Springfield City Hall, Springfield, Oregon, 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
Springfield City Hall, Springfield, Oregon, United States
AQI Trends: Highest and Lowest
Same Day Analysis (12th October ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 2nd highest AQI at 26 of Good air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 12th Oct - 13th Oct 2025
Springfield City Hall, Springfield, Oregon, United States
7 AM12th Oct 2025
6 PM
6 AM13th Oct 2025
46AQI
15AQI
33AQI
15AQI
In the last 24 hours,
Springfield City Hall's AQI reached its highest point of 46 at 4 PM during the Day, while the lowest point, 15, was recorded at 1 AM during the Night between 12th Oct and 13th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Springfield City Hall, Springfield, Oregon, United States
--°C/°C
18°C15/21°C
17°C8/27°C
22°C13/35°C
21°C14/29°C
19°C15/26°C
20°C11/30°C
19°C12/27°C
15°C12/17°C
16°C6/27°C
19°C8/32°C
20°C9/32°C
19°C11/28°C
16°C7/27°C
17°C8/29°C
17°C9/27°C
15°C12/19°C
15°C10/22°C
15°C11/19°C
14°C11/21°C
14°C9/22°C
15°C11/20°C
16°C9/25°C
17°C5/31°C
17°C6/29°C
12°C7/18°C
11°C6/19°C
13°C10/20°C
12°C8/16°C
11°C9/13°C
10°C7/19°C
35AQI
29AQI
31AQI
28AQI
2025 Days Vs Air Quality
Springfield City Hall, Springfield, Oregon, United States
94%
267
6%
18
Total number of days with different AQI categories in last 287 days in 2025 (78 days remaining)
Under WHO’s Safe Air Quality Limits: 94%
Health Risk Level:
Very Low
In 2025, 94% of 287 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
Springfield City Hall, Springfield, Oregon, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
38AQI
33AQI
33AQI
30AQI
29AQI
29AQI
62AQI
40AQI
47AQI
39AQI
41AQI
38AQI
41AQI
38AQI
42AQI
41AQI
42AQI
40AQI
48AQI
47AQI
49AQI
54AQI
56AQI
57AQI
51AQI
52AQI
54AQI
55AQI
56AQI
55AQI
47AQI
41AQI
37AQI
34AQI
40AQI
33AQI
37AQI
30AQI
31AQI
31AQI
34AQI
33AQI
38AQI
36AQI
33AQI
30AQI
33AQI
33AQI
31AQI
34AQI
31AQI
34AQI
36AQI
33AQI
38AQI
34AQI
35AQI
34AQI
37AQI
34AQI
28AQI
25AQI
25AQI
27AQI
26AQI
31AQI
27AQI
31AQI
26AQI
31AQI
24AQI
24AQI
21AQI
21AQI
18AQI
19AQI
19AQI
19AQI
18AQI
18AQI
18AQI
19AQI
20AQI
24AQI
26AQI
20AQI
21AQI
17AQI
22AQI
17AQI
19AQI
18AQI
20AQI
22AQI
23AQI
24AQI
18AQI
19AQI
13AQI
18AQI
16AQI
18AQI
21AQI
25AQI
28AQI
26AQI
27AQI
27AQI
23AQI
24AQI
18AQI
20AQI
21AQI
27AQI
24AQI
26AQI
24AQI
21AQI
21AQI
22AQI
28AQI
22AQI
20AQI
18AQI
19AQI
21AQI
22AQI
20AQI
26AQI
23AQI
20AQI
19AQI
17AQI
20AQI
19AQI
20AQI
16AQI
17AQI
17AQI
14AQI
16AQI
16AQI
17AQI
19AQI
16AQI
16AQI
16AQI
21AQI
19AQI
21AQI
22AQI
18AQI
21AQI
20AQI
19AQI
20AQI
23AQI
20AQI
28AQI
31AQI
32AQI
33AQI
34AQI
28AQI
23AQI
24AQI
24AQI
21AQI
16AQI
17AQI
17AQI
14AQI
13AQI
17AQI
28AQI
31AQI
20AQI
18AQI
16AQI
18AQI
23AQI
23AQI
17AQI
17AQI
18AQI
21AQI
21AQI
22AQI
26AQI
19AQI
16AQI
19AQI
21AQI
21AQI
17AQI
23AQI
37AQI
29AQI
32AQI
23AQI
23AQI
22AQI
27AQI
32AQI
24AQI
19AQI
18AQI
17AQI
21AQI
23AQI
26AQI
31AQI
22AQI
18AQI
23AQI
27AQI
29AQI
18AQI
16AQI
20AQI
25AQI
29AQI
44AQI
38AQI
38AQI
17AQI
15AQI
14AQI
17AQI
16AQI
19AQI
20AQI
21AQI
35AQI
52AQI
53AQI
51AQI
59AQI
46AQI
39AQI
32AQI
34AQI
43AQI
28AQI
37AQI
65AQI
70AQI
60AQI
40AQI
39AQI
39AQI
33AQI
43AQI
43AQI
32AQI
41AQI
18AQI
21AQI
30AQI
29AQI
23AQI
48AQI
42AQI
26AQI
23AQI
30AQI
48AQI
52AQI
25AQI
18AQI
35AQI
41AQI
20AQI
18AQI
24AQI
31AQI
29AQI
32AQI
25AQI
28AQI
46AQI
24AQI
37AQI
28AQI
26AQI
45AQI
34AQI
23AQI
22AQI
19AQI
22AQI
23AQI
30AQI
37AQI
29AQI
No. of days
202528AQI
Highest AQI recorded in
January45AQI
Lowest AQI recorded in
May19AQI
202426AQI
Highest AQI recorded in
December39AQI
Lowest AQI recorded in
March6AQI
202333AQI
Highest AQI recorded in
November79AQI
Lowest AQI recorded in
December28AQI
202126AQI
Highest AQI recorded in
September39AQI
Lowest AQI recorded in
May19AQI
202039AQI
Highest AQI recorded in
September133AQI
Lowest AQI recorded in
June17AQI
Most & Least Polluted Years Over the Last 5 Years
Springfield City Hall's annual 2025 AQI (28) shows an average percentage change of -5.6% (improved AQI) compared to previous years: 2020 (39), 2021 (26), 2023 (33), 2024 (26).