Hailey, Idaho, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
Hailey, Idaho, United States
AQI Trends: Highest and Lowest
Same Day Analysis (12th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 21 of Good air quality, showing improvement over 2024 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 12th Aug - 13th Aug 2025
Hailey, Idaho, United States
6 AM12th Aug 2025
9 PM
5 AM13th Aug 2025
27AQI
19AQI
25AQI
20AQI
In the last 24 hours,
Hailey's AQI reached its highest point of 27 at 1 PM during the Day, while the lowest point, 19, was recorded at 11 AM during the Day between 12th Aug and 13th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Hailey, Idaho, United States
24°C15/32°C
23°C16/31°C
18°C7/27°C
21°C12/30°C
23°C15/30°C
19°C9/27°C
20°C12/28°C
19°C13/26°C
18°C11/24°C
19°C11/27°C
20°C11/29°C
21°C13/29°C
21°C14/28°C
21°C13/28°C
22°C11/30°C
21°C11/31°C
22°C12/31°C
21°C13/29°C
20°C11/26°C
19°C10/29°C
19°C9/28°C
19°C12/26°C
18°C8/26°C
21°C11/29°C
19°C12/26°C
15°C5/25°C
16°C7/24°C
18°C9/28°C
19°C10/29°C
23°C14/32°C
--°C/°C
27AQI
20AQI
23AQI
20AQI
2025 Days Vs Air Quality
Hailey, Idaho, United States
100%
224
Total number of days with different AQI categories in last 225 days in 2025 (140 days remaining)
Under WHO’s Safe Air Quality Limits: 100%
Health Risk Level:
Very Low
In 2025, 100% of 225 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
Hailey, Idaho, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
33AQI
38AQI
38AQI
33AQI
30AQI
33AQI
32AQI
31AQI
37AQI
34AQI
30AQI
29AQI
30AQI
30AQI
38AQI
31AQI
33AQI
33AQI
40AQI
37AQI
37AQI
36AQI
32AQI
33AQI
34AQI
35AQI
35AQI
39AQI
39AQI
44AQI
37AQI
41AQI
30AQI
34AQI
36AQI
26AQI
27AQI
30AQI
28AQI
28AQI
28AQI
30AQI
29AQI
24AQI
20AQI
18AQI
20AQI
22AQI
22AQI
18AQI
21AQI
18AQI
17AQI
22AQI
24AQI
18AQI
19AQI
19AQI
19AQI
18AQI
20AQI
20AQI
20AQI
17AQI
15AQI
19AQI
18AQI
18AQI
18AQI
23AQI
20AQI
22AQI
25AQI
23AQI
26AQI
46AQI
22AQI
25AQI
23AQI
26AQI
24AQI
27AQI
28AQI
25AQI
26AQI
28AQI
37AQI
23AQI
23AQI
22AQI
21AQI
18AQI
20AQI
20AQI
19AQI
21AQI
22AQI
18AQI
34AQI
34AQI
28AQI
23AQI
27AQI
29AQI
26AQI
27AQI
21AQI
22AQI
26AQI
22AQI
26AQI
27AQI
20AQI
21AQI
22AQI
31AQI
23AQI
22AQI
22AQI
23AQI
24AQI
28AQI
30AQI
21AQI
18AQI
19AQI
22AQI
29AQI
25AQI
26AQI
23AQI
28AQI
18AQI
17AQI
18AQI
20AQI
20AQI
18AQI
21AQI
19AQI
19AQI
16AQI
17AQI
18AQI
17AQI
17AQI
19AQI
21AQI
20AQI
24AQI
20AQI
21AQI
17AQI
16AQI
20AQI
21AQI
22AQI
23AQI
23AQI
26AQI
22AQI
21AQI
22AQI
22AQI
21AQI
21AQI
19AQI
21AQI
21AQI
21AQI
22AQI
20AQI
18AQI
17AQI
20AQI
23AQI
22AQI
23AQI
21AQI
21AQI
21AQI
27AQI
32AQI
35AQI
25AQI
29AQI
23AQI
20AQI
22AQI
22AQI
23AQI
24AQI
26AQI
27AQI
25AQI
24AQI
25AQI
26AQI
39AQI
32AQI
21AQI
24AQI
18AQI
17AQI
18AQI
22AQI
23AQI
21AQI
22AQI
23AQI
22AQI
30AQI
30AQI
22AQI
21AQI
26AQI
25AQI
24AQI
23AQI
21AQI
19AQI
18AQI
18AQI
21AQI
35AQI
25AQI
23AQI
24AQI
21AQI
21AQI
25AQI
22AQI
No. of days
202525AQI
Highest AQI recorded in
January35AQI
Lowest AQI recorded in
June21AQI
202426AQI
Highest AQI recorded in
August55AQI
Lowest AQI recorded in
April10AQI
202317AQI
Highest AQI recorded in
January22AQI
Lowest AQI recorded in
October12AQI
202221AQI
Highest AQI recorded in
September48AQI
Lowest AQI recorded in
May12AQI
202127AQI
Highest AQI recorded in
August67AQI
Lowest AQI recorded in
May14AQI
202025AQI
Highest AQI recorded in
September51AQI
Lowest AQI recorded in
March10AQI
Most & Least Polluted Years Over the Last 6 Years
Hailey's annual 2025 AQI (25) shows an average percentage change of 8.4% (worsened AQI) compared to previous years: 2020 (25), 2021 (27), 2022 (21), 2023 (17), 2024 (26).