Dayan, Yunnan, China 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
Dayan, Yunnan, China
AQI Trends: Highest and Lowest
Same Day Analysis (4th June):
On this day, AQI across the 5 years varied significantly: 2026 ranks the most lowest AQI at 24 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
Dayan, Yunnan, China
5 AM3rd Jun 2026
7 PM
4 AM4th Jun 2026
29AQI
14AQI
27AQI
18AQI
In the last 24 hours,
Dayan's AQI reached its highest point of 29 at 12 PM during the Day, while the lowest point, 14, was recorded at 4 PM during the Day between 3rd Jun and 4th Jun 2026.
Day & Night AQI Trend : May - Jun 2026
Dayan, Yunnan, China
16°C9/24°C
15°C10/21°C
14°C10/18°C
16°C9/23°C
14°C10/19°C
11°C10/12°C
14°C10/19°C
16°C9/24°C
17°C11/23°C
17°C11/23°C
18°C11/24°C
18°C13/24°C
18°C12/23°C
18°C12/24°C
18°C12/27°C
19°C12/27°C
21°C14/29°C
20°C14/26°C
20°C12/29°C
21°C13/30°C
21°C13/29°C
21°C14/27°C
20°C14/25°C
19°C14/26°C
15°C14/19°C
17°C13/23°C
19°C15/23°C
19°C15/25°C
20°C15/26°C
17°C14/22°C
35AQI
28AQI
38AQI
31AQI
2026 Days Vs Air Quality
Dayan, Yunnan, China
92%
143
8%
12
Total number of days with different AQI categories in last 155 days in 2026 (210 days remaining)
Under WHO’s Safe Air Quality Limits: 92%
Health Risk Level:
Very Low
In 2026, 92% 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
Dayan, Yunnan, China
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
23AQI (US)
28AQI (US)
31AQI (US)
32AQI (US)
28AQI (US)
25AQI (US)
30AQI (US)
27AQI (US)
28AQI (US)
25AQI (US)
24AQI (US)
29AQI (US)
32AQI (US)
23AQI (US)
27AQI (US)
19AQI (US)
28AQI (US)
24AQI (US)
23AQI (US)
18AQI (US)
17AQI (US)
25AQI (US)
29AQI (US)
24AQI (US)
19AQI (US)
26AQI (US)
35AQI (US)
21AQI (US)
20AQI (US)
21AQI (US)
26AQI (US)
22AQI (US)
41AQI (US)
65AQI (US)
66AQI (US)
34AQI (US)
25AQI (US)
22AQI (US)
19AQI (US)
18AQI (US)
26AQI (US)
26AQI (US)
20AQI (US)
22AQI (US)
18AQI (US)
24AQI (US)
28AQI (US)
34AQI (US)
28AQI (US)
40AQI (US)
33AQI (US)
24AQI (US)
46AQI (US)
28AQI (US)
29AQI (US)
29AQI (US)
28AQI (US)
36AQI (US)
40AQI (US)
33AQI (US)
30AQI (US)
29AQI (US)
26AQI (US)
28AQI (US)
52AQI (US)
52AQI (US)
46AQI (US)
46AQI (US)
25AQI (US)
35AQI (US)
51AQI (US)
46AQI (US)
21AQI (US)
15AQI (US)
27AQI (US)
29AQI (US)
23AQI (US)
24AQI (US)
25AQI (US)
26AQI (US)
34AQI (US)
17AQI (US)
16AQI (US)
23AQI (US)
23AQI (US)
30AQI (US)
36AQI (US)
20AQI (US)
15AQI (US)
20AQI (US)
19AQI (US)
20AQI (US)
18AQI (US)
21AQI (US)
31AQI (US)
30AQI (US)
25AQI (US)
20AQI (US)
16AQI (US)
18AQI (US)
16AQI (US)
26AQI (US)
38AQI (US)
26AQI (US)
25AQI (US)
20AQI (US)
25AQI (US)
25AQI (US)
25AQI (US)
18AQI (US)
31AQI (US)
32AQI (US)
21AQI (US)
35AQI (US)
35AQI (US)
26AQI (US)
26AQI (US)
17AQI (US)
15AQI (US)
24AQI (US)
18AQI (US)
15AQI (US)
16AQI (US)
16AQI (US)
23AQI (US)
17AQI (US)
25AQI (US)
26AQI (US)
18AQI (US)
32AQI (US)
21AQI (US)
16AQI (US)
20AQI (US)
21AQI (US)
24AQI (US)
51AQI (US)
53AQI (US)
51AQI (US)
53AQI (US)
59AQI (US)
63AQI (US)
60AQI (US)
50AQI (US)
45AQI (US)
49AQI (US)
35AQI (US)
22AQI (US)
24AQI (US)
33AQI (US)
18AQI (US)
17AQI (US)
16AQI (US)
25AQI (US)
22AQI (US)
24AQI (US)
25AQI (US)
31AQI (US)
30AQI (US)
24AQI (US)
32AQI (US)
22AQI (US)
No. of days
202628AQI (US)
Highest AQI (US) recorded in
May32AQI (US)
Lowest AQI (US) recorded in
June22AQI (US)
202551AQI (US)
Highest AQI (US) recorded in
January68AQI (US)
Lowest AQI (US) recorded in
November32AQI (US)
202451AQI (US)
Highest AQI (US) recorded in
April66AQI (US)
Lowest AQI (US) recorded in
October40AQI (US)
202354AQI (US)
Highest AQI (US) recorded in
February81AQI (US)
Lowest AQI (US) recorded in
July38AQI (US)
202255AQI (US)
Highest AQI (US) recorded in
March71AQI (US)
Lowest AQI (US) recorded in
June40AQI (US)
202150AQI (US)
Highest AQI (US) recorded in
March77AQI (US)
Lowest AQI (US) recorded in
June35AQI (US)
202045AQI (US)
Highest AQI (US) recorded in
April64AQI (US)
Lowest AQI (US) recorded in
June34AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Dayan's annual 2026 AQI (US) (28) shows an average percentage change of -44.8% (improved AQI (US)) compared to previous years: 2020 (45), 2021 (50), 2022 (55), 2023 (54), 2024 (51), 2025 (51).