Broadus, Miles City, Montana, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
Broadus, Miles City, Montana, United States
AQI Trends: Highest and Lowest
Same Day Analysis (12th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 24 of Good air quality, showing improvement over 2024, 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 12th Aug - 13th Aug 2025
Broadus, Miles City, Montana, United States
5 AM12th Aug 2025
8 PM
4 AM13th Aug 2025
34AQI
20AQI
36AQI
21AQI
In the last 24 hours,
Broadus's AQI reached its highest point of 36 at 12 AM during the Night, while the lowest point, 20, was recorded at 7 AM during the Day between 12th Aug and 13th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Broadus, Miles City, Montana, United States
28°C16/37°C
19°C15/22°C
13°C12/15°C
19°C11/27°C
22°C15/29°C
25°C17/33°C
23°C17/30°C
25°C17/33°C
21°C17/25°C
21°C17/26°C
23°C13/31°C
26°C16/36°C
26°C17/35°C
25°C16/33°C
22°C17/28°C
19°C16/23°C
20°C16/26°C
22°C17/28°C
24°C17/32°C
24°C15/32°C
23°C16/30°C
25°C16/33°C
22°C17/27°C
25°C15/34°C
26°C17/33°C
20°C15/24°C
19°C11/26°C
21°C11/28°C
22°C13/31°C
22°C13/30°C
--°C/°C
32AQI
32AQI
34AQI
31AQI
2025 Days Vs Air Quality
Broadus, Miles City, Montana, United States
98%
220
2%
4
Total number of days with different AQI categories in last 225 days in 2025 (140 days remaining)
Under WHO’s Safe Air Quality Limits: 98%
Health Risk Level:
Very Low
In 2025, 98% of 225 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Broadus, Miles City, Montana, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
36AQI
31AQI
27AQI
27AQI
28AQI
28AQI
36AQI
27AQI
26AQI
24AQI
23AQI
24AQI
28AQI
25AQI
27AQI
28AQI
25AQI
29AQI
40AQI
50AQI
44AQI
26AQI
26AQI
26AQI
26AQI
26AQI
27AQI
27AQI
27AQI
28AQI
28AQI
28AQI
28AQI
27AQI
29AQI
26AQI
36AQI
26AQI
31AQI
31AQI
32AQI
32AQI
33AQI
38AQI
38AQI
31AQI
28AQI
28AQI
27AQI
45AQI
42AQI
30AQI
26AQI
29AQI
37AQI
23AQI
24AQI
22AQI
22AQI
23AQI
23AQI
33AQI
25AQI
20AQI
21AQI
23AQI
24AQI
23AQI
24AQI
22AQI
26AQI
24AQI
28AQI
16AQI
15AQI
17AQI
21AQI
23AQI
16AQI
16AQI
15AQI
18AQI
16AQI
22AQI
19AQI
20AQI
30AQI
18AQI
18AQI
21AQI
25AQI
22AQI
22AQI
26AQI
22AQI
26AQI
28AQI
25AQI
24AQI
34AQI
36AQI
29AQI
21AQI
23AQI
21AQI
25AQI
17AQI
17AQI
18AQI
17AQI
15AQI
14AQI
18AQI
22AQI
23AQI
19AQI
23AQI
23AQI
20AQI
18AQI
18AQI
23AQI
26AQI
25AQI
22AQI
22AQI
22AQI
23AQI
28AQI
26AQI
25AQI
24AQI
26AQI
20AQI
19AQI
18AQI
18AQI
17AQI
15AQI
13AQI
16AQI
19AQI
17AQI
23AQI
23AQI
20AQI
22AQI
20AQI
20AQI
20AQI
47AQI
33AQI
21AQI
34AQI
23AQI
22AQI
20AQI
30AQI
53AQI
52AQI
49AQI
59AQI
55AQI
41AQI
24AQI
26AQI
33AQI
27AQI
26AQI
27AQI
27AQI
25AQI
23AQI
20AQI
27AQI
26AQI
21AQI
24AQI
23AQI
20AQI
19AQI
21AQI
26AQI
28AQI
28AQI
33AQI
28AQI
25AQI
23AQI
26AQI
26AQI
30AQI
38AQI
35AQI
32AQI
32AQI
32AQI
36AQI
39AQI
35AQI
30AQI
27AQI
33AQI
31AQI
29AQI
37AQI
29AQI
26AQI
27AQI
31AQI
50AQI
42AQI
48AQI
36AQI
31AQI
35AQI
29AQI
29AQI
28AQI
18AQI
18AQI
47AQI
38AQI
24AQI
29AQI
30AQI
21AQI
22AQI
22AQI
30AQI
31AQI
32AQI
No. of days
202527AQI
Highest AQI recorded in
August32AQI
Lowest AQI recorded in
March21AQI
202434AQI
Highest AQI recorded in
July73AQI
Lowest AQI recorded in
March19AQI
202345AQI
Highest AQI recorded in
July70AQI
Lowest AQI recorded in
January31AQI
202237AQI
Highest AQI recorded in
July52AQI
Lowest AQI recorded in
January29AQI
202145AQI
Highest AQI recorded in
August74AQI
Lowest AQI recorded in
December31AQI
202044AQI
Highest AQI recorded in
September62AQI
Lowest AQI recorded in
March31AQI
Most & Least Polluted Years Over the Last 6 Years
Broadus's annual 2025 AQI (27) shows an average percentage change of -33.3% (improved AQI) compared to previous years: 2020 (44), 2021 (45), 2022 (37), 2023 (45), 2024 (34).