Happy Valley, Tennessee, 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
Happy Valley, Tennessee, United States
AQI Trends: Highest and Lowest
Same Day Analysis (29th October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 24 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 29th Oct - 30th Oct 2025
Happy Valley, Tennessee, United States
7 AM29th Oct 2025
7 PM
6 AM30th Oct 2025
53AQI
12AQI
28AQI
11AQI
In the last 24 hours,
Happy Valley's AQI reached its highest point of 53 at 12 PM during the Day, while the lowest point, 11, was recorded at 6 AM during the Night between 29th Oct and 30th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Happy Valley, Tennessee, United States
23°C17/31°C
24°C17/32°C
21°C13/29°C
20°C13/29°C
20°C13/29°C
21°C13/31°C
23°C15/32°C
23°C20/30°C
21°C16/26°C
18°C13/27°C
17°C11/24°C
17°C9/26°C
17°C9/27°C
18°C9/26°C
19°C10/28°C
19°C11/29°C
19°C11/27°C
18°C8/29°C
21°C12/31°C
17°C9/20°C
11°C5/19°C
14°C6/24°C
13°C7/22°C
13°C3/24°C
11°C3/19°C
11°C2/21°C
15°C10/21°C
11°C10/15°C
12°C10/15°C
12°C9/14°C
--°C/°C
51AQI
36AQI
50AQI
37AQI
2025 Days Vs Air Quality
Happy Valley, Tennessee, United States
85%
185
15%
32
Total number of days with different AQI categories in last 303 days in 2025 (62 days remaining)
Under WHO’s Safe Air Quality Limits: 85%
Health Risk Level:
Low
In 2025, 85% of 303 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
Happy Valley, Tennessee, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
39AQI
53AQI
53AQI
42AQI
32AQI
29AQI
42AQI
47AQI
44AQI
46AQI
28AQI
22AQI
34AQI
30AQI
40AQI
35AQI
34AQI
32AQI
44AQI
37AQI
29AQI
43AQI
55AQI
56AQI
54AQI
41AQI
30AQI
29AQI
30AQI
43AQI
37AQI
34AQI
40AQI
42AQI
48AQI
42AQI
32AQI
19AQI
22AQI
24AQI
25AQI
27AQI
37AQI
27AQI
30AQI
27AQI
20AQI
24AQI
31AQI
47AQI
45AQI
37AQI
38AQI
37AQI
31AQI
28AQI
25AQI
25AQI
29AQI
37AQI
31AQI
22AQI
24AQI
28AQI
21AQI
36AQI
46AQI
51AQI
55AQI
59AQI
57AQI
49AQI
33AQI
30AQI
34AQI
36AQI
53AQI
51AQI
37AQI
30AQI
33AQI
38AQI
30AQI
31AQI
31AQI
33AQI
39AQI
42AQI
50AQI
54AQI
52AQI
51AQI
48AQI
35AQI
36AQI
35AQI
35AQI
32AQI
45AQI
46AQI
53AQI
55AQI
53AQI
52AQI
47AQI
35AQI
38AQI
36AQI
42AQI
33AQI
34AQI
35AQI
39AQI
33AQI
27AQI
41AQI
49AQI
46AQI
39AQI
49AQI
43AQI
33AQI
33AQI
33AQI
37AQI
34AQI
31AQI
43AQI
45AQI
30AQI
37AQI
32AQI
35AQI
39AQI
41AQI
53AQI
53AQI
30AQI
28AQI
27AQI
35AQI
48AQI
48AQI
46AQI
48AQI
51AQI
47AQI
46AQI
49AQI
40AQI
34AQI
35AQI
33AQI
27AQI
32AQI
35AQI
40AQI
41AQI
40AQI
39AQI
37AQI
45AQI
52AQI
46AQI
31AQI
32AQI
34AQI
39AQI
44AQI
46AQI
45AQI
46AQI
49AQI
49AQI
44AQI
42AQI
44AQI
39AQI
44AQI
48AQI
46AQI
41AQI
28AQI
28AQI
28AQI
26AQI
22AQI
22AQI
40AQI
51AQI
54AQI
59AQI
44AQI
41AQI
47AQI
48AQI
48AQI
53AQI
49AQI
55AQI
51AQI
52AQI
56AQI
50AQI
55AQI
64AQI
41AQI
28AQI
44AQI
39AQI
45AQI
42AQI
43AQI
44AQI
30AQI
37AQI
24AQI
44AQI
39AQI
30AQI
42AQI
40AQI
40AQI
39AQI
46AQI
No. of days
202539AQI
Highest AQI recorded in
October46AQI
Lowest AQI recorded in
May30AQI
Most & Least Polluted Years Over the Last 1 Years
Happy Valley's annual 2025 AQI (39) shows an average percentage change of NaN% (improved AQI) compared to previous years: .