South Lake Tahoe, California, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
South Lake Tahoe, California, United States
AQI Trends: Highest and Lowest
Same Day Analysis (25th October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 32 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 25th Oct - 26th Oct 2025
South Lake Tahoe, California, United States
7 AM25th Oct 2025
6 PM
6 AM26th Oct 2025
52AQI
11AQI
53AQI
11AQI
In the last 24 hours,
South Lake Tahoe's AQI reached its highest point of 53 at 7 PM during the Night, while the lowest point, undefined, was recorded at 6 AM during the Night between 25th Oct and 26th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
South Lake Tahoe, California, United States
18°C13/25°C
16°C11/23°C
15°C11/22°C
12°C7/16°C
8°C4/12°C
10°C4/15°C
10°C6/16°C
6°C3/9°C
9°C3/15°C
7°C1/13°C
9°C2/18°C
11°C5/19°C
13°C6/22°C
12°C5/21°C
8°C4/14°C
6°C0/12°C
6°C-2/17°C
4°C-1/8°C
3°C1/5°C
3°C-2/8°C
4°C-6/13°C
8°C0/18°C
11°C4/20°C
10°C4/19°C
8°C1/17°C
12°C3/21°C
9°C5/15°C
11°C5/17°C
11°C6/18°C
5°C3/10°C
--°C/°C
31AQI
19AQI
26AQI
16AQI
2025 Days Vs Air Quality
South Lake Tahoe, California, United States
98%
209
2%
5
Total number of days with different AQI categories in last 299 days in 2025 (66 days remaining)
Under WHO’s Safe Air Quality Limits: 98%
Health Risk Level:
Very Low
In 2025, 98% of 299 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
South Lake Tahoe, California, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
21AQI
25AQI
25AQI
36AQI
35AQI
29AQI
23AQI
18AQI
22AQI
20AQI
20AQI
24AQI
29AQI
25AQI
34AQI
38AQI
30AQI
26AQI
30AQI
25AQI
25AQI
23AQI
27AQI
23AQI
23AQI
27AQI
24AQI
29AQI
32AQI
35AQI
36AQI
22AQI
20AQI
27AQI
24AQI
37AQI
24AQI
25AQI
31AQI
26AQI
22AQI
24AQI
20AQI
27AQI
29AQI
27AQI
29AQI
26AQI
25AQI
20AQI
26AQI
31AQI
28AQI
28AQI
28AQI
22AQI
26AQI
29AQI
26AQI
27AQI
31AQI
25AQI
32AQI
30AQI
30AQI
34AQI
35AQI
28AQI
27AQI
29AQI
30AQI
34AQI
35AQI
42AQI
45AQI
39AQI
37AQI
35AQI
32AQI
32AQI
29AQI
27AQI
29AQI
30AQI
37AQI
35AQI
38AQI
41AQI
36AQI
27AQI
24AQI
30AQI
28AQI
30AQI
37AQI
38AQI
39AQI
33AQI
28AQI
31AQI
25AQI
29AQI
27AQI
26AQI
27AQI
27AQI
29AQI
46AQI
50AQI
51AQI
47AQI
33AQI
39AQI
39AQI
29AQI
25AQI
24AQI
20AQI
17AQI
20AQI
30AQI
27AQI
26AQI
30AQI
30AQI
31AQI
28AQI
32AQI
29AQI
26AQI
29AQI
28AQI
27AQI
27AQI
26AQI
26AQI
27AQI
25AQI
47AQI
46AQI
36AQI
35AQI
35AQI
32AQI
18AQI
20AQI
20AQI
20AQI
28AQI
36AQI
33AQI
29AQI
31AQI
33AQI
28AQI
28AQI
35AQI
29AQI
39AQI
37AQI
30AQI
34AQI
31AQI
49AQI
52AQI
51AQI
83AQI
30AQI
19AQI
17AQI
17AQI
16AQI
23AQI
21AQI
22AQI
25AQI
24AQI
21AQI
22AQI
19AQI
22AQI
18AQI
21AQI
30AQI
28AQI
28AQI
31AQI
26AQI
20AQI
13AQI
10AQI
15AQI
19AQI
14AQI
11AQI
21AQI
26AQI
34AQI
27AQI
11AQI
16AQI
12AQI
14AQI
23AQI
21AQI
25AQI
23AQI
18AQI
31AQI
31AQI
53AQI
22AQI
26AQI
32AQI
29AQI
27AQI
27AQI
33AQI
31AQI
30AQI
29AQI
22AQI
No. of days
202529AQI
Highest AQI recorded in
June33AQI
Lowest AQI recorded in
October22AQI
Most & Least Polluted Years Over the Last 1 Years
South Lake Tahoe's annual 2025 AQI (29) shows an average percentage change of NaN% (improved AQI) compared to previous years: .