Air Quality in Lake, Montana

42
Current AQI: Good
Primary pollutant: PM2.5 · Updated 03/30/26
9
Median AQI (2024)
77
Max AQI (2024)
→ stable
10-Year Trend
PM2.5
Primary Pollutant
108
Good Days (2024)
7
Monitoring Stations

AQI Trend (Median)

Air Quality Days by Category

Annual Summary

YearMedian AQIMax AQI Good DaysModerate DaysUnhealthy Days Ozone DaysPM2.5 Days
2024 9 7710870 0115
2023 13 15710162 0109
2022 11 1209331 097
2021 9 15210593 0117
2020 7 18311133 0117
2019 10 539210 093
2018 11 11710783 0118
2017 9 1959992 0110
2016 8 13011721 0120
2015 12 17211082 0120

Recent Daily AQI

DateAQICategoryPrimary Pollutant
Dec 23, 2024 1 GoodPM2.5
Dec 20, 2024 4 GoodPM2.5
Dec 17, 2024 2 GoodPM2.5
Dec 14, 2024 3 GoodPM2.5
Dec 11, 2024 6 GoodPM2.5
Dec 8, 2024 2 GoodPM2.5
Dec 5, 2024 8 GoodPM2.5
Dec 2, 2024 21 GoodPM2.5
Nov 29, 2024 7 GoodPM2.5
Nov 26, 2024 4 GoodPM2.5
Nov 23, 2024 4 GoodPM2.5
Nov 20, 2024 8 GoodPM2.5
Nov 17, 2024 2 GoodPM2.5
Nov 14, 2024 4 GoodPM2.5
Nov 11, 2024 11 GoodPM2.5
Nov 8, 2024 22 GoodPM2.5
Nov 5, 2024 4 GoodPM2.5
Nov 2, 2024 4 GoodPM2.5
Oct 30, 2024 14 GoodPM2.5
Oct 27, 2024 7 GoodPM2.5
Oct 24, 2024 9 GoodPM2.5
Oct 21, 2024 3 GoodPM2.5
Oct 18, 2024 5 GoodPM2.5
Oct 15, 2024 42 GoodPM2.5
Oct 12, 2024 29 GoodPM2.5
Oct 9, 2024 31 GoodPM2.5
Oct 6, 2024 11 GoodPM2.5
Oct 3, 2024 9 GoodPM2.5
Sep 30, 2024 15 GoodPM2.5
Sep 27, 2024 6 GoodPM2.5
Sep 24, 2024 8 GoodPM2.5
Sep 21, 2024 7 GoodPM2.5
Sep 18, 2024 15 GoodPM2.5
Sep 15, 2024 17 GoodPM2.5
Sep 12, 2024 4 GoodPM2.5
Sep 9, 2024 69 ModeratePM2.5
Sep 6, 2024 29 GoodPM2.5
Sep 3, 2024 43 GoodPM2.5
Aug 31, 2024 12 GoodPM2.5
Aug 28, 2024 21 GoodPM2.5
Aug 25, 2024 8 GoodPM2.5
Aug 22, 2024 26 GoodPM2.5
Aug 19, 2024 34 GoodPM2.5
Aug 16, 2024 29 GoodPM2.5
Aug 13, 2024 51 ModeratePM2.5
Aug 10, 2024 51 ModeratePM2.5
Aug 7, 2024 30 GoodPM2.5
Aug 4, 2024 54 ModeratePM2.5
Aug 1, 2024 21 GoodPM2.5
Jul 29, 2024 54 ModeratePM2.5
Jul 26, 2024 39 GoodPM2.5
Jul 23, 2024 77 ModeratePM2.5
Jul 20, 2024 52 ModeratePM2.5
Jul 17, 2024 46 GoodPM2.5
Jul 14, 2024 31 GoodPM2.5
Jul 11, 2024 32 GoodPM2.5
Jul 8, 2024 28 GoodPM2.5
Jul 5, 2024 21 GoodPM2.5
Jul 2, 2024 12 GoodPM2.5
Jun 29, 2024 12 GoodPM2.5
Jun 26, 2024 15 GoodPM2.5
Jun 23, 2024 14 GoodPM2.5
Jun 20, 2024 12 GoodPM2.5
Jun 17, 2024 8 GoodPM2.5
Jun 14, 2024 13 GoodPM2.5
Jun 11, 2024 14 GoodPM2.5
Jun 8, 2024 14 GoodPM2.5
Jun 5, 2024 6 GoodPM2.5
Jun 2, 2024 11 GoodPM2.5
May 30, 2024 4 GoodPM2.5
May 27, 2024 7 GoodPM2.5
May 24, 2024 6 GoodPM2.5
May 21, 2024 9 GoodPM2.5
May 18, 2024 11 GoodPM2.5
May 15, 2024 12 GoodPM2.5
May 12, 2024 21 GoodPM2.5
May 9, 2024 11 GoodPM2.5
May 6, 2024 2 GoodPM2.5
May 3, 2024 8 GoodPM2.5
Apr 30, 2024 4 GoodPM2.5
Apr 27, 2024 11 GoodPM2.5
Apr 24, 2024 24 GoodPM2.5
Apr 21, 2024 11 GoodPM2.5
Apr 18, 2024 9 GoodPM2.5
Apr 15, 2024 21 GoodPM2.5
Apr 12, 2024 16 GoodPM2.5
Apr 9, 2024 4 GoodPM2.5
Apr 6, 2024 2 GoodPM2.5
Apr 3, 2024 8 GoodPM2.5
Mar 31, 2024 8 GoodPM2.5

Monitoring Stations

RONAN PARK
Not in a city
Est. 1981-01-01
47.5269, -114.1015
POLSON SADDLE SHOP, 1ST STREET & 4TH AVE
Polson
Est. 1984-01-01
47.6922, -114.1632
FIRE STATION-POLSON, 1ST AVE & KOOTENAI
Polson
Est. 1992-07-01
47.6888, -114.1251
50382 US Hiway 93
Polson
Est. 2009-07-21
47.6935, -114.1440
Flathead
Not in a City
Est. 2002-01-01
47.7733, -114.2700
SAMPLER LOCATED ON STRUCTURE ADJACENT TO TRAILER.
Not in a City
Est. 1996-01-04
47.5952, -114.1168
SITE LOCATED ON NE CORNER OF INTERSECTION OF HWY 93 & TERRACE LK.RD.
Not in a City
Est. 1993-03-26
47.5302, -114.0971

Frequently Asked Questions

What is the air quality in Lake, Montana?

Based on EPA data from 2024, Lake has a median Air Quality Index (AQI) of 9, which is classified as "Good." The primary pollutant is PM2.5. Over the past 10 years, air quality has been stable.

Is Lake a good place to live for air quality?

Lake has a 10-year average median AQI of 9. In 2024, there were 108 days with "Good" air quality and 0 days with unhealthy conditions. No special precautions are needed for most people.

What pollutants affect Lake the most?

The primary pollutant driving the AQI in Lake is PM2.5. This is monitored by 7 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 Lake?

There are 7 active EPA monitoring stations in Lake, Montana. These stations continuously measure pollutant levels and contribute to the daily AQI calculations.