Every place you care about
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The 14 brings the commute — and the basin's air with it
The Antelope Valley got its own air district in 1997, when the state legislature split it off from the South Coast AQMD. The county line did not change the air. The district still describes its problem as a combination of a sunny climate, pollution-trapping mountains, transported pollution from the Los Angeles basin and a growing population, and says violations of the federal ozone standard happen several times each summer. Ozone is a summer afternoon pollutant: it is cooked out of traffic and industrial exhaust by sunlight and heat, which the high desert has in abundance.
The traffic figure is the district's own. Caltrans data it cited in 2018 put the peak daily vehicle trip rate along the valley's southern boundary — effectively the 14 through Palmdale, the primary route to the Los Angeles area — above 110,000, a number that had climbed over the previous decade. On the regulatory side, the EPA classifies the West Mojave Desert, which covers the Antelope Valley and the Victor Valley across the San Bernardino County line, as a Severe-15 nonattainment area for the 2008 eight-hour ozone standard, with an attainment deadline of 20 July 2027.
Palmdale is the closest city to the fires in the Angeles
The Bobcat Fire started on 6 September 2020 when a tree touched a Southern California Edison power line in the Angeles National Forest. It burned for 83 days, covered 115,997 acres and destroyed 169 structures. By 22 September it had run north over Pleasant View Ridge into the Antelope Valley foothills, with mandatory evacuations at Pearblossom, Juniper Hills, Valyermo and Llano, and fire officials reporting spot fires landing up to a mile ahead of the front. The Red Cross set up its evacuation point at Palmdale High School, and large animals went to the Antelope Valley Fairgrounds in Lancaster. Air quality across the Antelope Valley was unhealthy for sensitive groups.
That was not a one-off. A month earlier the Lake Fire burned 31,089 acres near Lake Hughes on the valley's western edge, forcing about 100 homes to evacuate. Because Palmdale sits directly below the mountain front, a fire on the forest's north slope can put smoke over the south end of the city while the north end is still clear — and unlike wind-blown dust, wildfire smoke tends to settle in and stay overnight.
Dust here is old news, and it hasn't gone away
A 1963 Department of Defense study cited by the air district found that records kept in Palmdale between 1948 and 1953 showed an average of six dust storms a year. A 1970 US Department of Agriculture soil survey put it more bluntly: soil blowing is a hazard in all parts of the Antelope Valley area. The district says dust blown from the east across farmland can be thick enough to cause visibility problems on parts of Air Force Plant 42 — the airfield where Northrop Grumman and Lockheed Martin, Palmdale's two largest private employers, build aircraft.
The rule meant to control it, AVAQMD Rule 403, dates to 1976 and was last amended in April 2010. It bars visible dust from crossing a property line, caps dust emissions at 20 percent opacity, and defines high wind conditions as gusts over 25 miles an hour. What the valley does not have is dense official monitoring: the district's only ambient PM10 and PM2.5 sampler is in Lancaster, roughly six miles north of downtown Palmdale, and the district has acknowledged it sits inside an urban core that partly shields it from the dust happening in the open valley.
Palmdale air quality FAQ
What is the air quality in Palmdale right now?
As of September 10, 2026 at 5:10 AM PDT, the air quality in Palmdale, California is AQI 9 — Good — with PM2.5 at 1.7 µg/m³, the median of 4 live PurpleAir sensors. Open the windows. Great for outdoor activity.
Why is there smoke in Palmdale today?
Usually because something is burning in the Angeles National Forest or the mountains west of the valley, and Palmdale sits closest to both. The clearest recent example is the Bobcat Fire in September 2020, which burned 115,997 acres and pushed north into the foothills at Juniper Hills, Pearblossom, Valyermo and Llano, with Palmdale High School serving as the Red Cross evacuation point. The Lake Fire near Lake Hughes burned 31,089 acres the month before. If there is no fire in the news, a calm winter night can also mean wood smoke or permitted open burning — the AVAQMD publishes a daily burn forecast at 661-723-8070, option 1, under Rule 444.
Is Palmdale's air different from Lancaster's?
In the ways a local would notice, yes. Palmdale sits about 300 feet higher and right against the San Gabriel wall, so smoke from mountain fires reaches it first, and the 14 Freeway funnels the valley's commuter and truck traffic in past its southern edge. But the air district is careful to say the valley's winds shift so fast and so unpredictably that dust raised in one part of it lands in another, which is why it treats the Antelope Valley as a single community rather than a set of separate neighbourhoods. On a dusty day, Palmdale and Lancaster often share the same problem.
Should my kid's school keep them inside on bad air days?
It is a fair question here. Childhood asthma across Antelope Valley zip codes runs about 15.4 percent, above the Los Angeles County average of 13.1 percent, and Los Angeles County public health has reported that 72 percent of children with asthma living in the Antelope Valley regularly miss school. A practical approach is to pick a threshold — many families use AQI 100, the point where the air becomes Unhealthy for Sensitive Groups — and set an alert on the sensor closest to the school rather than checking a citywide number after the fact.
What the AQI numbers mean
| AQI | Category | What it means for you |
|---|---|---|
| 0–50 | Good | Open the windows. Great for outdoor activity. |
| 51–100 | Moderate | Sensitive groups may want to take it slower outside. |
| 101–150 | Unhealthy for Sensitive Groups | Kids, elderly, and respiratory conditions stay closer to home. |
| 151–200 | Unhealthy | Skip outdoor exercise. Close windows. |
| 201–300 | Very Unhealthy | Limit time outside. N95 if you must go. |
| 301+ | Hazardous | Health emergency. Stay inside, run filtration if you have it. |
Canairy lets you tighten these bands if you’re more sensitive than the EPA default, so an alert can fire before the official category changes. How to read the Air Quality Index
Where these readings come from
The AQI at the top of this page is the median of the 4 curated PurpleAir sensors Canairy tracks in and around Palmdale, with outliers set aside so that one sensor brought indoors — or parked beside a barbecue — cannot set the number for a whole city. Every sensor behind it is listed above with its distance and bearing from the city center. There is no black box here.
In the app, a place you save resolves the same way first. When no neighborhood sensor is reporting it falls back to the nearest EPA AirNow monitor, and anything modeled rather than measured is labelled a regional estimate rather than passed off as a sensor reading. How low-cost sensors compare to regulatory monitors
About Canairy
Canairy is free to download. The free plan covers one saved place with live readings, a plain-English verdict, and push alerts when the air crosses a threshold you choose. Paid plans add more places, faster refreshes, and SMS alerts. It is built by two parents in Sonoma County, California, who got tired of guessing whether it was safe to send the kids outside. Why we built it
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Air quality near Palmdale
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