Placerville, 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
Placerville, California, United States
AQI Trends: Highest and Lowest
Same Day Analysis (12th August ):
On this day, AQI across the 3 years varied significantly: 2025 ranks 1st highest AQI at 44 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 12th Aug - 13th Aug 2025
Placerville, California, United States
6 AM12th Aug 2025
8 PM
5 AM13th Aug 2025
52AQI
38AQI
44AQI
34AQI
In the last 24 hours,
Placerville's AQI reached its highest point of 52 at 11 AM during the Day, while the lowest point, 34, was recorded at 11 PM during the Night between 12th Aug and 13th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Placerville, California, United States
30°C24/37°C
26°C21/34°C
24°C19/32°C
25°C17/32°C
26°C19/33°C
26°C19/34°C
26°C20/33°C
22°C16/29°C
19°C14/24°C
21°C14/29°C
21°C16/29°C
21°C15/30°C
21°C15/29°C
22°C16/30°C
25°C19/32°C
26°C20/34°C
26°C19/33°C
26°C19/34°C
26°C20/34°C
26°C19/33°C
26°C19/33°C
24°C17/30°C
24°C17/31°C
27°C20/34°C
28°C21/35°C
30°C22/37°C
31°C23/38°C
31°C24/38°C
30°C22/38°C
29°C23/36°C
--°C/°C
37AQI
33AQI
33AQI
30AQI
2025 Days Vs Air Quality
Placerville, California, United States
98%
219
2%
5
Total number of days with different AQI categories in last 225 days in 2025 (140 days remaining)
Under WHO’s Safe Air Quality Limits: 98%
Health Risk Level:
Very Low
In 2025, 98% of 225 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
Placerville, California, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
36AQI
35AQI
32AQI
28AQI
28AQI
26AQI
26AQI
30AQI
33AQI
32AQI
32AQI
34AQI
28AQI
31AQI
36AQI
33AQI
37AQI
45AQI
44AQI
35AQI
31AQI
37AQI
40AQI
35AQI
40AQI
29AQI
32AQI
41AQI
48AQI
53AQI
49AQI
27AQI
24AQI
23AQI
26AQI
27AQI
29AQI
30AQI
26AQI
29AQI
33AQI
35AQI
37AQI
28AQI
27AQI
26AQI
29AQI
31AQI
32AQI
29AQI
27AQI
30AQI
29AQI
28AQI
28AQI
30AQI
29AQI
38AQI
35AQI
28AQI
26AQI
23AQI
36AQI
29AQI
24AQI
27AQI
25AQI
28AQI
28AQI
31AQI
26AQI
20AQI
18AQI
24AQI
24AQI
17AQI
17AQI
21AQI
24AQI
21AQI
18AQI
22AQI
20AQI
22AQI
24AQI
24AQI
27AQI
24AQI
29AQI
26AQI
21AQI
19AQI
17AQI
20AQI
18AQI
23AQI
22AQI
23AQI
24AQI
26AQI
30AQI
27AQI
28AQI
26AQI
29AQI
30AQI
32AQI
31AQI
20AQI
25AQI
24AQI
28AQI
31AQI
34AQI
28AQI
33AQI
17AQI
17AQI
21AQI
31AQI
25AQI
26AQI
26AQI
22AQI
18AQI
21AQI
26AQI
29AQI
27AQI
25AQI
26AQI
23AQI
27AQI
18AQI
18AQI
20AQI
28AQI
25AQI
22AQI
19AQI
25AQI
27AQI
23AQI
28AQI
29AQI
22AQI
23AQI
30AQI
29AQI
32AQI
32AQI
35AQI
30AQI
33AQI
36AQI
32AQI
31AQI
34AQI
34AQI
31AQI
37AQI
39AQI
38AQI
36AQI
30AQI
28AQI
29AQI
32AQI
33AQI
33AQI
36AQI
35AQI
32AQI
30AQI
36AQI
38AQI
37AQI
43AQI
38AQI
38AQI
33AQI
35AQI
32AQI
34AQI
36AQI
36AQI
27AQI
25AQI
31AQI
27AQI
35AQI
54AQI
55AQI
55AQI
53AQI
50AQI
41AQI
38AQI
37AQI
32AQI
29AQI
29AQI
25AQI
20AQI
20AQI
21AQI
22AQI
21AQI
23AQI
25AQI
28AQI
26AQI
28AQI
33AQI
43AQI
45AQI
41AQI
36AQI
33AQI
39AQI
37AQI
38AQI
40AQI
44AQI
35AQI
29AQI
24AQI
25AQI
25AQI
34AQI
33AQI
38AQI
No. of days
202530AQI
Highest AQI recorded in
August38AQI
Lowest AQI recorded in
March24AQI
202431AQI
Highest AQI recorded in
July38AQI
Lowest AQI recorded in
March4AQI
202324AQI
Highest AQI recorded in
September40AQI
Lowest AQI recorded in
May13AQI
202231AQI
Highest AQI recorded in
December39AQI
Lowest AQI recorded in
April8AQI
202145AQI
Highest AQI recorded in
August62AQI
Lowest AQI recorded in
November28AQI
202082AQI
Highest AQI recorded in
August110AQI
Lowest AQI recorded in
November29AQI
Most & Least Polluted Years Over the Last 6 Years
Placerville's annual 2025 AQI (30) shows an average percentage change of -15.9% (improved AQI) compared to previous years: 2020 (82), 2021 (45), 2022 (31), 2023 (24), 2024 (31).