Castle Hayne, North Carolina, 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
Castle Hayne, North Carolina, United States
AQI Trends: Highest and Lowest
Same Day Analysis (20th October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 30 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 20th Oct - 21st Oct 2025
Castle Hayne, North Carolina, United States
7 AM20th Oct 2025
6 PM
6 AM21st Oct 2025
55AQI
10AQI
58AQI
53AQI
In the last 24 hours,
Castle Hayne's AQI reached its highest point of 58 at 10 PM during the Night, while the lowest point, 10, was recorded at 11 AM during the Day between 20th Oct and 21st Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Castle Hayne, North Carolina, United States
24°C19/31°C
22°C17/28°C
24°C18/30°C
26°C22/32°C
27°C22/33°C
27°C23/35°C
24°C22/27°C
23°C22/25°C
23°C21/26°C
23°C20/28°C
20°C16/25°C
18°C14/24°C
19°C14/24°C
21°C16/27°C
23°C18/29°C
23°C19/29°C
23°C19/30°C
24°C20/31°C
20°C16/25°C
19°C15/25°C
19°C17/23°C
19°C18/21°C
17°C15/18°C
17°C13/20°C
16°C13/19°C
15°C11/22°C
13°C6/22°C
16°C8/25°C
20°C14/27°C
17°C11/23°C
--°C/°C
39AQI
33AQI
38AQI
32AQI
2025 Days Vs Air Quality
Castle Hayne, North Carolina, United States
97%
201
3%
7
Total number of days with different AQI categories in last 294 days in 2025 (71 days remaining)
Under WHO’s Safe Air Quality Limits: 97%
Health Risk Level:
Very Low
In 2025, 97% of 294 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
Castle Hayne, North Carolina, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
44AQI
35AQI
32AQI
27AQI
22AQI
31AQI
34AQI
34AQI
33AQI
23AQI
31AQI
30AQI
28AQI
41AQI
40AQI
29AQI
23AQI
34AQI
40AQI
55AQI
32AQI
45AQI
39AQI
27AQI
32AQI
37AQI
37AQI
40AQI
45AQI
37AQI
30AQI
27AQI
31AQI
30AQI
31AQI
32AQI
33AQI
33AQI
24AQI
25AQI
33AQI
37AQI
45AQI
32AQI
31AQI
28AQI
20AQI
21AQI
35AQI
38AQI
51AQI
51AQI
40AQI
41AQI
45AQI
41AQI
34AQI
34AQI
28AQI
34AQI
32AQI
21AQI
22AQI
36AQI
24AQI
32AQI
45AQI
46AQI
47AQI
39AQI
31AQI
36AQI
49AQI
34AQI
36AQI
30AQI
30AQI
30AQI
31AQI
33AQI
25AQI
29AQI
30AQI
30AQI
30AQI
33AQI
37AQI
36AQI
35AQI
52AQI
61AQI
50AQI
39AQI
24AQI
31AQI
37AQI
33AQI
38AQI
38AQI
46AQI
45AQI
28AQI
32AQI
30AQI
28AQI
27AQI
27AQI
36AQI
35AQI
25AQI
20AQI
31AQI
23AQI
22AQI
26AQI
31AQI
40AQI
44AQI
33AQI
25AQI
23AQI
26AQI
27AQI
25AQI
29AQI
27AQI
35AQI
32AQI
27AQI
41AQI
40AQI
29AQI
23AQI
37AQI
62AQI
31AQI
22AQI
20AQI
21AQI
22AQI
21AQI
26AQI
31AQI
36AQI
48AQI
42AQI
31AQI
28AQI
25AQI
23AQI
23AQI
32AQI
36AQI
36AQI
38AQI
45AQI
44AQI
28AQI
25AQI
25AQI
28AQI
34AQI
29AQI
23AQI
33AQI
34AQI
29AQI
20AQI
24AQI
31AQI
35AQI
37AQI
46AQI
39AQI
34AQI
32AQI
35AQI
37AQI
34AQI
33AQI
34AQI
28AQI
29AQI
27AQI
21AQI
19AQI
22AQI
32AQI
44AQI
39AQI
39AQI
44AQI
45AQI
39AQI
46AQI
50AQI
41AQI
40AQI
35AQI
20AQI
19AQI
25AQI
42AQI
46AQI
44AQI
53AQI
42AQI
30AQI
32AQI
34AQI
33AQI
37AQI
31AQI
32AQI
30AQI
39AQI
No. of days
202533AQI
Highest AQI recorded in
October39AQI
Lowest AQI recorded in
September30AQI
Most & Least Polluted Years Over the Last 1 Years
Castle Hayne's annual 2025 AQI (33) shows an average percentage change of NaN% (improved AQI) compared to previous years: .