Wichita Air Quality in Winter

Across 2019–2025, Wichita's winter (December–February) air quality had a median AQI of 44 (Good) over 632 monitored days in the Wichita, KS area. 0.2% of winter days (1 of 632) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 69.3% of days. The cleanest winter on record here was 2019 (median AQI 34, 0 days above 100) and the worst was 2021 (median 54, 1 day above 100, peak AQI 147).

44
Median AQI
Good
0.2%
Days above AQI 100
1 of 632 days
62
90th percentile AQI
worst 1 day in 10
147
Peak AQI
Unhealthy for Sensitive Groups
PM2.5
Main pollutant
69.3% of days
61.1%
Good days
386 of 632
  • Good: 61.1%
  • Moderate: 38.8%
  • Unhealthy for Sensitive Groups: 0.2%
  • Unhealthy or worse: 0.0%

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QUICK ANSWER

How is the air in Wichita 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.

  • 61.1% of winter days were Good (AQI 0–50), 38.8% Moderate (51–100).
  • 1 day of 632 reached AQI 101+; the winter peak was 147.
  • Cleanest month: January; worst month: December.

Frequently asked questions

What is the air quality like in Wichita in winter?

Across 2019–2025, the median daily AQI in Wichita in winter was 44 (Good). 61.1% of days were Good, 38.8% Moderate, and 0.2% reached Unhealthy for Sensitive Groups or worse, based on 632 monitored days in EPA's Air Quality System.

Is winter a good time for outdoor exercise in Wichita?

A typical winter day in Wichita 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 Wichita's winter air quality problems?

Fine particulate matter (PM2.5) set the daily AQI on 69.3% of winter days in Wichita. The highest winter AQI recorded in 2019–2025 was 147 (Unhealthy for Sensitive Groups), in 2021.

Wichita winter air quality, year by year

Wichita winter air quality by year (Wichita, KS, EPA AQS daily AQI)

YearDays monitoredMedian AQIDays above 100Peak AQIMain pollutant
2019cleanest9034069PM2.5
20209142064PM2.5
2021worst90541147PM2.5
20229043079PM2.5
20239043071PM2.5
20249138068PM2.5
20259051069PM2.5

What winter air means in Wichita

A typical winter day in Wichita 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 Wichita's whole-year median of 50, 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 Wichita 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 42, 0.0% of days above 100) and December the worst (median 49, 0.5% above 100).

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

Right now in Wichita

The latest EPA AirNow observation puts Wichita's AQI at 64 (PM2.5). The figures above are multi-year season statistics, not today's reading.

View current Wichita air quality →

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