Peterborough, Ontario, Canada Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
June Air Quality Analysis
Peterborough, Ontario, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (3rd June):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 32 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 2nd Jun - 3rd Jun 2026
Peterborough, Ontario, Canada
5 AM2nd Jun 2026
8 PM
4 AM3rd Jun 2026
38AQI
28AQI
54AQI
30AQI
In the last 24 hours,
Peterborough's AQI reached its highest point of 54 at 3 AM during the Night, while the lowest point, 28, was recorded at 4 PM during the Day between 2nd Jun and 3rd Jun 2026.
Day & Night AQI Trend : May - Jun 2026
Peterborough, Ontario, Canada
13°C8/20°C
7°C2/11°C
6°C0/11°C
7°C1/14°C
10°C2/17°C
8°C3/13°C
7°C3/13°C
8°C0/16°C
9°C5/16°C
8°C7/9°C
13°C5/23°C
15°C7/23°C
20°C11/28°C
23°C14/32°C
23°C18/29°C
11°C6/13°C
10°C4/19°C
12°C3/22°C
11°C8/17°C
11°C9/14°C
16°C13/23°C
21°C12/30°C
20°C13/27°C
15°C10/19°C
16°C9/25°C
15°C7/22°C
15°C8/23°C
15°C7/22°C
18°C7/28°C
20°C10/30°C
43AQI
31AQI
42AQI
38AQI
2026 Days Vs Air Quality
Peterborough, Ontario, Canada
90%
136
10%
15
Total number of days with different AQI categories in last 154 days in 2026 (211 days remaining)
Under WHO’s Safe Air Quality Limits: 90%
Health Risk Level:
Very Low
In 2026, 90% of 154 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
Peterborough, Ontario, Canada
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
8AQI (US)
8AQI (US)
9AQI (US)
30AQI (US)
44AQI (US)
67AQI (US)
53AQI (US)
42AQI (US)
30AQI (US)
12AQI (US)
14AQI (US)
26AQI (US)
42AQI (US)
33AQI (US)
11AQI (US)
12AQI (US)
30AQI (US)
28AQI (US)
32AQI (US)
10AQI (US)
24AQI (US)
58AQI (US)
61AQI (US)
48AQI (US)
51AQI (US)
48AQI (US)
40AQI (US)
44AQI (US)
50AQI (US)
58AQI (US)
46AQI (US)
48AQI (US)
52AQI (US)
48AQI (US)
44AQI (US)
52AQI (US)
51AQI (US)
40AQI (US)
44AQI (US)
49AQI (US)
46AQI (US)
40AQI (US)
40AQI (US)
48AQI (US)
51AQI (US)
44AQI (US)
48AQI (US)
52AQI (US)
44AQI (US)
42AQI (US)
40AQI (US)
36AQI (US)
36AQI (US)
40AQI (US)
46AQI (US)
48AQI (US)
37AQI (US)
40AQI (US)
40AQI (US)
40AQI (US)
62AQI (US)
48AQI (US)
48AQI (US)
43AQI (US)
36AQI (US)
44AQI (US)
44AQI (US)
40AQI (US)
36AQI (US)
46AQI (US)
42AQI (US)
44AQI (US)
36AQI (US)
33AQI (US)
38AQI (US)
34AQI (US)
34AQI (US)
39AQI (US)
46AQI (US)
42AQI (US)
38AQI (US)
42AQI (US)
37AQI (US)
34AQI (US)
38AQI (US)
28AQI (US)
31AQI (US)
30AQI (US)
28AQI (US)
29AQI (US)
31AQI (US)
30AQI (US)
30AQI (US)
32AQI (US)
30AQI (US)
32AQI (US)
28AQI (US)
34AQI (US)
30AQI (US)
31AQI (US)
31AQI (US)
30AQI (US)
33AQI (US)
38AQI (US)
36AQI (US)
32AQI (US)
29AQI (US)
32AQI (US)
28AQI (US)
28AQI (US)
24AQI (US)
24AQI (US)
28AQI (US)
32AQI (US)
27AQI (US)
26AQI (US)
24AQI (US)
26AQI (US)
26AQI (US)
24AQI (US)
23AQI (US)
36AQI (US)
37AQI (US)
30AQI (US)
26AQI (US)
28AQI (US)
32AQI (US)
28AQI (US)
26AQI (US)
36AQI (US)
22AQI (US)
44AQI (US)
49AQI (US)
77AQI (US)
60AQI (US)
46AQI (US)
51AQI (US)
44AQI (US)
44AQI (US)
50AQI (US)
43AQI (US)
46AQI (US)
38AQI (US)
28AQI (US)
28AQI (US)
26AQI (US)
28AQI (US)
30AQI (US)
31AQI (US)
32AQI (US)
32AQI (US)
34AQI (US)
45AQI (US)
39AQI (US)
30AQI (US)
37AQI (US)
32AQI (US)
No. of days
202637AQI (US)
Highest AQI (US) recorded in
February45AQI (US)
Lowest AQI (US) recorded in
April30AQI (US)
202531AQI (US)
Highest AQI (US) recorded in
August46AQI (US)
Lowest AQI (US) recorded in
May20AQI (US)
202429AQI (US)
Highest AQI (US) recorded in
February34AQI (US)
Lowest AQI (US) recorded in
November18AQI (US)
202337AQI (US)
Highest AQI (US) recorded in
June71AQI (US)
Lowest AQI (US) recorded in
October28AQI (US)
202233AQI (US)
Highest AQI (US) recorded in
May37AQI (US)
Lowest AQI (US) recorded in
August21AQI (US)
202133AQI (US)
Highest AQI (US) recorded in
August40AQI (US)
Lowest AQI (US) recorded in
October25AQI (US)
202030AQI (US)
Highest AQI (US) recorded in
May36AQI (US)
Lowest AQI (US) recorded in
October22AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Peterborough's annual 2026 AQI (US) (37) shows an average percentage change of 15.7% (worsened AQI (US)) compared to previous years: 2020 (30), 2021 (33), 2022 (33), 2023 (37), 2024 (29), 2025 (31).