Crescent City, 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
Crescent City, California, United States
AQI Trends: Highest and Lowest
Same Day Analysis (15th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 46 of Good air quality on the same day.
Day & Night AQI Trend: 15th Aug - 16th Aug 2026
Crescent City, California, United States
6 AM15th Aug 2026
8 PM
5 AM16th Aug 2026
54AQI
39AQI
58AQI
48AQI
In the last 24 hours,
Crescent City's AQI reached its highest point of 58 at 5 AM during the Night, while the lowest point, 39, was recorded at 3 PM during the Day between 15th Aug and 16th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Crescent City, California, United States
15°C11/19°C
15°C11/19°C
16°C12/25°C
18°C11/25°C
18°C15/22°C
16°C14/20°C
15°C11/19°C
16°C11/20°C
16°C13/19°C
15°C11/19°C
17°C13/21°C
16°C12/19°C
15°C11/21°C
15°C11/19°C
17°C13/22°C
18°C12/26°C
19°C11/29°C
18°C13/24°C
15°C13/17°C
15°C12/19°C
14°C11/18°C
15°C12/19°C
14°C11/19°C
15°C10/22°C
15°C10/26°C
16°C12/23°C
14°C12/17°C
15°C13/17°C
15°C11/20°C
16°C11/22°C
57AQI
49AQI
52AQI
49AQI
2026 Days Vs Air Quality
Crescent City, California, United States
87%
195
13%
29
Total number of days with different AQI categories in last 228 days in 2026 (137 days remaining)
Under WHO’s Safe Air Quality Limits: 87%
Health Risk Level:
Low
In 2026, 87% of 228 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
Crescent City, California, United States
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
62AQI (US)
54AQI (US)
20AQI (US)
10AQI (US)
20AQI (US)
26AQI (US)
20AQI (US)
30AQI (US)
43AQI (US)
56AQI (US)
47AQI (US)
36AQI (US)
41AQI (US)
45AQI (US)
42AQI (US)
43AQI (US)
47AQI (US)
62AQI (US)
56AQI (US)
58AQI (US)
57AQI (US)
38AQI (US)
36AQI (US)
34AQI (US)
28AQI (US)
30AQI (US)
30AQI (US)
37AQI (US)
33AQI (US)
44AQI (US)
30AQI (US)
32AQI (US)
36AQI (US)
32AQI (US)
32AQI (US)
36AQI (US)
33AQI (US)
33AQI (US)
38AQI (US)
33AQI (US)
34AQI (US)
28AQI (US)
28AQI (US)
28AQI (US)
30AQI (US)
39AQI (US)
34AQI (US)
37AQI (US)
40AQI (US)
31AQI (US)
33AQI (US)
34AQI (US)
36AQI (US)
35AQI (US)
36AQI (US)
32AQI (US)
25AQI (US)
18AQI (US)
26AQI (US)
41AQI (US)
50AQI (US)
43AQI (US)
35AQI (US)
23AQI (US)
18AQI (US)
24AQI (US)
29AQI (US)
19AQI (US)
23AQI (US)
26AQI (US)
22AQI (US)
33AQI (US)
29AQI (US)
24AQI (US)
26AQI (US)
26AQI (US)
26AQI (US)
27AQI (US)
28AQI (US)
26AQI (US)
27AQI (US)
25AQI (US)
24AQI (US)
23AQI (US)
23AQI (US)
21AQI (US)
23AQI (US)
18AQI (US)
18AQI (US)
19AQI (US)
26AQI (US)
18AQI (US)
21AQI (US)
22AQI (US)
24AQI (US)
26AQI (US)
21AQI (US)
25AQI (US)
26AQI (US)
29AQI (US)
32AQI (US)
20AQI (US)
26AQI (US)
24AQI (US)
26AQI (US)
22AQI (US)
30AQI (US)
32AQI (US)
24AQI (US)
27AQI (US)
20AQI (US)
20AQI (US)
16AQI (US)
18AQI (US)
18AQI (US)
20AQI (US)
23AQI (US)
22AQI (US)
19AQI (US)
24AQI (US)
19AQI (US)
24AQI (US)
29AQI (US)
16AQI (US)
18AQI (US)
21AQI (US)
26AQI (US)
19AQI (US)
22AQI (US)
22AQI (US)
18AQI (US)
36AQI (US)
48AQI (US)
57AQI (US)
52AQI (US)
51AQI (US)
48AQI (US)
41AQI (US)
46AQI (US)
48AQI (US)
40AQI (US)
42AQI (US)
22AQI (US)
32AQI (US)
24AQI (US)
26AQI (US)
26AQI (US)
26AQI (US)
30AQI (US)
19AQI (US)
20AQI (US)
19AQI (US)
16AQI (US)
14AQI (US)
17AQI (US)
24AQI (US)
22AQI (US)
21AQI (US)
20AQI (US)
24AQI (US)
24AQI (US)
20AQI (US)
26AQI (US)
22AQI (US)
14AQI (US)
15AQI (US)
18AQI (US)
19AQI (US)
20AQI (US)
15AQI (US)
18AQI (US)
18AQI (US)
17AQI (US)
26AQI (US)
20AQI (US)
18AQI (US)
27AQI (US)
32AQI (US)
31AQI (US)
28AQI (US)
19AQI (US)
22AQI (US)
18AQI (US)
20AQI (US)
12AQI (US)
19AQI (US)
20AQI (US)
18AQI (US)
30AQI (US)
14AQI (US)
17AQI (US)
20AQI (US)
14AQI (US)
14AQI (US)
58AQI (US)
53AQI (US)
50AQI (US)
56AQI (US)
50AQI (US)
61AQI (US)
44AQI (US)
57AQI (US)
56AQI (US)
54AQI (US)
52AQI (US)
60AQI (US)
52AQI (US)
53AQI (US)
42AQI (US)
45AQI (US)
48AQI (US)
54AQI (US)
58AQI (US)
50AQI (US)
58AQI (US)
62AQI (US)
52AQI (US)
48AQI (US)
53AQI (US)
48AQI (US)
54AQI (US)
57AQI (US)
48AQI (US)
46AQI (US)
39AQI (US)
32AQI (US)
26AQI (US)
24AQI (US)
31AQI (US)
21AQI (US)
36AQI (US)
52AQI (US)
No. of days
202631AQI (US)
Highest AQI (US) recorded in
August52AQI (US)
Lowest AQI (US) recorded in
June21AQI (US)
202535AQI (US)
Highest AQI (US) recorded in
November52AQI (US)
Lowest AQI (US) recorded in
August26AQI (US)
202432AQI (US)
Highest AQI (US) recorded in
December49AQI (US)
Lowest AQI (US) recorded in
March13AQI (US)
202352AQI (US)
Highest AQI (US) recorded in
September65AQI (US)
Lowest AQI (US) recorded in
December37AQI (US)
202240AQI (US)
Highest AQI (US) recorded in
September42AQI (US)
Lowest AQI (US) recorded in
August27AQI (US)
202142AQI (US)
Highest AQI (US) recorded in
September47AQI (US)
Lowest AQI (US) recorded in
July37AQI (US)
202082AQI (US)
Highest AQI (US) recorded in
October111AQI (US)
Lowest AQI (US) recorded in
September79AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Crescent City's annual 2026 AQI (US) (31) shows an average percentage change of -27.6% (improved AQI (US)) compared to previous years: 2020 (82), 2021 (42), 2022 (40), 2023 (52), 2024 (32), 2025 (35).