Josephine, Oregon Air Quality

Josephine County, Oregon (OR)

↑ Worseningover 10 years

Air Quality Grade

53/100

Current Median AQI

Good

5-Year Avg AQI

+13

10-Year Change

Worse

Unhealthy Days/yr

5-year average

PM2.5

Primary Pollutant

Fine Particulate Matter (PM2.5)

10-Year AQI Trend

The solid line shows the median AQI each year. The dashed line shows the 90th percentile (worst 10% of days). Air quality in this area has been declining over the past decade.

Air Quality Day Breakdown

Number of days per year in each EPA AQI category. Green = Good (AQI 0-50), Yellow = Moderate (51-100), Orange = Unhealthy for Sensitive Groups (101-150), Red = Unhealthy or worse (151+).

Year-by-Year Data

Year	Median AQI	90th Pct	Max AQI	Good Days	Moderate	Unhealthy+	Pollutant
2023	44	83	872	205	129	31	PM2.5
2022	39	83	252	208	142	15	PM2.5
2021	36	75	188	240	106	19	PM2.5
2020	35	76	763	228	112	26	PM2.5
2019	34	68	175	251	109	5	PM2.5
2018	47	112	210	195	129	39	PM2.5
2017	42	80	415	219	125	21	PM2.5
2016	38	59	87	286	80	0	PM2.5
2015	37	69	171	241	118	6	PM2.5
2014	31	62	120	264	99	2	PM2.5

What This Means for Josephine County Residents

Josephine, Oregon has received an Air Quality Grade of C (53/100) based on a decade of EPA monitoring data. The current median AQI of 44 falls in the "Good" range.

Concerning trends show air quality has been declining, with the median AQI rising by 13 points over the monitoring period. This could be driven by increased development, wildfire smoke, or industrial activity.

The primary pollutant affecting this area is Fine Particulate Matter (PM2.5). Over the past 5 years, this area has averaged 19 unhealthy air quality days per year — days when sensitive groups (children, elderly, those with respiratory conditions) should limit outdoor activity.