Leon I, Leon, Castille Leon, Spain 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
Leon I, Leon, Castille Leon, Spain
AQI Trends: Highest and Lowest
Same Day Analysis (3rd June):
On this day, AQI across the 5 years varied significantly: 2026 ranks the most lowest AQI at 20 of Good air quality, showing improvement over 2025, 2024, 2023 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 3rd Jun - 4th Jun 2026
Leon I, Leon, Castille Leon, Spain
6 AM3rd Jun 2026
9 PM
5 AM4th Jun 2026
29AQI
8AQI
26AQI
14AQI
In the last 24 hours,
Leon I's AQI reached its highest point of 29 at 7 PM during the Day, while the lowest point, 8, was recorded at 8 AM during the Day between 3rd Jun and 4th Jun 2026.
Day & Night AQI Trend : May - Jun 2026
Leon I, Leon, Castille Leon, Spain
9°C1/15°C
11°C6/17°C
9°C6/13°C
9°C4/14°C
9°C5/13°C
9°C5/14°C
9°C6/13°C
11°C5/16°C
9°C3/15°C
7°C3/12°C
8°C0/15°C
11°C6/17°C
11°C5/18°C
13°C7/20°C
15°C7/23°C
18°C11/27°C
21°C13/29°C
20°C12/27°C
20°C13/28°C
20°C13/27°C
20°C13/28°C
20°C14/30°C
22°C14/30°C
22°C15/30°C
22°C14/30°C
19°C13/27°C
19°C12/27°C
17°C11/23°C
16°C7/26°C
14°C8/21°C
33AQI
22AQI
37AQI
29AQI
2026 Days Vs Air Quality
Leon I, Leon, Castille Leon, Spain
91%
138
9%
13
Total number of days with different AQI categories in last 155 days in 2026 (210 days remaining)
Under WHO’s Safe Air Quality Limits: 91%
Health Risk Level:
Very Low
In 2026, 91% of 155 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
Leon I, Leon, Castille Leon, Spain
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
45AQI (US)
43AQI (US)
56AQI (US)
21AQI (US)
20AQI (US)
24AQI (US)
38AQI (US)
38AQI (US)
12AQI (US)
13AQI (US)
40AQI (US)
31AQI (US)
27AQI (US)
17AQI (US)
24AQI (US)
30AQI (US)
28AQI (US)
15AQI (US)
23AQI (US)
42AQI (US)
24AQI (US)
22AQI (US)
37AQI (US)
34AQI (US)
32AQI (US)
42AQI (US)
25AQI (US)
30AQI (US)
35AQI (US)
36AQI (US)
34AQI (US)
35AQI (US)
29AQI (US)
33AQI (US)
34AQI (US)
28AQI (US)
34AQI (US)
27AQI (US)
30AQI (US)
45AQI (US)
26AQI (US)
34AQI (US)
35AQI (US)
18AQI (US)
37AQI (US)
38AQI (US)
21AQI (US)
27AQI (US)
25AQI (US)
26AQI (US)
28AQI (US)
36AQI (US)
41AQI (US)
48AQI (US)
55AQI (US)
60AQI (US)
68AQI (US)
51AQI (US)
19AQI (US)
28AQI (US)
51AQI (US)
52AQI (US)
60AQI (US)
56AQI (US)
11AQI (US)
15AQI (US)
24AQI (US)
23AQI (US)
18AQI (US)
33AQI (US)
35AQI (US)
31AQI (US)
9AQI (US)
18AQI (US)
24AQI (US)
31AQI (US)
47AQI (US)
44AQI (US)
48AQI (US)
52AQI (US)
64AQI (US)
59AQI (US)
49AQI (US)
45AQI (US)
15AQI (US)
21AQI (US)
21AQI (US)
26AQI (US)
26AQI (US)
15AQI (US)
20AQI (US)
18AQI (US)
24AQI (US)
37AQI (US)
44AQI (US)
26AQI (US)
42AQI (US)
40AQI (US)
44AQI (US)
50AQI (US)
27AQI (US)
14AQI (US)
16AQI (US)
22AQI (US)
22AQI (US)
18AQI (US)
19AQI (US)
21AQI (US)
35AQI (US)
56AQI (US)
23AQI (US)
36AQI (US)
22AQI (US)
31AQI (US)
34AQI (US)
23AQI (US)
38AQI (US)
28AQI (US)
28AQI (US)
36AQI (US)
16AQI (US)
15AQI (US)
19AQI (US)
28AQI (US)
35AQI (US)
26AQI (US)
29AQI (US)
22AQI (US)
23AQI (US)
17AQI (US)
16AQI (US)
23AQI (US)
36AQI (US)
35AQI (US)
38AQI (US)
38AQI (US)
38AQI (US)
39AQI (US)
44AQI (US)
43AQI (US)
44AQI (US)
37AQI (US)
34AQI (US)
35AQI (US)
30AQI (US)
37AQI (US)
23AQI (US)
13AQI (US)
12AQI (US)
17AQI (US)
20AQI (US)
30AQI (US)
35AQI (US)
34AQI (US)
30AQI (US)
30AQI (US)
16AQI (US)
No. of days
202631AQI (US)
Highest AQI (US) recorded in
February35AQI (US)
Lowest AQI (US) recorded in
June16AQI (US)
202533AQI (US)
Highest AQI (US) recorded in
August46AQI (US)
Lowest AQI (US) recorded in
April21AQI (US)
202439AQI (US)
Highest AQI (US) recorded in
January56AQI (US)
Lowest AQI (US) recorded in
October29AQI (US)
202341AQI (US)
Highest AQI (US) recorded in
September71AQI (US)
Lowest AQI (US) recorded in
July30AQI (US)
202239AQI (US)
Highest AQI (US) recorded in
July55AQI (US)
Lowest AQI (US) recorded in
September30AQI (US)
202130AQI (US)
Highest AQI (US) recorded in
November43AQI (US)
Lowest AQI (US) recorded in
October24AQI (US)
202026AQI (US)
Highest AQI (US) recorded in
March34AQI (US)
Lowest AQI (US) recorded in
December21AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Leon I's annual 2026 AQI (US) (31) shows an average percentage change of -8.1% (improved AQI (US)) compared to previous years: 2020 (26), 2021 (30), 2022 (39), 2023 (41), 2024 (39), 2025 (33).