Air Quality in Fairbanks, Alaska — Live
Live readings from PurpleAir sensors across Fairbanks and North Pole — with free alerts when winter inversions trap wood smoke over the valley.
AQI 20 from 5 PurpleAir sensors · Trending down · data from PurpleAir
As of , the air quality in Fairbanks, Alaska is AQI 20 — Good and falling — with PM2.5 at 3.6 µg/m³, the median of 5 live PurpleAir sensors reading 13 to 33. 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 is quiet in Fairbanks right now. Google's pollen forecast covers this area and shows no tree, grass or weed activity today — which is a real answer, not missing data.
Free to download · Live data from PurpleAir & public monitors
Live PurpleAir sensor map for Fairbanks and North Pole, Ester, Fox, Two Rivers. Every dot is a real sensor, color-coded by current air quality.
Sensor by sensor in Fairbanks
The sensors Canairy reads in Fairbanks agree right now — all 5 sit in the Good band, a 20-point spread — so the city-wide number is a fair description of the whole area today.
| From city center | AQI | Category |
|---|---|---|
| City center | 33 | Good |
| 4.2 mi NW | 20 | Good |
| 4.4 mi NW | 13 | Good |
| 4.8 mi W | 33 | Good |
| 5.6 mi N | 18 | Good |
Fairbanks air is easy to underestimate: spring, summer, and much of fall the sky over the Tanana Valley is clean, and the occasional smoke usually drifts in from wildfires burning elsewhere in the Interior. Winter is a different story. From roughly October through March, Fairbanks and neighboring North Pole sit inside some of the strongest temperature inversions in the country, and wood smoke from home heating gets trapped low over the valley for days at a stretch — the reason part of the Fairbanks North Star Borough carries an EPA 'Serious' classification for fine particle pollution.
What Canairy does for Fairbanks
A clear verdict
Not just a number — a plain-English call for Fairbanks: open the windows, or keep them shut.
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Winter inversions turn the valley into a lid
Fairbanks sits on the flood plain of the Tanana River, with low hills pressing in from the north and open, flat country running south toward the Alaska Range. On clear, windless winter nights, cold air pools in that low ground and gets capped by warmer air above it — an inversion that in the Tanana Valley can run as steep as 16°F for every 100 feet of altitude, enough to leave the valley floor 40 degrees or more colder than the hilltops just a couple thousand feet up.
That same still air is why Fairbanks gets ice fog — tiny suspended ice crystals that form once temperatures drop below about minus 35°F, fed by open water on the Chena River, power-plant steam, and exhaust from cars and furnaces. Ice fog is really just the visible half of the story; the same trapped air is also holding the fine particle pollution that doesn't show up to the eye.
Wood smoke, not wildfire, is why the EPA calls this 'Serious'
The EPA first designated part of the Fairbanks North Star Borough as nonattainment for 24-hour PM2.5 in 2009, then reclassified it from Moderate to Serious in 2017 after readings kept coming in over the federal limit. State monitoring has attributed 58 to 85 percent of the borough's wintertime PM2.5 to wood burning for home heat, and 24-hour readings have historically spiked as high as 135 micrograms per cubic meter — nearly four times the 35 microgram health standard.
The borough's most recent design value, covering 2021 through 2023, runs around 56 micrograms per cubic meter — real progress from the worst years, but still above the federal line. In October 2025 the EPA finalized approval of Alaska's plan to bring the borough into attainment by the end of 2027, but until then, a cold, calm week in January can still turn the air seriously unhealthy.
North Pole usually has it worse, and the borough is paying people to switch heat sources
North Pole sits lower and flatter than Fairbanks within the same valley, so on the coldest, stillest nights it often traps even more particulate than Fairbanks itself — state and borough alerts frequently list North Pole at a higher curtailment stage than Fairbanks on the very same night. Both communities lean heavily on wood and oil stoves for heat, and it's that combination of biomass burning and denser, colder pooled air that makes North Pole the sharper edge of the borough's air-quality problem.
The Fairbanks North Star Borough now runs a Wood Stove Change-Out Program that pays homeowners $4,000 to $14,000 to swap an old stove for a cleaner-burning appliance, and as of December 31, 2024, homes in the nonattainment area were required to remove or replace outdated wood, pellet, coal, and hydronic heating devices entirely. On the worst nights, the state's curtailment program restricts solid-fuel burning to homes that have no other adequate source of heat.
Fairbanks air quality FAQ
What is the air quality in Fairbanks right now?
As of September 14, 2026 at 12:30 PM PDT, the air quality in Fairbanks, Alaska is AQI 20 — Good — with PM2.5 at 3.6 µg/m³, the median of 5 live PurpleAir sensors. Open the windows. Great for outdoor activity.
Why does Fairbanks' air get so bad in winter?
From roughly October through March, strong temperature inversions trap cold, still air low over the Tanana Valley, and smoke from wood stoves used for home heating can't escape it. State monitoring attributes 58 to 85 percent of wintertime PM2.5 in the borough to wood burning, which is why part of the Fairbanks North Star Borough is an EPA 'Serious' nonattainment area for fine particle pollution.
Why is North Pole's air often worse than Fairbanks itself?
North Pole sits lower and flatter within the same valley, so on calm winter nights colder, denser air pools there even more thoroughly than in Fairbanks. Air quality alerts and curtailment stages issued by the state and borough frequently list North Pole a notch worse than Fairbanks on the very same night.
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 5 curated PurpleAir sensors Canairy tracks in and around Fairbanks, 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 Fairbanks
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