North Fair Oaks, 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
North Fair Oaks, California, United States
AQI Trends: Highest and Lowest
Same Day Analysis (27th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 22 of Good air quality, showing improvement over 2024, 2023 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 27th Oct - 28th Oct 2025
North Fair Oaks, California, United States
7 AM27th Oct 2025
6 PM
6 AM28th Oct 2025
43AQI
11AQI
20AQI
11AQI
In the last 24 hours,
North Fair Oaks's AQI reached its highest point of 43 at 11 AM during the Day, while the lowest point, 11, was recorded at 11 PM during the Night between 27th Oct and 28th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
North Fair Oaks, California, United States
19°C15/24°C
21°C17/27°C
20°C16/27°C
20°C16/26°C
20°C16/25°C
17°C14/22°C
17°C11/28°C
19°C12/29°C
21°C13/32°C
22°C15/33°C
19°C14/25°C
17°C13/22°C
18°C12/25°C
17°C13/24°C
17°C11/25°C
14°C10/19°C
13°C9/20°C
14°C11/18°C
15°C10/21°C
17°C10/25°C
19°C12/28°C
17°C12/25°C
20°C12/30°C
19°C13/28°C
16°C13/21°C
15°C10/21°C
15°C11/21°C
15°C11/20°C
15°C11/22°C
15°C10/20°C
--°C/°C
44AQI
33AQI
41AQI
34AQI
2025 Days Vs Air Quality
North Fair Oaks, California, United States
97%
291
3%
9
Total number of days with different AQI categories in last 301 days in 2025 (64 days remaining)
Under WHO’s Safe Air Quality Limits: 97%
Health Risk Level:
Very Low
In 2025, 97% of 301 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
North Fair Oaks, California, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
56AQI
41AQI
42AQI
34AQI
35AQI
35AQI
26AQI
26AQI
39AQI
41AQI
37AQI
28AQI
34AQI
31AQI
44AQI
49AQI
46AQI
48AQI
52AQI
40AQI
39AQI
46AQI
47AQI
60AQI
47AQI
41AQI
38AQI
40AQI
36AQI
36AQI
35AQI
32AQI
23AQI
23AQI
22AQI
25AQI
24AQI
25AQI
24AQI
31AQI
29AQI
28AQI
24AQI
26AQI
30AQI
30AQI
29AQI
22AQI
25AQI
25AQI
28AQI
27AQI
34AQI
33AQI
28AQI
27AQI
29AQI
35AQI
45AQI
35AQI
27AQI
24AQI
25AQI
25AQI
27AQI
29AQI
30AQI
33AQI
29AQI
27AQI
27AQI
24AQI
29AQI
61AQI
36AQI
16AQI
22AQI
27AQI
21AQI
23AQI
21AQI
25AQI
23AQI
31AQI
25AQI
20AQI
23AQI
21AQI
18AQI
19AQI
19AQI
19AQI
20AQI
21AQI
20AQI
20AQI
16AQI
16AQI
19AQI
20AQI
18AQI
28AQI
33AQI
33AQI
25AQI
29AQI
22AQI
25AQI
33AQI
31AQI
38AQI
34AQI
37AQI
32AQI
19AQI
17AQI
26AQI
26AQI
33AQI
37AQI
35AQI
38AQI
36AQI
39AQI
34AQI
45AQI
41AQI
30AQI
35AQI
32AQI
23AQI
19AQI
19AQI
29AQI
37AQI
41AQI
22AQI
25AQI
29AQI
23AQI
39AQI
32AQI
25AQI
26AQI
19AQI
18AQI
28AQI
24AQI
18AQI
31AQI
49AQI
50AQI
43AQI
36AQI
52AQI
34AQI
26AQI
24AQI
18AQI
17AQI
21AQI
39AQI
42AQI
45AQI
41AQI
43AQI
38AQI
33AQI
30AQI
39AQI
38AQI
35AQI
35AQI
36AQI
24AQI
20AQI
21AQI
30AQI
36AQI
28AQI
23AQI
25AQI
25AQI
33AQI
29AQI
31AQI
31AQI
24AQI
20AQI
17AQI
22AQI
30AQI
34AQI
28AQI
21AQI
17AQI
18AQI
17AQI
18AQI
18AQI
21AQI
20AQI
14AQI
15AQI
15AQI
15AQI
15AQI
15AQI
17AQI
21AQI
21AQI
22AQI
21AQI
21AQI
30AQI
34AQI
25AQI
33AQI
25AQI
31AQI
38AQI
28AQI
26AQI
28AQI
23AQI
19AQI
36AQI
17AQI
16AQI
19AQI
21AQI
27AQI
43AQI
48AQI
32AQI
25AQI
31AQI
34AQI
41AQI
37AQI
26AQI
31AQI
37AQI
35AQI
42AQI
30AQI
27AQI
24AQI
27AQI
21AQI
20AQI
16AQI
17AQI
29AQI
28AQI
29AQI
19AQI
20AQI
31AQI
31AQI
34AQI
36AQI
37AQI
30AQI
29AQI
34AQI
43AQI
43AQI
44AQI
47AQI
34AQI
28AQI
24AQI
25AQI
27AQI
39AQI
49AQI
48AQI
45AQI
47AQI
48AQI
37AQI
36AQI
32AQI
31AQI
47AQI
29AQI
39AQI
43AQI
47AQI
52AQI
56AQI
52AQI
53AQI
35AQI
39AQI
29AQI
24AQI
27AQI
22AQI
40AQI
28AQI
27AQI
26AQI
30AQI
33AQI
22AQI
29AQI
30AQI
39AQI
No. of days
202530AQI
Highest AQI recorded in
January40AQI
Lowest AQI recorded in
July22AQI
202431AQI
Highest AQI recorded in
December44AQI
Lowest AQI recorded in
August25AQI
202339AQI
Highest AQI recorded in
April70AQI
Lowest AQI recorded in
January28AQI
202233AQI
Highest AQI recorded in
January46AQI
Lowest AQI recorded in
July21AQI
202131AQI
Highest AQI recorded in
August38AQI
Lowest AQI recorded in
October25AQI
202039AQI
Highest AQI recorded in
September70AQI
Lowest AQI recorded in
May26AQI
Most & Least Polluted Years Over the Last 6 Years
North Fair Oaks's annual 2025 AQI (30) shows an average percentage change of -11.2% (improved AQI) compared to previous years: 2020 (39), 2021 (31), 2022 (33), 2023 (39), 2024 (31).