Redding Health Department, Redding, 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
Redding Health Department, Redding, California, United States
AQI Trends: Highest and Lowest
Same Day Analysis (22nd October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 40 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 22nd Oct - 23rd Oct 2025
Redding Health Department, Redding, California, United States
7 AM22nd Oct 2025
6 PM
6 AM23rd Oct 2025
53AQI
30AQI
60AQI
36AQI
In the last 24 hours,
Redding Health Department's AQI reached its highest point of 60 at 1 AM during the Night, while the lowest point, undefined, was recorded at 6 AM during the Night between 22nd Oct and 23rd Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Redding Health Department, Redding, California, United States
30°C19/40°C
27°C19/36°C
26°C18/36°C
29°C21/37°C
26°C18/35°C
21°C17/27°C
18°C16/20°C
17°C16/21°C
16°C14/18°C
18°C14/24°C
19°C13/27°C
20°C14/28°C
22°C16/30°C
23°C15/32°C
23°C13/33°C
22°C12/31°C
17°C16/21°C
16°C12/21°C
14°C8/23°C
16°C10/25°C
12°C8/14°C
15°C9/23°C
12°C9/16°C
17°C8/28°C
21°C14/31°C
18°C11/29°C
18°C10/27°C
21°C14/30°C
20°C11/30°C
18°C11/29°C
--°C/°C
39AQI
30AQI
41AQI
32AQI
2025 Days Vs Air Quality
Redding Health Department, Redding, California, United States
97%
285
3%
10
Total number of days with different AQI categories in last 296 days in 2025 (69 days remaining)
Under WHO’s Safe Air Quality Limits: 97%
Health Risk Level:
Very Low
In 2025, 97% of 296 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
Redding Health Department, Redding, California, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
46AQI
26AQI
40AQI
28AQI
27AQI
29AQI
26AQI
27AQI
29AQI
43AQI
29AQI
26AQI
25AQI
28AQI
48AQI
46AQI
37AQI
40AQI
46AQI
33AQI
40AQI
39AQI
43AQI
44AQI
36AQI
34AQI
40AQI
50AQI
56AQI
60AQI
55AQI
33AQI
25AQI
25AQI
24AQI
26AQI
31AQI
27AQI
25AQI
26AQI
27AQI
27AQI
31AQI
31AQI
26AQI
28AQI
29AQI
35AQI
30AQI
27AQI
24AQI
24AQI
32AQI
28AQI
31AQI
27AQI
26AQI
27AQI
28AQI
32AQI
26AQI
26AQI
32AQI
24AQI
22AQI
27AQI
28AQI
33AQI
27AQI
32AQI
25AQI
25AQI
22AQI
28AQI
32AQI
21AQI
26AQI
25AQI
19AQI
19AQI
21AQI
18AQI
21AQI
25AQI
25AQI
17AQI
24AQI
20AQI
24AQI
21AQI
23AQI
21AQI
17AQI
23AQI
21AQI
25AQI
23AQI
18AQI
18AQI
21AQI
26AQI
19AQI
23AQI
30AQI
30AQI
40AQI
28AQI
28AQI
24AQI
30AQI
22AQI
23AQI
25AQI
44AQI
33AQI
29AQI
22AQI
26AQI
26AQI
25AQI
25AQI
22AQI
19AQI
20AQI
20AQI
20AQI
19AQI
20AQI
21AQI
30AQI
21AQI
19AQI
17AQI
19AQI
21AQI
21AQI
20AQI
20AQI
18AQI
17AQI
25AQI
20AQI
24AQI
23AQI
31AQI
22AQI
24AQI
31AQI
25AQI
26AQI
30AQI
27AQI
23AQI
27AQI
25AQI
27AQI
36AQI
39AQI
38AQI
38AQI
39AQI
35AQI
40AQI
41AQI
35AQI
29AQI
28AQI
25AQI
27AQI
26AQI
26AQI
20AQI
19AQI
20AQI
24AQI
28AQI
28AQI
29AQI
22AQI
26AQI
34AQI
35AQI
28AQI
28AQI
27AQI
31AQI
31AQI
31AQI
32AQI
29AQI
35AQI
51AQI
56AQI
51AQI
54AQI
54AQI
47AQI
42AQI
30AQI
29AQI
29AQI
31AQI
26AQI
26AQI
27AQI
25AQI
28AQI
27AQI
27AQI
30AQI
35AQI
33AQI
37AQI
33AQI
31AQI
27AQI
29AQI
30AQI
24AQI
26AQI
27AQI
29AQI
43AQI
43AQI
44AQI
31AQI
31AQI
22AQI
25AQI
20AQI
22AQI
23AQI
24AQI
34AQI
44AQI
45AQI
39AQI
42AQI
45AQI
42AQI
35AQI
35AQI
30AQI
29AQI
42AQI
48AQI
44AQI
46AQI
40AQI
42AQI
36AQI
22AQI
22AQI
25AQI
32AQI
42AQI
37AQI
23AQI
26AQI
29AQI
30AQI
39AQI
41AQI
35AQI
26AQI
24AQI
29AQI
53AQI
36AQI
35AQI
45AQI
34AQI
36AQI
24AQI
25AQI
38AQI
28AQI
32AQI
21AQI
34AQI
45AQI
51AQI
48AQI
24AQI
32AQI
31AQI
35AQI
27AQI
38AQI
46AQI
49AQI
49AQI
30AQI
36AQI
40AQI
38AQI
28AQI
25AQI
25AQI
22AQI
29AQI
34AQI
33AQI
35AQI
36AQI
No. of days
202530AQI
Highest AQI recorded in
January38AQI
Lowest AQI recorded in
May22AQI
202433AQI
Highest AQI recorded in
July47AQI
Lowest AQI recorded in
March24AQI
202335AQI
Highest AQI recorded in
August48AQI
Lowest AQI recorded in
January30AQI
202232AQI
Highest AQI recorded in
August44AQI
Lowest AQI recorded in
March28AQI
202143AQI
Highest AQI recorded in
August126AQI
Lowest AQI recorded in
February25AQI
202059AQI
Highest AQI recorded in
October126AQI
Lowest AQI recorded in
November36AQI
Most & Least Polluted Years Over the Last 6 Years
Redding Health Department's annual 2025 AQI (30) shows an average percentage change of -21.1% (improved AQI) compared to previous years: 2020 (59), 2021 (43), 2022 (32), 2023 (35), 2024 (33).