Houston, British Columbia, Canada 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
Houston, British Columbia, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (3rd October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 18 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 3rd Oct - 4th Oct 2025
Houston, British Columbia, Canada
7 AM3rd Oct 2025
7 PM
6 AM4th Oct 2025
69AQI
55AQI
72AQI
55AQI
In the last 24 hours,
Houston's AQI reached its highest point of 72 at 1 AM during the Night, while the lowest point, 55, was recorded at 7 PM during the Night between 3rd Oct and 4th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Houston, British Columbia, Canada
21°C14/27°C
21°C15/28°C
21°C15/28°C
19°C14/26°C
16°C11/23°C
14°C9/20°C
16°C10/21°C
16°C11/20°C
17°C13/20°C
13°C9/15°C
13°C11/16°C
12°C5/19°C
16°C10/23°C
13°C6/16°C
10°C5/17°C
12°C7/15°C
12°C9/15°C
10°C8/13°C
10°C7/11°C
8°C4/13°C
8°C5/13°C
8°C4/12°C
6°C3/8°C
7°C2/11°C
5°C2/7°C
7°C5/12°C
6°C2/12°C
9°C4/14°C
8°C5/11°C
9°C7/12°C
--°C/°C
52AQI
47AQI
48AQI
47AQI
2025 Days Vs Air Quality
Houston, British Columbia, Canada
95%
183
4%
8
0.5%
1
Total number of days with different AQI categories in last 277 days in 2025 (88 days remaining)
Under WHO’s Safe Air Quality Limits: 95%
Health Risk Level:
Very Low
In 2025, 95% of 277 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
Houston, British Columbia, Canada
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
50AQI
28AQI
16AQI
20AQI
32AQI
45AQI
53AQI
50AQI
43AQI
38AQI
34AQI
34AQI
18AQI
16AQI
24AQI
23AQI
19AQI
25AQI
27AQI
17AQI
24AQI
27AQI
31AQI
39AQI
21AQI
20AQI
13AQI
20AQI
16AQI
30AQI
31AQI
24AQI
30AQI
17AQI
14AQI
23AQI
28AQI
26AQI
15AQI
15AQI
17AQI
16AQI
18AQI
19AQI
16AQI
18AQI
19AQI
18AQI
21AQI
19AQI
20AQI
17AQI
19AQI
15AQI
18AQI
14AQI
14AQI
20AQI
18AQI
15AQI
17AQI
15AQI
14AQI
15AQI
18AQI
20AQI
13AQI
13AQI
15AQI
23AQI
25AQI
27AQI
14AQI
28AQI
28AQI
23AQI
35AQI
47AQI
55AQI
30AQI
21AQI
17AQI
17AQI
19AQI
18AQI
16AQI
16AQI
14AQI
14AQI
20AQI
45AQI
21AQI
17AQI
15AQI
14AQI
17AQI
15AQI
15AQI
15AQI
14AQI
15AQI
18AQI
16AQI
17AQI
18AQI
17AQI
21AQI
20AQI
18AQI
17AQI
21AQI
38AQI
33AQI
34AQI
34AQI
31AQI
29AQI
50AQI
32AQI
35AQI
26AQI
20AQI
20AQI
26AQI
32AQI
32AQI
42AQI
27AQI
20AQI
26AQI
22AQI
25AQI
28AQI
20AQI
17AQI
21AQI
21AQI
19AQI
18AQI
18AQI
18AQI
18AQI
17AQI
14AQI
13AQI
14AQI
16AQI
16AQI
14AQI
22AQI
30AQI
32AQI
38AQI
44AQI
48AQI
48AQI
43AQI
41AQI
42AQI
51AQI
72AQI
96AQI
80AQI
91AQI
105AQI
76AQI
45AQI
40AQI
38AQI
41AQI
30AQI
31AQI
33AQI
24AQI
27AQI
42AQI
27AQI
27AQI
30AQI
27AQI
19AQI
17AQI
23AQI
24AQI
17AQI
11AQI
19AQI
10AQI
19AQI
19AQI
27AQI
18AQI
32AQI
27AQI
18AQI
23AQI
25AQI
25AQI
40AQI
21AQI
No. of days
202526AQI
Highest AQI recorded in
September40AQI
Lowest AQI recorded in
May18AQI
Most & Least Polluted Years Over the Last 1 Years
Houston's annual 2025 AQI (26) shows an average percentage change of NaN% (improved AQI) compared to previous years: .