Mckinleyville, California, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
Mckinleyville, California, United States
AQI Trends: Highest and Lowest
Same Day Analysis (20th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 24 of Good air quality, showing improvement over 2024, 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 20th Aug - 21st Aug 2025
Mckinleyville, California, United States
6 AM20th Aug 2025
8 PM
5 AM21st Aug 2025
38AQI
19AQI
21AQI
18AQI
In the last 24 hours,
Mckinleyville's AQI reached its highest point of 38 at 12 PM during the Day, while the lowest point, 18, was recorded at 5 AM during the Night between 20th Aug and 21st Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Mckinleyville, California, United States
20°C14/28°C
21°C12/28°C
20°C15/25°C
20°C13/27°C
18°C10/27°C
18°C9/27°C
19°C10/28°C
19°C12/29°C
21°C11/29°C
20°C12/28°C
20°C11/27°C
19°C12/25°C
17°C13/22°C
17°C13/23°C
18°C9/26°C
18°C10/26°C
21°C15/27°C
23°C15/34°C
27°C17/38°C
27°C19/37°C
26°C15/36°C
25°C18/34°C
22°C14/30°C
19°C11/26°C
18°C11/25°C
18°C16/20°C
17°C16/18°C
17°C14/23°C
18°C9/27°C
20°C11/29°C
--°C/°C
27AQI
24AQI
25AQI
23AQI
2025 Days Vs Air Quality
Mckinleyville, California, United States
96%
222
4%
10
Total number of days with different AQI categories in last 233 days in 2025 (132 days remaining)
Under WHO’s Safe Air Quality Limits: 96%
Health Risk Level:
Very Low
In 2025, 96% of 233 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
Mckinleyville, California, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
32AQI
32AQI
34AQI
25AQI
31AQI
29AQI
29AQI
34AQI
38AQI
42AQI
32AQI
34AQI
34AQI
44AQI
51AQI
49AQI
44AQI
42AQI
51AQI
44AQI
53AQI
56AQI
58AQI
54AQI
44AQI
44AQI
56AQI
60AQI
64AQI
65AQI
49AQI
37AQI
38AQI
38AQI
39AQI
35AQI
42AQI
38AQI
36AQI
35AQI
32AQI
38AQI
46AQI
33AQI
30AQI
32AQI
30AQI
33AQI
37AQI
31AQI
31AQI
38AQI
44AQI
30AQI
30AQI
29AQI
36AQI
41AQI
41AQI
40AQI
28AQI
28AQI
31AQI
27AQI
22AQI
32AQI
37AQI
29AQI
31AQI
36AQI
24AQI
22AQI
23AQI
24AQI
21AQI
19AQI
23AQI
26AQI
20AQI
22AQI
20AQI
27AQI
27AQI
32AQI
32AQI
20AQI
23AQI
24AQI
28AQI
21AQI
23AQI
24AQI
25AQI
28AQI
27AQI
27AQI
17AQI
20AQI
23AQI
23AQI
21AQI
20AQI
26AQI
31AQI
35AQI
33AQI
27AQI
28AQI
27AQI
29AQI
23AQI
25AQI
30AQI
37AQI
25AQI
23AQI
22AQI
22AQI
24AQI
27AQI
28AQI
26AQI
19AQI
20AQI
21AQI
23AQI
26AQI
25AQI
26AQI
22AQI
20AQI
19AQI
18AQI
20AQI
22AQI
22AQI
19AQI
21AQI
20AQI
18AQI
23AQI
21AQI
21AQI
25AQI
25AQI
18AQI
21AQI
28AQI
21AQI
24AQI
30AQI
30AQI
29AQI
27AQI
25AQI
28AQI
28AQI
24AQI
27AQI
29AQI
30AQI
31AQI
34AQI
36AQI
32AQI
28AQI
24AQI
20AQI
20AQI
27AQI
25AQI
21AQI
19AQI
19AQI
25AQI
28AQI
21AQI
19AQI
20AQI
23AQI
26AQI
28AQI
27AQI
23AQI
25AQI
29AQI
29AQI
28AQI
28AQI
26AQI
29AQI
36AQI
36AQI
33AQI
35AQI
41AQI
37AQI
35AQI
32AQI
36AQI
30AQI
31AQI
26AQI
26AQI
25AQI
22AQI
19AQI
19AQI
22AQI
26AQI
28AQI
29AQI
28AQI
27AQI
26AQI
26AQI
27AQI
23AQI
21AQI
23AQI
26AQI
28AQI
33AQI
34AQI
35AQI
24AQI
25AQI
20AQI
18AQI
19AQI
21AQI
24AQI
44AQI
36AQI
26AQI
26AQI
22AQI
26AQI
29AQI
25AQI
No. of days
202529AQI
Highest AQI recorded in
January44AQI
Lowest AQI recorded in
May22AQI
202432AQI
Highest AQI recorded in
February50AQI
Lowest AQI recorded in
May21AQI
202333AQI
Highest AQI recorded in
August83AQI
Lowest AQI recorded in
April15AQI
202234AQI
Highest AQI recorded in
August75AQI
Lowest AQI recorded in
November28AQI
202155AQI
Highest AQI recorded in
August78AQI
Lowest AQI recorded in
October29AQI
2020117AQI
Highest AQI recorded in
October359AQI
Lowest AQI recorded in
November30AQI
Most & Least Polluted Years Over the Last 6 Years
Mckinleyville's annual 2025 AQI (29) shows an average percentage change of -31.05% (improved AQI) compared to previous years: 2020 (117), 2021 (55), 2022 (34), 2023 (33), 2024 (32).