College Road, Havre, Montana, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
College Road, Havre, Montana, United States
AQI Trends: Highest and Lowest
Same Day Analysis (2nd October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 36 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 2nd Oct - 3rd Oct 2025
College Road, Havre, Montana, United States
7 AM2nd Oct 2025
7 PM
6 AM3rd Oct 2025
61AQI
9AQI
61AQI
22AQI
In the last 24 hours,
College Road's AQI reached its highest point of 61 at 12 PM during the Day, while the lowest point, 9, was recorded at 4 PM during the Day between 2nd Oct and 3rd Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
College Road, Havre, Montana, United States
20°C13/28°C
16°C12/21°C
13°C4/22°C
15°C3/27°C
19°C8/31°C
21°C13/29°C
20°C11/30°C
21°C12/31°C
19°C11/27°C
19°C13/28°C
17°C9/26°C
19°C11/28°C
19°C13/26°C
19°C11/26°C
17°C9/26°C
16°C7/26°C
16°C7/27°C
20°C11/31°C
20°C10/31°C
17°C12/23°C
15°C3/27°C
18°C5/32°C
17°C7/29°C
16°C11/23°C
17°C6/29°C
16°C6/25°C
19°C8/31°C
19°C10/28°C
16°C8/24°C
14°C5/24°C
--°C/°C
46AQI
45AQI
48AQI
44AQI
2025 Days Vs Air Quality
College Road, Havre, Montana, United States
92%
174
8%
16
Total number of days with different AQI categories in last 276 days in 2025 (89 days remaining)
Under WHO’s Safe Air Quality Limits: 92%
Health Risk Level:
Very Low
In 2025, 92% of 276 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
College Road, Havre, Montana, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
20AQI
20AQI
17AQI
20AQI
18AQI
18AQI
20AQI
21AQI
19AQI
17AQI
19AQI
21AQI
13AQI
16AQI
22AQI
30AQI
17AQI
18AQI
19AQI
19AQI
23AQI
17AQI
19AQI
21AQI
15AQI
16AQI
15AQI
15AQI
17AQI
19AQI
19AQI
19AQI
17AQI
17AQI
16AQI
18AQI
22AQI
27AQI
24AQI
16AQI
17AQI
19AQI
19AQI
20AQI
21AQI
18AQI
19AQI
20AQI
25AQI
26AQI
22AQI
17AQI
17AQI
13AQI
11AQI
13AQI
14AQI
15AQI
14AQI
16AQI
17AQI
16AQI
17AQI
18AQI
22AQI
22AQI
20AQI
25AQI
19AQI
21AQI
30AQI
27AQI
29AQI
51AQI
54AQI
53AQI
51AQI
61AQI
58AQI
29AQI
27AQI
24AQI
26AQI
24AQI
28AQI
30AQI
21AQI
21AQI
25AQI
30AQI
29AQI
24AQI
18AQI
15AQI
16AQI
17AQI
20AQI
20AQI
19AQI
19AQI
22AQI
19AQI
20AQI
20AQI
26AQI
22AQI
25AQI
29AQI
24AQI
22AQI
39AQI
52AQI
32AQI
28AQI
26AQI
25AQI
24AQI
44AQI
46AQI
35AQI
31AQI
27AQI
22AQI
22AQI
34AQI
46AQI
53AQI
43AQI
31AQI
29AQI
27AQI
28AQI
27AQI
24AQI
18AQI
29AQI
56AQI
25AQI
23AQI
32AQI
28AQI
26AQI
25AQI
22AQI
24AQI
28AQI
30AQI
25AQI
27AQI
27AQI
27AQI
31AQI
35AQI
34AQI
41AQI
32AQI
35AQI
35AQI
50AQI
61AQI
79AQI
85AQI
45AQI
38AQI
47AQI
60AQI
60AQI
57AQI
50AQI
47AQI
32AQI
31AQI
33AQI
42AQI
51AQI
47AQI
45AQI
49AQI
50AQI
40AQI
41AQI
42AQI
45AQI
41AQI
45AQI
35AQI
36AQI
39AQI
33AQI
36AQI
19AQI
18AQI
19AQI
30AQI
29AQI
30AQI
47AQI
35AQI
No. of days
202529AQI
Highest AQI recorded in
September47AQI
Lowest AQI recorded in
April18AQI
Most & Least Polluted Years Over the Last 1 Years
College Road's annual 2025 AQI (29) shows an average percentage change of NaN% (improved AQI) compared to previous years: .