Columbus, Ohio, 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
Columbus, Ohio, United States
AQI Trends: Highest and Lowest
Same Day Analysis (4th October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 67 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 4th Oct - 5th Oct 2025
Columbus, Ohio, United States
7 AM4th Oct 2025
7 PM
6 AM5th Oct 2025
65AQI
48AQI
65AQI
53AQI
In the last 24 hours,
Columbus's AQI reached its highest point of 65 at 12 PM during the Day, while the lowest point, 48, was recorded at 7 PM during the Day between 4th Oct and 5th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Columbus, Ohio, United States
20°C11/29°C
19°C15/25°C
16°C8/21°C
16°C7/25°C
18°C10/26°C
20°C11/28°C
21°C12/30°C
21°C11/30°C
21°C12/31°C
23°C15/32°C
23°C14/33°C
24°C17/32°C
23°C15/32°C
23°C15/32°C
24°C15/33°C
23°C17/32°C
25°C19/34°C
22°C18/29°C
21°C18/26°C
21°C19/24°C
20°C17/23°C
19°C13/26°C
21°C12/31°C
22°C13/34°C
23°C14/32°C
22°C13/32°C
20°C13/29°C
19°C10/30°C
20°C11/32°C
21°C12/32°C
--°C/°C
44AQI
44AQI
47AQI
44AQI
2025 Days Vs Air Quality
Columbus, Ohio, United States
70%
134
30%
58
Total number of days with different AQI categories in last 278 days in 2025 (87 days remaining)
Under WHO’s Safe Air Quality Limits: 70%
Health Risk Level:
Low
In 2025, 70% of 278 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Columbus, Ohio, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
40AQI
48AQI
61AQI
40AQI
20AQI
29AQI
32AQI
25AQI
27AQI
22AQI
17AQI
27AQI
17AQI
34AQI
35AQI
36AQI
42AQI
40AQI
40AQI
24AQI
25AQI
40AQI
46AQI
46AQI
36AQI
44AQI
22AQI
44AQI
47AQI
33AQI
29AQI
23AQI
28AQI
46AQI
22AQI
35AQI
33AQI
23AQI
19AQI
27AQI
25AQI
36AQI
38AQI
31AQI
37AQI
46AQI
37AQI
23AQI
31AQI
45AQI
54AQI
29AQI
20AQI
29AQI
28AQI
27AQI
16AQI
17AQI
16AQI
31AQI
25AQI
25AQI
21AQI
32AQI
42AQI
50AQI
36AQI
41AQI
53AQI
80AQI
72AQI
49AQI
76AQI
76AQI
57AQI
54AQI
61AQI
70AQI
76AQI
53AQI
40AQI
43AQI
33AQI
37AQI
24AQI
36AQI
49AQI
51AQI
59AQI
60AQI
55AQI
50AQI
49AQI
42AQI
40AQI
38AQI
32AQI
40AQI
50AQI
60AQI
98AQI
65AQI
52AQI
49AQI
62AQI
53AQI
52AQI
51AQI
41AQI
57AQI
69AQI
46AQI
28AQI
24AQI
27AQI
29AQI
50AQI
61AQI
53AQI
61AQI
53AQI
40AQI
24AQI
31AQI
30AQI
48AQI
53AQI
75AQI
46AQI
47AQI
53AQI
56AQI
57AQI
55AQI
51AQI
61AQI
60AQI
59AQI
55AQI
34AQI
54AQI
63AQI
62AQI
48AQI
34AQI
44AQI
31AQI
19AQI
26AQI
40AQI
33AQI
21AQI
22AQI
29AQI
39AQI
30AQI
25AQI
27AQI
32AQI
38AQI
43AQI
40AQI
60AQI
30AQI
31AQI
31AQI
35AQI
42AQI
47AQI
48AQI
56AQI
54AQI
52AQI
51AQI
57AQI
58AQI
61AQI
55AQI
51AQI
46AQI
35AQI
41AQI
29AQI
29AQI
29AQI
45AQI
54AQI
45AQI
44AQI
48AQI
61AQI
67AQI
42AQI
33AQI
31AQI
52AQI
48AQI
44AQI
44AQI
55AQI
No. of days
202542AQI
Highest AQI recorded in
October55AQI
Lowest AQI recorded in
May31AQI
Most & Least Polluted Years Over the Last 1 Years
Columbus's annual 2025 AQI (42) shows an average percentage change of NaN% (improved AQI) compared to previous years: .