Red Deer Lancaster, Red Deer, Alberta, Canada 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
Red Deer Lancaster, Red Deer, Alberta, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (3rd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 40 of Good air quality, showing improvement over 2024, 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 3rd Aug - 4th Aug 2025
Red Deer Lancaster, Red Deer, Alberta, Canada
5 AM3rd Aug 2025
9 PM
4 AM4th Aug 2025
48AQI
25AQI
52AQI
36AQI
In the last 24 hours,
Red Deer Lancaster's AQI reached its highest point of 52 at 5 AM during the Night, while the lowest point, 25, was recorded at 11 AM during the Day between 3rd Aug and 4th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Red Deer Lancaster, Red Deer, Alberta, Canada
15°C7/23°C
15°C10/21°C
18°C7/28°C
22°C9/33°C
17°C14/23°C
14°C9/20°C
17°C4/28°C
21°C10/29°C
16°C11/25°C
15°C12/19°C
13°C4/21°C
15°C6/22°C
15°C9/21°C
14°C2/23°C
16°C13/21°C
14°C10/16°C
14°C11/20°C
10°C8/12°C
12°C2/24°C
18°C7/27°C
14°C10/19°C
14°C9/18°C
15°C10/20°C
13°C9/17°C
17°C9/27°C
20°C11/29°C
21°C11/31°C
21°C12/31°C
19°C12/27°C
18°C14/22°C
--°C/°C
34AQI
34AQI
32AQI
29AQI
2025 Days Vs Air Quality
Red Deer Lancaster, Red Deer, Alberta, Canada
94%
203
6%
12
Total number of days with different AQI categories in last 216 days in 2025 (149 days remaining)
Under WHO’s Safe Air Quality Limits: 94%
Health Risk Level:
Very Low
In 2025, 94% of 216 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
Red Deer Lancaster, Red Deer, Alberta, Canada
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
36AQI
39AQI
38AQI
21AQI
34AQI
61AQI
40AQI
24AQI
29AQI
39AQI
24AQI
34AQI
26AQI
24AQI
25AQI
23AQI
22AQI
20AQI
34AQI
39AQI
26AQI
24AQI
27AQI
19AQI
25AQI
30AQI
24AQI
24AQI
42AQI
58AQI
28AQI
32AQI
25AQI
29AQI
30AQI
41AQI
32AQI
44AQI
52AQI
29AQI
25AQI
29AQI
36AQI
56AQI
24AQI
29AQI
54AQI
40AQI
25AQI
29AQI
45AQI
38AQI
32AQI
20AQI
22AQI
31AQI
31AQI
25AQI
20AQI
32AQI
43AQI
24AQI
34AQI
31AQI
37AQI
26AQI
25AQI
38AQI
34AQI
23AQI
29AQI
30AQI
19AQI
25AQI
22AQI
35AQI
40AQI
35AQI
27AQI
26AQI
22AQI
18AQI
18AQI
22AQI
24AQI
19AQI
16AQI
20AQI
21AQI
22AQI
22AQI
23AQI
18AQI
26AQI
18AQI
34AQI
24AQI
18AQI
16AQI
19AQI
25AQI
32AQI
17AQI
25AQI
22AQI
19AQI
18AQI
20AQI
22AQI
22AQI
22AQI
17AQI
17AQI
23AQI
23AQI
31AQI
26AQI
28AQI
22AQI
18AQI
23AQI
27AQI
33AQI
24AQI
16AQI
28AQI
26AQI
32AQI
25AQI
35AQI
32AQI
40AQI
22AQI
30AQI
26AQI
40AQI
21AQI
26AQI
17AQI
13AQI
14AQI
17AQI
20AQI
19AQI
13AQI
15AQI
19AQI
28AQI
33AQI
27AQI
29AQI
25AQI
27AQI
32AQI
42AQI
35AQI
39AQI
42AQI
52AQI
55AQI
56AQI
56AQI
61AQI
53AQI
27AQI
25AQI
25AQI
29AQI
31AQI
34AQI
34AQI
31AQI
30AQI
36AQI
39AQI
36AQI
34AQI
22AQI
15AQI
14AQI
18AQI
18AQI
18AQI
18AQI
16AQI
24AQI
16AQI
17AQI
20AQI
23AQI
20AQI
26AQI
29AQI
19AQI
17AQI
31AQI
41AQI
41AQI
27AQI
33AQI
28AQI
43AQI
31AQI
44AQI
41AQI
27AQI
35AQI
42AQI
40AQI
37AQI
43AQI
44AQI
56AQI
49AQI
40AQI
31AQI
33AQI
27AQI
22AQI
25AQI
35AQI
29AQI
48AQI
No. of days
202529AQI
Highest AQI recorded in
August48AQI
Lowest AQI recorded in
April22AQI
202432AQI
Highest AQI recorded in
July53AQI
Lowest AQI recorded in
October20AQI
202340AQI
Highest AQI recorded in
May63AQI
Lowest AQI recorded in
December23AQI
202226AQI
Highest AQI recorded in
August67AQI
Lowest AQI recorded in
January20AQI
202128AQI
Highest AQI recorded in
July61AQI
Lowest AQI recorded in
May18AQI
202022AQI
Highest AQI recorded in
March33AQI
Lowest AQI recorded in
June16AQI
Most & Least Polluted Years Over the Last 6 Years
Red Deer Lancaster's annual 2025 AQI (29) shows an average percentage change of 1.9% (worsened AQI) compared to previous years: 2020 (22), 2021 (28), 2022 (26), 2023 (40), 2024 (32).