Omaha Air Quality in 2019

In 2019, Omaha's air quality (Omaha-Council Bluffs, NE-IA area) had a median daily AQI of 46 (Good) across 365 monitored days. 0 days (0.0%) reached Unhealthy for Sensitive Groups or worse, 231 were Good, and the year's peak AQI was 97 (Moderate). Fine particulate matter (PM2.5) set the daily AQI on 237 of those days. The cleanest month of 2019 was November (median AQI 34, 0 days above 100) and the worst was February (median 59, 0 days above 100, peak 81).

46
Median AQI
Good
0
Days above AQI 100
0.0% of 365 days
64
90th percentile AQI
worst 1 day in 10
97
Peak AQI
Moderate
PM2.5
Main pollutant
237 of 365 days
231
Good days
63.3% of days
  • Good: 63.3%
  • Moderate: 36.7%
  • Unhealthy for Sensitive Groups: 0.0%
  • Unhealthy or worse: 0.0%

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QUICK ANSWER

How was Omaha's air quality in 2019?

Good on a typical day: median AQI 46, with 0 days above AQI 100 out of 365 monitored — the 1st cleanest of 7 years on record for the area.

  • Peak AQI in 2019: 97 (Moderate).
  • Fine particulate matter (PM2.5) was the main pollutant on 237 days.
  • Cleanest month: November; worst: February.

Frequently asked questions

What was the average AQI in Omaha in 2019?

EPA's Air Quality System puts Omaha's (Omaha-Council Bluffs, NE-IA) median daily AQI for 2019 at 46, which is Good. 0 days were Unhealthy for Sensitive Groups or worse and the year's highest AQI was 97.

Which month had the worst air quality in Omaha in 2019?

The cleanest month of 2019 was November (median AQI 34, 0 days above 100) and the worst was February (median 59, 0 days above 100, peak 81).

Was 2019 a good or bad year for Omaha's air?

Among the 7 years EPA has published for the area (2019–2025), 2019 ranks 1st cleanest by days above AQI 100 — the best year on record here. 2019's median of 46 is in line with the area's typical annual median of 47.

Omaha month by month in 2019

Omaha air quality month by month, 2019 (Omaha-Council Bluffs, NE-IA, EPA AQS daily AQI)

MonthDays monitoredMedian AQIDays above 100Peak AQIMain pollutant
January3148078PM2.5
Februaryworst2859081PM2.5
March3153082PM2.5
April3046071O3
May3142097O3
June3048084O3
July3152077PM2.5
August3143071PM2.5
September3046064PM2.5
October3143054PM2.5
Novembercleanest3034059PM2.5
December3151076PM2.5

How 2019 compares

Among the 7 years EPA has published for the area (2019–2025), 2019 ranks 1st cleanest by days above AQI 100 — the best year on record here.

2019's median of 46 is in line with the area's typical annual median of 47.

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

Right now in Omaha

The latest EPA AirNow observation puts Omaha's AQI at 26 (PM2.5). The figures above are multi-year annual statistics, not today's reading.

View current Omaha air quality →

Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Omaha-Council Bluffs, NE-IA), 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.