Air Quality in Twin Falls, Idaho

39
Current AQI: Good
Primary pollutant: PM2.5 · Updated 03/30/26
23
Median AQI (2024)
158
Max AQI (2024)
↓ improving
10-Year Trend
PM2.5
Primary Pollutant
264
Good Days (2024)
3
Monitoring Stations

AQI Trend (Median)

Air Quality Days by Category

Annual Summary

YearMedian AQIMax AQI Good DaysModerate DaysUnhealthy Days Ozone DaysPM2.5 Days
2024 23 158264767 0347
2023 25 80328160 0344
2022 31 155280712 0353
2021 28 144298567 0361
2020 24 163313447 0364
2019 26 74344210 0365
2018 39 151271795 0355
2017 46 1541681146 0288
2016 22 69333190 0352
2015 32 141237353 0275

Recent Daily AQI

DateAQICategoryPrimary Pollutant
Dec 31, 2024 28 GoodPM2.5
Dec 30, 2024 14 GoodPM2.5
Dec 29, 2024 18 GoodPM2.5
Dec 28, 2024 16 GoodPM2.5
Dec 27, 2024 16 GoodPM2.5
Dec 26, 2024 13 GoodPM2.5
Dec 25, 2024 14 GoodPM2.5
Dec 24, 2024 21 GoodPM2.5
Dec 23, 2024 24 GoodPM2.5
Dec 22, 2024 32 GoodPM2.5
Dec 21, 2024 34 GoodPM2.5
Dec 20, 2024 34 GoodPM2.5
Dec 19, 2024 21 GoodPM2.5
Dec 18, 2024 26 GoodPM2.5
Dec 17, 2024 24 GoodPM2.5
Dec 16, 2024 19 GoodPM2.5
Dec 15, 2024 14 GoodPM2.5
Dec 14, 2024 16 GoodPM2.5
Dec 13, 2024 27 GoodPM2.5
Dec 12, 2024 19 GoodPM2.5
Dec 11, 2024 26 GoodPM2.5
Dec 10, 2024 17 GoodPM2.5
Dec 9, 2024 14 GoodPM2.5
Dec 8, 2024 23 GoodPM2.5
Dec 7, 2024 61 ModeratePM2.5
Dec 6, 2024 66 ModeratePM2.5
Dec 5, 2024 60 ModeratePM2.5
Dec 4, 2024 61 ModeratePM2.5
Dec 3, 2024 56 ModeratePM2.5
Dec 2, 2024 53 ModeratePM2.5
Dec 1, 2024 44 GoodPM2.5
Nov 30, 2024 40 GoodPM2.5
Nov 29, 2024 36 GoodPM2.5
Nov 28, 2024 24 GoodPM2.5
Nov 27, 2024 21 GoodPM2.5
Nov 26, 2024 24 GoodPM2.5
Nov 25, 2024 9 GoodPM2.5
Nov 24, 2024 10 GoodPM2.5
Nov 23, 2024 14 GoodPM2.5
Nov 22, 2024 18 GoodPM2.5
Nov 21, 2024 19 GoodPM2.5
Nov 20, 2024 17 GoodPM2.5
Nov 19, 2024 19 GoodPM2.5
Nov 18, 2024 10 GoodPM2.5
Nov 17, 2024 12 GoodPM2.5
Nov 16, 2024 17 GoodPM2.5
Nov 15, 2024 27 GoodPM2.5
Nov 14, 2024 21 GoodPM2.5
Nov 13, 2024 9 GoodPM2.5
Nov 12, 2024 16 GoodPM2.5
Nov 11, 2024 31 GoodPM2.5
Nov 10, 2024 29 GoodPM2.5
Nov 9, 2024 44 GoodPM2.5
Nov 8, 2024 26 GoodPM2.5
Nov 7, 2024 23 GoodPM2.5
Nov 6, 2024 23 GoodPM2.5
Nov 5, 2024 21 GoodPM2.5
Nov 4, 2024 13 GoodPM2.5
Nov 3, 2024 10 GoodPM2.5
Nov 2, 2024 16 GoodPM2.5
Nov 1, 2024 14 GoodPM2.5
Oct 31, 2024 15 GoodPM2.5
Oct 30, 2024 14 GoodPM2.5
Oct 29, 2024 19 GoodPM2.5
Oct 28, 2024 11 GoodPM2.5
Oct 27, 2024 16 GoodPM2.5
Oct 26, 2024 25 GoodPM2.5
Oct 20, 2024 12 GoodPM2.5
Oct 19, 2024 16 GoodPM2.5
Oct 18, 2024 14 GoodPM2.5
Oct 17, 2024 18 GoodPM2.5
Oct 16, 2024 41 GoodPM2.5
Oct 15, 2024 44 GoodPM2.5
Oct 14, 2024 54 ModeratePM2.5
Oct 13, 2024 39 GoodPM2.5
Oct 12, 2024 51 ModeratePM2.5
Oct 11, 2024 48 GoodPM2.5
Oct 10, 2024 52 ModeratePM2.5
Oct 9, 2024 41 GoodPM2.5
Oct 8, 2024 50 GoodPM2.5
Oct 7, 2024 25 GoodPM2.5
Oct 6, 2024 30 GoodPM2.5
Oct 5, 2024 39 GoodPM2.5
Oct 4, 2024 42 GoodPM2.5
Oct 3, 2024 36 GoodPM2.5
Oct 2, 2024 37 GoodPM2.5
Oct 1, 2024 41 GoodPM2.5
Sep 30, 2024 23 GoodPM2.5
Sep 29, 2024 23 GoodPM2.5
Sep 28, 2024 36 GoodPM2.5

Monitoring Stations

Kimberly Met Tower- 50 Highway 50
Not in a City
Est. 2009-01-01
42.5553, -114.3583
MONITOR IS ON ROOF OF SMITH'S FOOD STORE, IN RESIDENTIAL SECTION.
Twin Falls
Est. 1999-12-08
42.5640, -114.4471
Twin Falls
Twin Falls
Est. 2013-11-07
42.5651, -114.4947

Frequently Asked Questions

What is the air quality in Twin Falls, Idaho?

Based on EPA data from 2024, Twin Falls has a median Air Quality Index (AQI) of 23, which is classified as "Good." The primary pollutant is PM2.5. Over the past 10 years, air quality has been improving.

Is Twin Falls a good place to live for air quality?

Twin Falls has a 10-year average median AQI of 29. In 2024, there were 264 days with "Good" air quality and 7 days with unhealthy conditions. No special precautions are needed for most people.

What pollutants affect Twin Falls the most?

The primary pollutant driving the AQI in Twin Falls is PM2.5. This is monitored by 3 active EPA stations in the county. Other pollutants tracked include ozone, PM10, nitrogen dioxide, sulfur dioxide, and carbon monoxide.

How many air quality monitoring stations are in Twin Falls?

There are 3 active EPA monitoring stations in Twin Falls, Idaho. These stations continuously measure pollutant levels and contribute to the daily AQI calculations.