Macon Air Quality in Winter

Across 2019–2025, Macon's winter (December–February) air quality had a median AQI of 44 (Good) over 618 monitored days in the Macon, GA area. 0.2% of winter days (1 of 618) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 100.0% of days. The cleanest winter on record here was 2020 (median AQI 36, 0 days above 100) and the worst was 2024 (median 48, 1 day above 100, peak AQI 123).

44
Median AQI
Good
0.2%
Days above AQI 100
1 of 618 days
64
90th percentile AQI
worst 1 day in 10
123
Peak AQI
Unhealthy for Sensitive Groups
PM2.5
Main pollutant
100.0% of days
60.7%
Good days
375 of 618
  • Good: 60.7%
  • Moderate: 39.2%
  • Unhealthy for Sensitive Groups: 0.2%
  • Unhealthy or worse: 0.0%

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QUICK ANSWER

How is the air in Macon in winter?

Good on a typical day: median AQI 44 across 2019–2025, with 0.2% of winter days above AQI 100. Fine particulate matter (PM2.5) is the main driver.

  • 60.7% of winter days were Good (AQI 0–50), 39.2% Moderate (51–100).
  • 1 day of 618 reached AQI 101+; the winter peak was 123.
  • Cleanest month: January; worst month: February.

Frequently asked questions

What is the air quality like in Macon in winter?

Across 2019–2025, the median daily AQI in Macon in winter was 44 (Good). 60.7% of days were Good, 39.2% Moderate, and 0.2% reached Unhealthy for Sensitive Groups or worse, based on 618 monitored days in EPA's Air Quality System.

Is winter a good time for outdoor exercise in Macon?

A typical winter day in Macon sits in the Good range (median AQI 44), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of winter days reached AQI 101+ in 2019–2025.

Which pollutant causes Macon's winter air quality problems?

Fine particulate matter (PM2.5) set the daily AQI on 100.0% of winter days in Macon. The highest winter AQI recorded in 2019–2025 was 123 (Unhealthy for Sensitive Groups), in 2024.

Macon winter air quality, year by year

Macon winter air quality by year (Macon, GA, EPA AQS daily AQI)

YearDays monitoredMedian AQIDays above 100Peak AQIMain pollutant
20199039068PM2.5
2020cleanest9136064PM2.5
20219044080PM2.5
20229045085PM2.5
20237642085PM2.5
2024worst91481123PM2.5
20259055096PM2.5

What winter air means in Macon

A typical winter day in Macon sits in the Good range (median AQI 44), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of winter days reached AQI 101+ in 2019–2025.

Winter's median AQI of 44 is below Macon's whole-year median of 48, making it one of the area's cleaner periods. Nationally, the median Winter AQI across every EPA metro area (278,620 metro-days, 2019–2025) is 40, so Macon runs above the national Winter norm; 0.2% of its Winter days topped AQI 100 versus 0.6% nationally (about the same).

Within the season, January is the cleanest month (median AQI 41, 0.0% of days above 100) and February the worst (median 46, 0.5% above 100).

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

Right now in Macon

The latest EPA AirNow observation puts Macon's AQI at 55 (PM2.5). The figures above are multi-year season statistics, not today's reading.

View current Macon air quality →

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