Wood River, Illinois, 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
Wood River, Illinois, United States
AQI Trends: Highest and Lowest
Same Day Analysis (1st October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 66 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 30th Sep - 1st Oct 2025
Wood River, Illinois, United States
6 AM30th Sep 2025
7 PM
5 AM1st Oct 2025
98AQI
49AQI
68AQI
50AQI
In the last 24 hours,
Wood River's AQI reached its highest point of 98 at 1 PM during the Day, while the lowest point, 49, was recorded at 6 PM during the Day between 30th Sep and 1st Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Wood River, Illinois, United States
--°C/°C
20°C12/30°C
22°C13/31°C
18°C13/25°C
18°C14/25°C
19°C12/26°C
16°C7/25°C
16°C6/26°C
18°C6/29°C
24°C15/32°C
24°C15/34°C
25°C15/35°C
27°C18/36°C
29°C21/38°C
26°C19/35°C
26°C20/35°C
24°C15/34°C
25°C13/35°C
23°C17/30°C
22°C18/29°C
24°C16/34°C
21°C19/26°C
21°C17/27°C
21°C19/26°C
20°C15/28°C
20°C12/30°C
21°C11/32°C
22°C12/33°C
23°C13/34°C
23°C14/34°C
23°C14/33°C
52AQI
47AQI
49AQI
45AQI
2025 Days Vs Air Quality
Wood River, Illinois, United States
68%
129
31%
59
0.5%
1
Total number of days with different AQI categories in last 275 days in 2025 (90 days remaining)
Under WHO’s Safe Air Quality Limits: 68%
Health Risk Level:
Moderate
In 2025, 68% of 275 days were within WHO’s safe air quality limits, and 32% exceeded them. The risk of health issues is Moderate, particularly for individuals with respiratory or heart conditions.
Annual Air Quality Insights
Wood River, Illinois, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
54AQI
39AQI
43AQI
26AQI
18AQI
37AQI
40AQI
31AQI
25AQI
24AQI
23AQI
35AQI
23AQI
32AQI
43AQI
43AQI
59AQI
46AQI
42AQI
23AQI
40AQI
51AQI
59AQI
48AQI
52AQI
22AQI
38AQI
38AQI
45AQI
39AQI
26AQI
25AQI
40AQI
36AQI
29AQI
28AQI
27AQI
29AQI
20AQI
19AQI
31AQI
30AQI
30AQI
28AQI
41AQI
39AQI
36AQI
32AQI
40AQI
57AQI
45AQI
27AQI
24AQI
34AQI
28AQI
16AQI
16AQI
22AQI
30AQI
36AQI
22AQI
24AQI
28AQI
46AQI
31AQI
46AQI
42AQI
51AQI
61AQI
50AQI
41AQI
52AQI
83AQI
58AQI
61AQI
63AQI
77AQI
82AQI
51AQI
36AQI
47AQI
33AQI
43AQI
38AQI
26AQI
48AQI
53AQI
55AQI
60AQI
56AQI
54AQI
52AQI
37AQI
28AQI
28AQI
30AQI
33AQI
48AQI
55AQI
64AQI
83AQI
59AQI
41AQI
54AQI
40AQI
46AQI
51AQI
36AQI
36AQI
32AQI
37AQI
39AQI
32AQI
31AQI
51AQI
55AQI
29AQI
43AQI
57AQI
59AQI
47AQI
50AQI
30AQI
42AQI
50AQI
48AQI
43AQI
115AQI
83AQI
47AQI
39AQI
33AQI
50AQI
56AQI
56AQI
53AQI
48AQI
47AQI
50AQI
48AQI
64AQI
60AQI
59AQI
59AQI
62AQI
53AQI
28AQI
22AQI
31AQI
45AQI
25AQI
26AQI
31AQI
40AQI
47AQI
54AQI
41AQI
35AQI
29AQI
31AQI
46AQI
57AQI
57AQI
32AQI
27AQI
30AQI
43AQI
54AQI
61AQI
62AQI
62AQI
61AQI
58AQI
59AQI
56AQI
64AQI
47AQI
52AQI
47AQI
39AQI
43AQI
28AQI
27AQI
39AQI
46AQI
53AQI
62AQI
62AQI
66AQI
36AQI
37AQI
31AQI
50AQI
46AQI
49AQI
48AQI
66AQI
No. of days
202543AQI
Highest AQI recorded in
October66AQI
Lowest AQI recorded in
May31AQI
Most & Least Polluted Years Over the Last 1 Years
Wood River's annual 2025 AQI (43) shows an average percentage change of NaN% (improved AQI) compared to previous years: .