South 3rd Street, Hamilton, Montana, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
September Air Quality Analysis
South 3rd Street, Hamilton, Montana, United States
AQI Trends: Highest and Lowest
Same Day Analysis (29th September ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 31 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 29th Sep - 30th Sep 2025
South 3rd Street, Hamilton, Montana, United States
7 AM29th Sep 2025
7 PM
6 AM30th Sep 2025
49AQI
23AQI
40AQI
18AQI
In the last 24 hours,
South 3rd Street's AQI reached its highest point of 49 at 4 PM during the Day, while the lowest point, 18, was recorded at 11 PM during the Night between 29th Sep and 30th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
South 3rd Street, Hamilton, Montana, United States
22°C10/32°C
23°C11/33°C
21°C10/34°C
22°C10/34°C
18°C8/29°C
16°C4/28°C
22°C15/31°C
21°C13/30°C
18°C11/26°C
17°C11/28°C
15°C5/26°C
12°C4/25°C
13°C3/22°C
14°C3/23°C
15°C6/24°C
10°C1/18°C
12°C1/23°C
14°C3/27°C
15°C5/28°C
17°C6/28°C
18°C5/29°C
17°C5/29°C
14°C8/22°C
14°C2/26°C
17°C4/30°C
18°C4/31°C
16°C9/23°C
14°C4/27°C
16°C4/28°C
17°C9/31°C
--°C/°C
43AQI
40AQI
43AQI
40AQI
2025 Days Vs Air Quality
South 3rd Street, Hamilton, Montana, United States
93%
175
7%
13
Total number of days with different AQI categories in last 273 days in 2025 (92 days remaining)
Under WHO’s Safe Air Quality Limits: 93%
Health Risk Level:
Very Low
In 2025, 93% of 273 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
South 3rd Street, Hamilton, Montana, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
26AQI
18AQI
19AQI
17AQI
18AQI
18AQI
17AQI
21AQI
18AQI
18AQI
21AQI
22AQI
21AQI
14AQI
17AQI
28AQI
29AQI
18AQI
19AQI
26AQI
25AQI
31AQI
16AQI
20AQI
19AQI
15AQI
12AQI
15AQI
20AQI
21AQI
19AQI
28AQI
21AQI
18AQI
16AQI
15AQI
20AQI
24AQI
35AQI
15AQI
15AQI
20AQI
17AQI
14AQI
16AQI
16AQI
15AQI
15AQI
14AQI
14AQI
13AQI
13AQI
12AQI
13AQI
12AQI
12AQI
13AQI
13AQI
12AQI
17AQI
16AQI
17AQI
17AQI
17AQI
16AQI
15AQI
16AQI
17AQI
14AQI
15AQI
17AQI
17AQI
25AQI
29AQI
35AQI
28AQI
20AQI
25AQI
21AQI
18AQI
20AQI
23AQI
24AQI
19AQI
19AQI
20AQI
19AQI
17AQI
15AQI
19AQI
29AQI
22AQI
19AQI
19AQI
16AQI
16AQI
19AQI
25AQI
26AQI
23AQI
19AQI
31AQI
20AQI
19AQI
21AQI
20AQI
18AQI
18AQI
22AQI
20AQI
21AQI
20AQI
28AQI
30AQI
29AQI
26AQI
22AQI
25AQI
17AQI
20AQI
27AQI
29AQI
33AQI
23AQI
19AQI
18AQI
20AQI
21AQI
24AQI
24AQI
28AQI
27AQI
24AQI
29AQI
23AQI
17AQI
16AQI
17AQI
19AQI
22AQI
22AQI
30AQI
29AQI
26AQI
17AQI
21AQI
28AQI
37AQI
44AQI
47AQI
49AQI
54AQI
56AQI
57AQI
44AQI
37AQI
45AQI
45AQI
56AQI
51AQI
50AQI
60AQI
69AQI
77AQI
81AQI
77AQI
37AQI
48AQI
50AQI
22AQI
19AQI
23AQI
30AQI
18AQI
17AQI
27AQI
28AQI
27AQI
26AQI
26AQI
19AQI
27AQI
22AQI
46AQI
55AQI
60AQI
51AQI
31AQI
19AQI
20AQI
16AQI
21AQI
23AQI
33AQI
40AQI
No. of days
202525AQI
Highest AQI recorded in
September40AQI
Lowest AQI recorded in
May16AQI
Most & Least Polluted Years Over the Last 1 Years
South 3rd Street's annual 2025 AQI (25) shows an average percentage change of NaN% (improved AQI) compared to previous years: .