Preston, 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
Preston, Idaho, United States
AQI Trends: Highest and Lowest
Same Day Analysis (3rd October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 38 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 3rd Oct - 4th Oct 2025
Preston, Idaho, United States
7 AM3rd Oct 2025
7 PM
6 AM4th Oct 2025
40AQI
31AQI
38AQI
21AQI
In the last 24 hours,
Preston's AQI reached its highest point of 40 at 8 AM during the Day, while the lowest point, undefined, was recorded at 6 AM during the Night between 3rd Oct and 4th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Preston, Idaho, United States
22°C12/31°C
21°C11/30°C
19°C10/28°C
18°C7/29°C
18°C6/29°C
18°C9/29°C
18°C8/29°C
18°C7/27°C
16°C5/25°C
16°C6/24°C
16°C5/27°C
14°C5/24°C
14°C1/25°C
15°C4/25°C
16°C3/26°C
16°C5/26°C
16°C8/27°C
19°C11/27°C
16°C11/22°C
15°C7/25°C
17°C8/27°C
18°C8/28°C
20°C11/28°C
19°C10/28°C
20°C14/27°C
18°C11/26°C
15°C11/19°C
16°C9/24°C
17°C8/27°C
16°C10/25°C
--°C/°C
28AQI
26AQI
28AQI
26AQI
2025 Days Vs Air Quality
Preston, Idaho, United States
96%
185
4%
7
Total number of days with different AQI categories in last 277 days in 2025 (88 days remaining)
Under WHO’s Safe Air Quality Limits: 96%
Health Risk Level:
Very Low
In 2025, 96% of 277 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
Preston, Idaho, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
26AQI
23AQI
55AQI
50AQI
35AQI
25AQI
18AQI
23AQI
18AQI
17AQI
13AQI
14AQI
16AQI
16AQI
29AQI
46AQI
44AQI
31AQI
26AQI
25AQI
30AQI
30AQI
29AQI
20AQI
17AQI
23AQI
20AQI
23AQI
26AQI
24AQI
23AQI
25AQI
27AQI
20AQI
18AQI
19AQI
23AQI
27AQI
31AQI
26AQI
25AQI
15AQI
20AQI
21AQI
23AQI
29AQI
29AQI
45AQI
49AQI
35AQI
22AQI
23AQI
18AQI
20AQI
24AQI
21AQI
22AQI
24AQI
26AQI
24AQI
24AQI
24AQI
28AQI
30AQI
30AQI
31AQI
33AQI
34AQI
28AQI
24AQI
22AQI
25AQI
29AQI
35AQI
32AQI
31AQI
32AQI
35AQI
38AQI
32AQI
33AQI
32AQI
29AQI
31AQI
35AQI
32AQI
36AQI
55AQI
47AQI
52AQI
33AQI
37AQI
36AQI
37AQI
31AQI
25AQI
23AQI
37AQI
43AQI
42AQI
31AQI
46AQI
33AQI
33AQI
32AQI
34AQI
32AQI
32AQI
33AQI
31AQI
31AQI
42AQI
44AQI
50AQI
44AQI
36AQI
41AQI
36AQI
28AQI
24AQI
30AQI
43AQI
30AQI
24AQI
25AQI
32AQI
38AQI
47AQI
46AQI
31AQI
28AQI
39AQI
46AQI
48AQI
33AQI
29AQI
23AQI
23AQI
24AQI
28AQI
36AQI
46AQI
39AQI
33AQI
33AQI
24AQI
24AQI
29AQI
34AQI
32AQI
30AQI
37AQI
53AQI
51AQI
28AQI
33AQI
53AQI
47AQI
33AQI
39AQI
39AQI
39AQI
44AQI
46AQI
62AQI
33AQI
22AQI
24AQI
26AQI
21AQI
23AQI
21AQI
20AQI
21AQI
18AQI
17AQI
26AQI
27AQI
26AQI
18AQI
17AQI
16AQI
20AQI
33AQI
29AQI
28AQI
18AQI
19AQI
15AQI
33AQI
40AQI
38AQI
36AQI
24AQI
27AQI
33AQI
36AQI
35AQI
27AQI
37AQI
No. of days
202531AQI
Highest AQI recorded in
October37AQI
Lowest AQI recorded in
April24AQI
Most & Least Polluted Years Over the Last 1 Years
Preston's annual 2025 AQI (31) shows an average percentage change of NaN% (improved AQI) compared to previous years: .