Cedar Rapids, Iowa, 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
Cedar Rapids, Iowa, United States
AQI Trends: Highest and Lowest
Same Day Analysis (2nd October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 62 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 2nd Oct - 3rd Oct 2025
Cedar Rapids, Iowa, United States
6 AM2nd Oct 2025
7 PM
5 AM3rd Oct 2025
70AQI
56AQI
86AQI
55AQI
In the last 24 hours,
Cedar Rapids's AQI reached its highest point of 86 at 5 AM during the Night, while the lowest point, 55, was recorded at 6 AM during the Night between 2nd Oct and 3rd Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Cedar Rapids, Iowa, United States
17°C10/22°C
14°C5/22°C
14°C9/20°C
12°C3/21°C
12°C1/22°C
16°C8/27°C
17°C10/25°C
18°C9/27°C
20°C11/30°C
22°C13/33°C
26°C18/36°C
26°C17/36°C
24°C18/32°C
24°C17/31°C
23°C16/33°C
22°C16/32°C
20°C17/25°C
18°C15/23°C
20°C14/28°C
21°C16/30°C
20°C15/28°C
19°C14/26°C
19°C10/28°C
21°C11/33°C
23°C13/33°C
23°C14/33°C
23°C13/34°C
23°C14/33°C
23°C16/31°C
22°C14/33°C
--°C/°C
46AQI
46AQI
47AQI
46AQI
2025 Days Vs Air Quality
Cedar Rapids, Iowa, United States
80%
221
19%
51
1%
3
Total number of days with different AQI categories in last 276 days in 2025 (89 days remaining)
Under WHO’s Safe Air Quality Limits: 80%
Health Risk Level:
Low
In 2025, 80% of 276 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Cedar Rapids, Iowa, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
28AQI
29AQI
23AQI
21AQI
21AQI
21AQI
29AQI
28AQI
51AQI
42AQI
27AQI
31AQI
21AQI
24AQI
28AQI
26AQI
24AQI
19AQI
19AQI
20AQI
20AQI
24AQI
26AQI
36AQI
27AQI
22AQI
22AQI
23AQI
25AQI
42AQI
39AQI
22AQI
44AQI
40AQI
23AQI
28AQI
30AQI
26AQI
28AQI
28AQI
31AQI
29AQI
26AQI
33AQI
37AQI
43AQI
25AQI
23AQI
22AQI
22AQI
23AQI
28AQI
45AQI
57AQI
34AQI
26AQI
25AQI
26AQI
26AQI
30AQI
30AQI
47AQI
41AQI
28AQI
27AQI
23AQI
28AQI
26AQI
28AQI
27AQI
30AQI
60AQI
53AQI
56AQI
21AQI
30AQI
33AQI
30AQI
21AQI
24AQI
29AQI
27AQI
21AQI
20AQI
25AQI
35AQI
44AQI
33AQI
31AQI
18AQI
34AQI
28AQI
20AQI
26AQI
31AQI
29AQI
28AQI
24AQI
40AQI
56AQI
50AQI
53AQI
47AQI
31AQI
22AQI
39AQI
45AQI
54AQI
29AQI
36AQI
25AQI
41AQI
32AQI
30AQI
26AQI
18AQI
24AQI
36AQI
25AQI
28AQI
34AQI
22AQI
22AQI
30AQI
22AQI
29AQI
34AQI
20AQI
24AQI
42AQI
29AQI
41AQI
31AQI
39AQI
46AQI
34AQI
28AQI
24AQI
24AQI
22AQI
20AQI
16AQI
23AQI
24AQI
30AQI
29AQI
20AQI
25AQI
28AQI
40AQI
42AQI
44AQI
57AQI
52AQI
65AQI
68AQI
70AQI
78AQI
77AQI
72AQI
67AQI
71AQI
73AQI
67AQI
67AQI
59AQI
50AQI
33AQI
22AQI
25AQI
31AQI
42AQI
45AQI
53AQI
27AQI
24AQI
36AQI
19AQI
28AQI
30AQI
25AQI
35AQI
46AQI
50AQI
47AQI
55AQI
36AQI
53AQI
53AQI
34AQI
39AQI
28AQI
34AQI
49AQI
62AQI
64AQI
43AQI
26AQI
25AQI
28AQI
21AQI
46AQI
46AQI
50AQI
33AQI
26AQI
22AQI
27AQI
27AQI
32AQI
29AQI
119AQI
116AQI
102AQI
87AQI
78AQI
60AQI
68AQI
54AQI
52AQI
50AQI
43AQI
30AQI
33AQI
53AQI
56AQI
55AQI
44AQI
41AQI
31AQI
22AQI
26AQI
19AQI
31AQI
30AQI
23AQI
23AQI
32AQI
42AQI
38AQI
41AQI
31AQI
36AQI
37AQI
41AQI
51AQI
61AQI
40AQI
22AQI
33AQI
36AQI
37AQI
48AQI
52AQI
57AQI
58AQI
59AQI
57AQI
55AQI
54AQI
54AQI
40AQI
33AQI
36AQI
36AQI
32AQI
31AQI
29AQI
41AQI
48AQI
37AQI
59AQI
58AQI
57AQI
62AQI
27AQI
30AQI
31AQI
34AQI
29AQI
49AQI
41AQI
47AQI
44AQI
60AQI
No. of days
202537AQI
Highest AQI recorded in
October60AQI
Lowest AQI recorded in
January27AQI
202434AQI
Highest AQI recorded in
October39AQI
Lowest AQI recorded in
November29AQI
202345AQI
Highest AQI recorded in
June75AQI
Lowest AQI recorded in
February35AQI
202238AQI
Highest AQI recorded in
October44AQI
Lowest AQI recorded in
April35AQI
202142AQI
Highest AQI recorded in
July55AQI
Lowest AQI recorded in
October33AQI
202037AQI
Highest AQI recorded in
December45AQI
Lowest AQI recorded in
September32AQI
Most & Least Polluted Years Over the Last 6 Years
Cedar Rapids's annual 2025 AQI (37) shows an average percentage change of -4.3% (improved AQI) compared to previous years: 2020 (37), 2021 (42), 2022 (38), 2023 (45), 2024 (34).