Red Bluff, Red Bluff, California, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
September Air Quality Analysis
Red Bluff, Red Bluff, California, United States
AQI Trends: Highest and Lowest
Same Day Analysis (7th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 40 of Good air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 7th Sep - 8th Sep 2025
Red Bluff, Red Bluff, California, United States
6 AM7th Sep 2025
7 PM
5 AM8th Sep 2025
44AQI
26AQI
42AQI
27AQI
In the last 24 hours,
Red Bluff's AQI reached its highest point of 44 at 7 AM during the Day, while the lowest point, 26, was recorded at 6 PM during the Day between 7th Sep and 8th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Red Bluff, Red Bluff, California, United States
30°C23/37°C
30°C22/37°C
31°C24/38°C
30°C23/37°C
27°C20/34°C
25°C18/32°C
26°C19/33°C
24°C19/30°C
23°C19/28°C
20°C13/28°C
23°C16/30°C
26°C18/33°C
29°C21/37°C
29°C22/37°C
30°C25/38°C
29°C23/36°C
29°C22/36°C
27°C22/34°C
25°C20/32°C
25°C19/33°C
26°C20/33°C
26°C21/33°C
27°C22/33°C
27°C21/34°C
28°C23/35°C
27°C19/34°C
26°C21/33°C
24°C17/31°C
22°C16/29°C
20°C14/26°C
--°C/°C
40AQI
35AQI
36AQI
31AQI
2025 Days Vs Air Quality
Red Bluff, Red Bluff, California, United States
96%
240
4%
10
Total number of days with different AQI categories in last 251 days in 2025 (114 days remaining)
Under WHO’s Safe Air Quality Limits: 96%
Health Risk Level:
Very Low
In 2025, 96% of 251 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
Red Bluff, Red Bluff, California, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
62AQI
48AQI
38AQI
27AQI
38AQI
31AQI
29AQI
32AQI
36AQI
42AQI
31AQI
33AQI
33AQI
38AQI
44AQI
39AQI
38AQI
44AQI
46AQI
37AQI
43AQI
45AQI
48AQI
53AQI
40AQI
40AQI
44AQI
52AQI
56AQI
61AQI
51AQI
37AQI
25AQI
27AQI
25AQI
26AQI
35AQI
28AQI
29AQI
27AQI
26AQI
33AQI
39AQI
33AQI
24AQI
25AQI
31AQI
28AQI
32AQI
30AQI
28AQI
27AQI
34AQI
26AQI
29AQI
25AQI
29AQI
27AQI
30AQI
31AQI
23AQI
25AQI
31AQI
25AQI
21AQI
25AQI
29AQI
28AQI
30AQI
27AQI
21AQI
20AQI
22AQI
22AQI
22AQI
20AQI
21AQI
22AQI
17AQI
19AQI
19AQI
19AQI
20AQI
23AQI
26AQI
19AQI
21AQI
21AQI
26AQI
21AQI
22AQI
22AQI
19AQI
22AQI
22AQI
24AQI
18AQI
19AQI
19AQI
24AQI
27AQI
22AQI
23AQI
25AQI
27AQI
30AQI
26AQI
26AQI
20AQI
26AQI
22AQI
25AQI
29AQI
36AQI
28AQI
26AQI
22AQI
20AQI
21AQI
25AQI
23AQI
24AQI
22AQI
17AQI
18AQI
19AQI
24AQI
27AQI
27AQI
25AQI
22AQI
18AQI
15AQI
16AQI
18AQI
19AQI
19AQI
19AQI
19AQI
17AQI
20AQI
20AQI
22AQI
27AQI
26AQI
19AQI
20AQI
28AQI
24AQI
24AQI
25AQI
27AQI
23AQI
27AQI
25AQI
28AQI
29AQI
33AQI
31AQI
32AQI
33AQI
34AQI
34AQI
35AQI
29AQI
24AQI
23AQI
24AQI
23AQI
23AQI
30AQI
26AQI
23AQI
20AQI
25AQI
31AQI
28AQI
29AQI
25AQI
25AQI
29AQI
34AQI
27AQI
29AQI
28AQI
31AQI
30AQI
32AQI
30AQI
27AQI
41AQI
58AQI
56AQI
54AQI
54AQI
47AQI
43AQI
42AQI
36AQI
35AQI
29AQI
29AQI
23AQI
23AQI
24AQI
25AQI
23AQI
21AQI
24AQI
27AQI
31AQI
30AQI
35AQI
34AQI
31AQI
35AQI
30AQI
29AQI
23AQI
27AQI
27AQI
29AQI
33AQI
34AQI
37AQI
33AQI
33AQI
24AQI
19AQI
20AQI
24AQI
24AQI
24AQI
41AQI
45AQI
45AQI
34AQI
39AQI
42AQI
47AQI
39AQI
44AQI
42AQI
40AQI
46AQI
46AQI
43AQI
41AQI
40AQI
40AQI
42AQI
29AQI
23AQI
24AQI
21AQI
28AQI
34AQI
33AQI
42AQI
No. of days
202530AQI
Highest AQI recorded in
September42AQI
Lowest AQI recorded in
May21AQI
202433AQI
Highest AQI recorded in
September42AQI
Lowest AQI recorded in
April4AQI
202324AQI
Highest AQI recorded in
August97AQI
Lowest AQI recorded in
November14AQI
202236AQI
Highest AQI recorded in
May46AQI
Lowest AQI recorded in
August30AQI
202158AQI
Highest AQI recorded in
August117AQI
Lowest AQI recorded in
April17AQI
2020115AQI
Highest AQI recorded in
September115AQI
Lowest AQI recorded in
September115AQI
Most & Least Polluted Years Over the Last 6 Years
Red Bluff's annual 2025 AQI (30) shows an average percentage change of -25.6% (improved AQI) compared to previous years: 2020 (115), 2021 (58), 2022 (36), 2023 (24), 2024 (33).