Willow Creek, 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!
July Air Quality Analysis
Willow Creek, Mckinleyville, California, United States
AQI Trends: Highest and Lowest
Same Day Analysis (12th July):
On this day, AQI across the 3 years varied significantly: 2026 ranks 3rd highest AQI at 14 of Good air quality, showing improvement over 2025 and 2024 on the same day.
Day & Night AQI Trend: 12th Jul - 13th Jul 2026
Willow Creek, Mckinleyville, California, United States
5 AM12th Jul 2026
8 PM
4 AM13th Jul 2026
30AQI
8AQI
19AQI
14AQI
In the last 24 hours,
Willow Creek's AQI reached its highest point of 30 at 5 AM during the Day, while the lowest point, 8, was recorded at 4 PM during the Day between 12th Jul and 13th Jul 2026.
Day & Night AQI Trend : Jun - Jul 2026
Willow Creek, Mckinleyville, California, United States
28°C22/37°C
28°C19/36°C
29°C23/36°C
28°C20/36°C
25°C18/33°C
20°C15/27°C
20°C14/27°C
22°C12/31°C
25°C17/34°C
25°C17/33°C
24°C16/32°C
22°C16/29°C
17°C15/21°C
15°C11/20°C
17°C10/24°C
20°C13/27°C
20°C12/27°C
21°C13/29°C
22°C14/30°C
23°C14/32°C
24°C15/34°C
26°C20/35°C
25°C18/33°C
21°C12/30°C
22°C11/31°C
24°C15/33°C
22°C13/30°C
20°C11/29°C
23°C14/33°C
25°C15/36°C
25AQI
20AQI
21AQI
19AQI
2026 Days Vs Air Quality
Willow Creek, Mckinleyville, California, United States
94%
179
6%
11
Total number of days with different AQI categories in last 194 days in 2026 (171 days remaining)
Under WHO’s Safe Air Quality Limits: 94%
Health Risk Level:
Very Low
In 2026, 94% of 194 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
Willow Creek, Mckinleyville, California, United States
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
51AQI (US)
37AQI (US)
18AQI (US)
11AQI (US)
19AQI (US)
25AQI (US)
20AQI (US)
30AQI (US)
37AQI (US)
52AQI (US)
44AQI (US)
45AQI (US)
47AQI (US)
55AQI (US)
45AQI (US)
38AQI (US)
44AQI (US)
55AQI (US)
46AQI (US)
52AQI (US)
59AQI (US)
38AQI (US)
38AQI (US)
35AQI (US)
33AQI (US)
38AQI (US)
30AQI (US)
38AQI (US)
36AQI (US)
49AQI (US)
32AQI (US)
32AQI (US)
40AQI (US)
35AQI (US)
33AQI (US)
44AQI (US)
39AQI (US)
36AQI (US)
39AQI (US)
37AQI (US)
40AQI (US)
32AQI (US)
29AQI (US)
29AQI (US)
31AQI (US)
39AQI (US)
35AQI (US)
37AQI (US)
39AQI (US)
33AQI (US)
33AQI (US)
36AQI (US)
37AQI (US)
36AQI (US)
39AQI (US)
35AQI (US)
27AQI (US)
24AQI (US)
29AQI (US)
39AQI (US)
55AQI (US)
43AQI (US)
41AQI (US)
30AQI (US)
21AQI (US)
26AQI (US)
32AQI (US)
27AQI (US)
29AQI (US)
32AQI (US)
23AQI (US)
36AQI (US)
31AQI (US)
25AQI (US)
26AQI (US)
26AQI (US)
28AQI (US)
33AQI (US)
33AQI (US)
29AQI (US)
28AQI (US)
33AQI (US)
27AQI (US)
27AQI (US)
24AQI (US)
21AQI (US)
24AQI (US)
18AQI (US)
19AQI (US)
19AQI (US)
26AQI (US)
20AQI (US)
22AQI (US)
28AQI (US)
26AQI (US)
28AQI (US)
24AQI (US)
29AQI (US)
25AQI (US)
30AQI (US)
29AQI (US)
19AQI (US)
24AQI (US)
24AQI (US)
28AQI (US)
22AQI (US)
30AQI (US)
33AQI (US)
24AQI (US)
25AQI (US)
20AQI (US)
22AQI (US)
17AQI (US)
25AQI (US)
19AQI (US)
23AQI (US)
25AQI (US)
24AQI (US)
21AQI (US)
25AQI (US)
23AQI (US)
34AQI (US)
34AQI (US)
18AQI (US)
19AQI (US)
23AQI (US)
27AQI (US)
20AQI (US)
24AQI (US)
23AQI (US)
19AQI (US)
42AQI (US)
47AQI (US)
57AQI (US)
55AQI (US)
54AQI (US)
52AQI (US)
41AQI (US)
47AQI (US)
50AQI (US)
44AQI (US)
42AQI (US)
22AQI (US)
34AQI (US)
24AQI (US)
26AQI (US)
26AQI (US)
26AQI (US)
33AQI (US)
20AQI (US)
22AQI (US)
19AQI (US)
16AQI (US)
14AQI (US)
17AQI (US)
24AQI (US)
21AQI (US)
18AQI (US)
19AQI (US)
25AQI (US)
25AQI (US)
20AQI (US)
26AQI (US)
23AQI (US)
15AQI (US)
18AQI (US)
18AQI (US)
19AQI (US)
21AQI (US)
15AQI (US)
19AQI (US)
18AQI (US)
17AQI (US)
26AQI (US)
23AQI (US)
18AQI (US)
28AQI (US)
32AQI (US)
31AQI (US)
28AQI (US)
18AQI (US)
22AQI (US)
18AQI (US)
20AQI (US)
12AQI (US)
19AQI (US)
20AQI (US)
18AQI (US)
30AQI (US)
14AQI (US)
39AQI (US)
35AQI (US)
29AQI (US)
25AQI (US)
33AQI (US)
21AQI (US)
21AQI (US)
No. of days
202630AQI (US)
Highest AQI (US) recorded in
January39AQI (US)
Lowest AQI (US) recorded in
July21AQI (US)
202533AQI (US)
Highest AQI (US) recorded in
November48AQI (US)
Lowest AQI (US) recorded in
May23AQI (US)
202433AQI (US)
Highest AQI (US) recorded in
March46AQI (US)
Lowest AQI (US) recorded in
May21AQI (US)
202346AQI (US)
Highest AQI (US) recorded in
August95AQI (US)
Lowest AQI (US) recorded in
December45AQI (US)
2020148AQI (US)
Highest AQI (US) recorded in
September148AQI (US)
Lowest AQI (US) recorded in
September148AQI (US)
Most & Least Polluted Years Over the Last 5 Years
Willow Creek's annual 2026 AQI (US) (30) shows an average percentage change of -33.1% (improved AQI (US)) compared to previous years: 2020 (148), 2023 (46), 2024 (33), 2025 (33).