Stilwell Castnet Ncore, Tahlequah, Oklahoma, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
July Air Quality Analysis
Stilwell Castnet Ncore, Tahlequah, Oklahoma, United States
AQI Trends: Highest and Lowest
Same Day Analysis (2nd July ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 36 of Good air quality, showing improvement over 2024, 2023 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 2nd Jul - 3rd Jul 2025
Stilwell Castnet Ncore, Tahlequah, Oklahoma, United States
6 AM2nd Jul 2025
8 PM
5 AM3rd Jul 2025
36AQI
33AQI
39AQI
36AQI
In the last 24 hours,
Stilwell Castnet Ncore's AQI reached its highest point of 39 at 4 AM during the Night, while the lowest point, 33, was recorded at 6 PM during the Day between 2nd Jul and 3rd Jul 2025.
Day & Night AQI Trend : Jun - Jul 2025
Stilwell Castnet Ncore, Tahlequah, Oklahoma, United States
25°C21/31°C
22°C20/24°C
24°C19/29°C
24°C21/30°C
24°C21/30°C
25°C17/34°C
23°C17/30°C
24°C16/32°C
23°C19/30°C
21°C19/24°C
22°C20/25°C
23°C21/26°C
23°C18/26°C
24°C19/29°C
26°C19/30°C
24°C17/28°C
26°C21/33°C
27°C22/34°C
28°C23/33°C
27°C23/33°C
27°C23/33°C
27°C22/32°C
27°C22/34°C
27°C22/33°C
26°C21/30°C
25°C21/29°C
27°C22/35°C
25°C21/30°C
25°C20/30°C
25°C18/31°C
0°C0/0°C
38AQI
38AQI
39AQI
38AQI
2025 Days Vs Air Quality
Stilwell Castnet Ncore, Tahlequah, Oklahoma, United States
86%
157
13%
24
0.5%
1
0.5%
1
Total number of days with different AQI categories in last 184 days in 2025 (181 days remaining)
Under WHO’s Safe Air Quality Limits: 86%
Health Risk Level:
Low
In 2025, 86% of 184 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
Stilwell Castnet Ncore, Tahlequah, Oklahoma, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
30AQI
37AQI
48AQI
28AQI
25AQI
21AQI
37AQI
41AQI
51AQI
46AQI
38AQI
29AQI
27AQI
34AQI
42AQI
40AQI
30AQI
24AQI
21AQI
21AQI
24AQI
32AQI
38AQI
34AQI
29AQI
32AQI
33AQI
44AQI
46AQI
23AQI
32AQI
25AQI
27AQI
35AQI
53AQI
45AQI
42AQI
27AQI
36AQI
33AQI
31AQI
27AQI
28AQI
42AQI
39AQI
38AQI
37AQI
25AQI
26AQI
24AQI
26AQI
28AQI
36AQI
43AQI
39AQI
45AQI
35AQI
30AQI
62AQI
33AQI
46AQI
53AQI
38AQI
29AQI
26AQI
33AQI
32AQI
44AQI
43AQI
36AQI
43AQI
50AQI
146AQI
202AQI
23AQI
40AQI
39AQI
50AQI
22AQI
31AQI
48AQI
29AQI
36AQI
63AQI
34AQI
55AQI
41AQI
28AQI
28AQI
31AQI
42AQI
52AQI
22AQI
23AQI
19AQI
25AQI
39AQI
47AQI
42AQI
45AQI
46AQI
57AQI
59AQI
48AQI
50AQI
63AQI
66AQI
55AQI
54AQI
51AQI
34AQI
30AQI
35AQI
41AQI
33AQI
32AQI
53AQI
52AQI
38AQI
19AQI
23AQI
22AQI
19AQI
21AQI
24AQI
31AQI
25AQI
21AQI
32AQI
29AQI
32AQI
30AQI
29AQI
55AQI
67AQI
54AQI
37AQI
33AQI
45AQI
44AQI
40AQI
41AQI
33AQI
22AQI
23AQI
23AQI
18AQI
23AQI
25AQI
20AQI
28AQI
38AQI
40AQI
51AQI
54AQI
51AQI
48AQI
44AQI
46AQI
48AQI
54AQI
54AQI
44AQI
23AQI
26AQI
23AQI
23AQI
26AQI
27AQI
32AQI
43AQI
48AQI
50AQI
45AQI
39AQI
45AQI
29AQI
27AQI
26AQI
32AQI
26AQI
29AQI
36AQI
33AQI
35AQI
47AQI
42AQI
31AQI
39AQI
33AQI
No. of days
202538AQI
Highest AQI recorded in
March47AQI
Lowest AQI recorded in
May31AQI
202438AQI
Highest AQI recorded in
February47AQI
Lowest AQI recorded in
November27AQI
202341AQI
Highest AQI recorded in
September49AQI
Lowest AQI recorded in
October32AQI
202238AQI
Highest AQI recorded in
September51AQI
Lowest AQI recorded in
August28AQI
202130AQI
Highest AQI recorded in
December41AQI
Lowest AQI recorded in
February17AQI
202030AQI
Highest AQI recorded in
June39AQI
Lowest AQI recorded in
May22AQI
Most & Least Polluted Years Over the Last 6 Years
Stilwell Castnet Ncore's annual 2025 AQI (38) shows an average percentage change of 8.5% (worsened AQI) compared to previous years: 2020 (30), 2021 (30), 2022 (38), 2023 (41), 2024 (38).