Grangeville, 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
Grangeville, Idaho, United States
AQI Trends: Highest and Lowest
Same Day Analysis (17th October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 41 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 17th Oct - 18th Oct 2025
Grangeville, Idaho, United States
6 AM17th Oct 2025
6 PM
5 AM18th Oct 2025
62AQI
23AQI
69AQI
15AQI
In the last 24 hours,
Grangeville's AQI reached its highest point of 69 at 6 PM during the Night, while the lowest point, 15, was recorded at 2 AM during the Night between 17th Oct and 18th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Grangeville, Idaho, United States
21°C14/29°C
22°C15/29°C
22°C15/29°C
17°C13/22°C
12°C6/20°C
15°C5/26°C
19°C10/29°C
19°C10/29°C
14°C8/20°C
14°C5/25°C
18°C9/29°C
18°C12/25°C
14°C11/19°C
15°C10/21°C
12°C6/19°C
11°C9/14°C
9°C6/15°C
9°C5/15°C
8°C1/17°C
11°C2/23°C
16°C8/24°C
17°C7/26°C
16°C9/27°C
9°C6/12°C
6°C4/9°C
6°C2/13°C
6°C2/12°C
5°C1/11°C
7°C1/14°C
10°C5/17°C
--°C/°C
40AQI
33AQI
35AQI
30AQI
2025 Days Vs Air Quality
Grangeville, Idaho, United States
90%
185
10%
21
Total number of days with different AQI categories in last 291 days in 2025 (74 days remaining)
Under WHO’s Safe Air Quality Limits: 90%
Health Risk Level:
Very Low
In 2025, 90% of 291 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
Grangeville, Idaho, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
25AQI
21AQI
19AQI
18AQI
21AQI
19AQI
18AQI
19AQI
21AQI
26AQI
18AQI
21AQI
19AQI
14AQI
14AQI
24AQI
19AQI
18AQI
18AQI
24AQI
19AQI
17AQI
18AQI
17AQI
17AQI
14AQI
12AQI
18AQI
21AQI
24AQI
21AQI
18AQI
26AQI
19AQI
14AQI
15AQI
19AQI
21AQI
28AQI
14AQI
17AQI
16AQI
16AQI
18AQI
24AQI
21AQI
17AQI
15AQI
14AQI
16AQI
16AQI
17AQI
14AQI
13AQI
16AQI
12AQI
13AQI
18AQI
15AQI
18AQI
19AQI
23AQI
17AQI
23AQI
20AQI
16AQI
20AQI
21AQI
19AQI
18AQI
23AQI
22AQI
24AQI
28AQI
32AQI
25AQI
33AQI
33AQI
28AQI
23AQI
21AQI
21AQI
23AQI
26AQI
23AQI
21AQI
20AQI
18AQI
18AQI
20AQI
29AQI
27AQI
22AQI
18AQI
15AQI
15AQI
20AQI
25AQI
27AQI
25AQI
19AQI
26AQI
19AQI
20AQI
25AQI
25AQI
18AQI
18AQI
22AQI
19AQI
25AQI
25AQI
27AQI
32AQI
33AQI
28AQI
29AQI
27AQI
21AQI
27AQI
28AQI
22AQI
22AQI
20AQI
20AQI
20AQI
28AQI
34AQI
28AQI
28AQI
32AQI
24AQI
24AQI
28AQI
18AQI
17AQI
17AQI
20AQI
21AQI
27AQI
27AQI
31AQI
26AQI
23AQI
18AQI
25AQI
32AQI
34AQI
33AQI
48AQI
56AQI
59AQI
57AQI
59AQI
56AQI
54AQI
53AQI
50AQI
54AQI
53AQI
58AQI
62AQI
61AQI
75AQI
74AQI
64AQI
46AQI
46AQI
57AQI
30AQI
25AQI
30AQI
33AQI
17AQI
18AQI
28AQI
28AQI
30AQI
35AQI
32AQI
18AQI
31AQI
37AQI
55AQI
56AQI
71AQI
57AQI
38AQI
22AQI
17AQI
22AQI
24AQI
51AQI
39AQI
24AQI
37AQI
37AQI
32AQI
37AQI
33AQI
29AQI
28AQI
21AQI
28AQI
41AQI
41AQI
21AQI
19AQI
18AQI
23AQI
24AQI
35AQI
43AQI
32AQI
No. of days
202527AQI
Highest AQI recorded in
September43AQI
Lowest AQI recorded in
May18AQI
Most & Least Polluted Years Over the Last 1 Years
Grangeville's annual 2025 AQI (27) shows an average percentage change of NaN% (improved AQI) compared to previous years: .