Twin Falls, Idaho, 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
Twin Falls, Idaho, United States
AQI Trends: Highest and Lowest
Same Day Analysis (31st October ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 1st highest AQI at 12 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 1st Oct - 2nd Oct 2025
Twin Falls, Idaho, United States
7 AM1st Oct 2025
7 PM
6 AM2nd Oct 2025
39AQI
12AQI
42AQI
12AQI
In the last 24 hours,
Twin Falls's AQI reached its highest point of 42 at 12 AM during the Night, while the lowest point, 12, was recorded at 4 AM during the Night between 1st Oct and 2nd Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Twin Falls, Idaho, United States
25°C13/38°C
26°C13/37°C
25°C16/35°C
23°C13/33°C
21°C12/28°C
21°C11/34°C
21°C12/33°C
21°C12/29°C
20°C10/30°C
18°C9/26°C
17°C8/28°C
18°C9/28°C
19°C7/31°C
16°C9/25°C
16°C6/28°C
18°C7/29°C
19°C6/32°C
20°C9/31°C
20°C12/32°C
22°C16/30°C
17°C11/24°C
16°C6/27°C
18°C6/30°C
19°C7/32°C
20°C14/26°C
17°C6/28°C
20°C10/31°C
20°C11/30°C
16°C12/22°C
16°C10/25°C
--°C/°C
41AQI
32AQI
39AQI
32AQI
2025 Days Vs Air Quality
Twin Falls, Idaho, United States
96%
263
4%
10
Total number of days with different AQI categories in last 275 days in 2025 (90 days remaining)
Under WHO’s Safe Air Quality Limits: 96%
Health Risk Level:
Very Low
In 2025, 96% of 275 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
Twin Falls, Idaho, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
29AQI
32AQI
28AQI
25AQI
24AQI
26AQI
33AQI
28AQI
37AQI
34AQI
27AQI
26AQI
27AQI
29AQI
34AQI
41AQI
52AQI
36AQI
50AQI
47AQI
47AQI
36AQI
33AQI
38AQI
32AQI
30AQI
36AQI
46AQI
48AQI
48AQI
48AQI
32AQI
28AQI
27AQI
37AQI
31AQI
28AQI
27AQI
27AQI
31AQI
31AQI
30AQI
35AQI
25AQI
25AQI
17AQI
16AQI
17AQI
15AQI
17AQI
21AQI
18AQI
18AQI
21AQI
15AQI
14AQI
16AQI
20AQI
19AQI
22AQI
19AQI
20AQI
18AQI
14AQI
14AQI
16AQI
16AQI
16AQI
14AQI
15AQI
14AQI
19AQI
18AQI
18AQI
25AQI
40AQI
26AQI
20AQI
17AQI
21AQI
20AQI
21AQI
20AQI
23AQI
26AQI
28AQI
74AQI
21AQI
23AQI
24AQI
17AQI
18AQI
18AQI
23AQI
24AQI
22AQI
23AQI
21AQI
33AQI
48AQI
36AQI
27AQI
28AQI
30AQI
32AQI
28AQI
30AQI
22AQI
21AQI
19AQI
16AQI
16AQI
24AQI
23AQI
24AQI
21AQI
26AQI
22AQI
25AQI
20AQI
23AQI
24AQI
28AQI
20AQI
22AQI
15AQI
24AQI
20AQI
24AQI
24AQI
20AQI
28AQI
18AQI
19AQI
16AQI
18AQI
20AQI
21AQI
21AQI
18AQI
18AQI
27AQI
19AQI
20AQI
23AQI
23AQI
24AQI
26AQI
32AQI
20AQI
23AQI
26AQI
18AQI
18AQI
19AQI
23AQI
24AQI
27AQI
24AQI
28AQI
26AQI
34AQI
30AQI
26AQI
28AQI
27AQI
24AQI
26AQI
27AQI
30AQI
32AQI
29AQI
27AQI
21AQI
24AQI
25AQI
28AQI
31AQI
21AQI
22AQI
22AQI
30AQI
39AQI
33AQI
29AQI
31AQI
26AQI
20AQI
24AQI
24AQI
26AQI
25AQI
23AQI
25AQI
24AQI
32AQI
33AQI
34AQI
39AQI
31AQI
31AQI
31AQI
21AQI
24AQI
26AQI
26AQI
27AQI
26AQI
24AQI
25AQI
31AQI
40AQI
41AQI
30AQI
32AQI
36AQI
29AQI
34AQI
31AQI
23AQI
18AQI
20AQI
23AQI
28AQI
35AQI
37AQI
33AQI
36AQI
28AQI
29AQI
37AQI
36AQI
31AQI
35AQI
40AQI
54AQI
55AQI
56AQI
43AQI
49AQI
50AQI
51AQI
48AQI
48AQI
43AQI
52AQI
48AQI
67AQI
63AQI
51AQI
41AQI
46AQI
44AQI
29AQI
22AQI
24AQI
30AQI
23AQI
18AQI
26AQI
31AQI
29AQI
22AQI
18AQI
16AQI
20AQI
35AQI
44AQI
46AQI
45AQI
38AQI
41AQI
21AQI
36AQI
24AQI
22AQI
25AQI
22AQI
26AQI
28AQI
36AQI
36AQI
No. of days
202528AQI
Highest AQI recorded in
August36AQI
Lowest AQI recorded in
May22AQI
202428AQI
Highest AQI recorded in
August59AQI
Lowest AQI recorded in
February10AQI
202321AQI
Highest AQI recorded in
May26AQI
Lowest AQI recorded in
September16AQI
202227AQI
Highest AQI recorded in
September46AQI
Lowest AQI recorded in
May14AQI
202128AQI
Highest AQI recorded in
August65AQI
Lowest AQI recorded in
May18AQI
202035AQI
Highest AQI recorded in
March57AQI
Lowest AQI recorded in
June15AQI
Most & Least Polluted Years Over the Last 6 Years
Twin Falls's annual 2025 AQI (28) shows an average percentage change of 4.3% (worsened AQI) compared to previous years: 2020 (35), 2021 (28), 2022 (27), 2023 (21), 2024 (28).