Tulsa Air Quality in December

Across 2019–2025, Tulsa's December air quality had a median AQI of 48 (Good) over 217 monitored days in the Tulsa, OK area. 0.0% of December days (0 of 217) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 77.0% of days. The cleanest December on record here was 2023 (median AQI 38, 0 days above 100) and the worst was 2021 (median 55, 0 days above 100, peak AQI 96).

48
Median AQI
Good
0.0%
Days above AQI 100
0 of 217 days
62
90th percentile AQI
worst 1 day in 10
96
Peak AQI
Moderate
PM2.5
Main pollutant
77.0% of days
53.9%
Good days
117 of 217
  • Good: 53.9%
  • Moderate: 46.1%
  • Unhealthy for Sensitive Groups: 0.0%
  • Unhealthy or worse: 0.0%

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QUICK ANSWER

How is the air in Tulsa in December?

Good on a typical day: median AQI 48 across 2019–2025, with 0.0% of December days above AQI 100. Fine particulate matter (PM2.5) is the main driver.

  • 53.9% of December days were Good (AQI 0–50), 46.1% Moderate (51–100).
  • 0 days of 217 reached AQI 101+; the December peak was 96.
  • Best December: 2023; worst December: 2021.

Frequently asked questions

What is the air quality like in Tulsa in December?

Across 2019–2025, the median daily AQI in Tulsa in December was 48 (Good). 53.9% of days were Good, 46.1% Moderate, and 0.0% reached Unhealthy for Sensitive Groups or worse, based on 217 monitored days in EPA's Air Quality System.

Is December a good time for outdoor exercise in Tulsa?

A typical December day in Tulsa sits in the Good range (median AQI 48), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of December days reached AQI 101+ in 2019–2025.

Which pollutant causes Tulsa's December air quality problems?

Fine particulate matter (PM2.5) set the daily AQI on 77.0% of December days in Tulsa. The highest December AQI recorded in 2019–2025 was 96 (Moderate), in 2021.

Tulsa December air quality, year by year

Tulsa December air quality by year (Tulsa, OK, EPA AQS daily AQI)

YearDays monitoredMedian AQIDays above 100Peak AQIMain pollutant
20193148077PM2.5
20203154075PM2.5
2021worst3155096PM2.5
20223143072PM2.5
2023cleanest3138060PM2.5
20243146088PM2.5
20253144078PM2.5

What December air means in Tulsa

A typical December day in Tulsa sits in the Good range (median AQI 48), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of December days reached AQI 101+ in 2019–2025.

December's median AQI of 48 is in line with Tulsa's whole-year median of 51, so this period is neither a clean nor a dirty stretch for the area. Nationally, the median December AQI across every EPA metro area (95,590 metro-days, 2019–2025) is 39, so Tulsa runs above the national December norm; 0.0% of its December days topped AQI 100 versus 0.7% nationally (about the same).

December is part of Tulsa's winter season (December, January, February); the winter page pools all three months.

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

Right now in Tulsa

The latest EPA AirNow observation puts Tulsa's AQI at 68 (PM2.5). The figures above are multi-year month statistics, not today's reading.

View current Tulsa air quality →

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