Bad Air Days in Creek County, Oklahoma: 1 a Year

1 bad air day a year

Fewer bad air days than most monitored US counties. Ranked 609 of 996 monitored counties, where 1 is worst.

What makes them bad: mostly ozone: summer smog (0% particle days).

When the bad days come in Creek

Most bad days here fall in June and April and July and August. Averaged over 2016 to 2025.

Is a purifier worth it here?

Bad air days are rare here. A standard furnace filter is enough; no purifier needed for outdoor air.
On the odd bad day, check AirNow and keep windows shut.

The record for Creek

In 2000 to 2009 this county averaged 9 bad days a year; in 2016 to 2025, 1. The air has improved. The worst recent year was 2024, with 4 bad days on 267 monitored days.

Date	AQI	Main pollutant
2024-04-04	179	Ozone
2023-09-07	136	Ozone
2024-06-03	132	Ozone
2021-06-14	126	Ozone
2024-08-06	119	Ozone

The air on a normal day

Across 3,172 monitored days from 2016 to 2025, the air in Creek County rated Good on 87% of them, more often than the 72% typical of monitored counties, and Moderate on 13%. The median day sat at AQI 39; one day in ten went above 55.

The pollutant setting the AQI on an ordinary day here:

ozone100%3,172 days

Creek County by year

Year	Days monitored	Good	Moderate	Over 100	Over 150	Median AQI	Highest AQI
2025*	273	220	53	0	0	42	97
2024	267	202	61	4	1	44	179
2023	249	196	50	3	0	44	136
2022	279	220	57	2	0	43	112
2021	343	305	37	1	0	37	126
2020	363	350	13	0	0	35	93
2019	356	331	24	1	0	36	101
2018	344	303	40	1	0	36	115
2017	364	323	41	0	0	39	97
2016	334	301	33	0	0	39	87
2015	349	322	27	0	0	36	100
2014	351	320	31	0	0	37	100
2013	353	307	44	2	0	39	108
2012	347	249	76	22	2	42	159
2011	364	251	91	22	1	44	164
2010	356	298	56	2	0	38	112

*2025 may be a partial year in EPA's file.

Oklahoma compared

How this is counted

A bad air day is a day the county's daily AQI from EPA AirData went above 100, the level where EPA tells children, older adults and people with asthma or heart disease to cut back outdoors. Monitors do not run every day, so yearly counts are scaled to 365 days. This is the record, not today's air: for that, check AirNow. More on the method in how the county numbers are made, on the AQI 100 line in what counts as a bad air day, and on why a purifier does not touch ozone in smoke vs ozone.