Lethbridge, Alberta, Canada Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
July Air Quality Analysis
Lethbridge, Alberta, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (2nd July ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 27 of Good air quality, showing improvement over 2022 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 2nd Jul - 3rd Jul 2025
Lethbridge, Alberta, Canada
5 AM2nd Jul 2025
9 PM
4 AM3rd Jul 2025
37AQI
27AQI
29AQI
26AQI
In the last 24 hours,
Lethbridge's AQI reached its highest point of 37 at 5 PM during the Day, while the lowest point, 26, was recorded at 4 AM during the Night between 2nd Jul and 3rd Jul 2025.
Day & Night AQI Trend : Jun - Jul 2025
Lethbridge, Alberta, Canada
12°C4/19°C
13°C2/24°C
17°C5/27°C
19°C11/27°C
15°C11/20°C
18°C7/27°C
24°C11/35°C
20°C9/29°C
19°C9/27°C
14°C13/15°C
19°C11/28°C
17°C6/26°C
17°C7/27°C
18°C6/28°C
20°C7/30°C
18°C6/29°C
19°C9/28°C
12°C10/13°C
9°C5/10°C
11°C6/15°C
14°C3/23°C
17°C4/27°C
19°C8/29°C
19°C9/27°C
19°C10/27°C
18°C12/25°C
18°C6/27°C
20°C6/31°C
21°C9/32°C
25°C12/35°C
0°C0/0°C
33AQI
33AQI
32AQI
32AQI
2025 Days Vs Air Quality
Lethbridge, Alberta, Canada
96%
176
4%
7
Total number of days with different AQI categories in last 184 days in 2025 (181 days remaining)
Under WHO’s Safe Air Quality Limits: 96%
Health Risk Level:
Very Low
In 2025, 96% of 184 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
Lethbridge, Alberta, Canada
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
47AQI
53AQI
46AQI
28AQI
48AQI
65AQI
42AQI
31AQI
33AQI
34AQI
24AQI
37AQI
39AQI
38AQI
38AQI
26AQI
23AQI
23AQI
35AQI
37AQI
25AQI
25AQI
26AQI
21AQI
24AQI
24AQI
25AQI
26AQI
31AQI
37AQI
41AQI
33AQI
28AQI
32AQI
28AQI
30AQI
33AQI
38AQI
41AQI
47AQI
28AQI
26AQI
32AQI
39AQI
33AQI
29AQI
42AQI
38AQI
26AQI
32AQI
37AQI
24AQI
21AQI
18AQI
18AQI
20AQI
20AQI
19AQI
23AQI
30AQI
33AQI
32AQI
25AQI
22AQI
30AQI
20AQI
18AQI
26AQI
21AQI
20AQI
24AQI
24AQI
25AQI
25AQI
26AQI
28AQI
30AQI
25AQI
20AQI
16AQI
16AQI
14AQI
16AQI
18AQI
26AQI
24AQI
23AQI
18AQI
19AQI
21AQI
22AQI
26AQI
20AQI
20AQI
18AQI
19AQI
19AQI
12AQI
13AQI
20AQI
24AQI
17AQI
15AQI
21AQI
18AQI
19AQI
16AQI
17AQI
18AQI
21AQI
20AQI
15AQI
20AQI
30AQI
22AQI
23AQI
31AQI
22AQI
16AQI
15AQI
25AQI
20AQI
30AQI
21AQI
15AQI
21AQI
18AQI
21AQI
24AQI
28AQI
20AQI
18AQI
21AQI
30AQI
21AQI
37AQI
22AQI
22AQI
15AQI
13AQI
13AQI
23AQI
20AQI
18AQI
16AQI
18AQI
19AQI
24AQI
26AQI
26AQI
20AQI
19AQI
16AQI
21AQI
28AQI
31AQI
25AQI
32AQI
55AQI
53AQI
52AQI
56AQI
60AQI
43AQI
27AQI
24AQI
25AQI
29AQI
35AQI
28AQI
30AQI
24AQI
24AQI
30AQI
45AQI
42AQI
31AQI
20AQI
15AQI
15AQI
17AQI
28AQI
27AQI
34AQI
30AQI
23AQI
20AQI
21AQI
32AQI
28AQI
No. of days
202527AQI
Highest AQI recorded in
January34AQI
Lowest AQI recorded in
April20AQI
202428AQI
Highest AQI recorded in
July42AQI
Lowest AQI recorded in
April18AQI
202329AQI
Highest AQI recorded in
June53AQI
Lowest AQI recorded in
December12AQI
202222AQI
Highest AQI recorded in
September49AQI
Lowest AQI recorded in
February11AQI
202126AQI
Highest AQI recorded in
July68AQI
Lowest AQI recorded in
November12AQI
202023AQI
Highest AQI recorded in
September38AQI
Lowest AQI recorded in
June13AQI
Most & Least Polluted Years Over the Last 6 Years
Lethbridge's annual 2025 AQI (27) shows an average percentage change of 5.07% (worsened AQI) compared to previous years: 2020 (23), 2021 (26), 2022 (22), 2023 (29), 2024 (28).