Washington, District of Columbia, United States 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
Washington, District of Columbia, United States
AQI Trends: Highest and Lowest
Same Day Analysis (NaNth undefined ):
On this day, AQI across the 0 years varied significantly: 2025 ranks 1st highest AQI at 0 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

2025 Days Vs Air Quality
Washington, District of Columbia, United States
89%
85
11%
11
Total number of days with different AQI categories in last 182 days in 2025 (183 days remaining)
Under WHO’s Safe Air Quality Limits: 89%
Health Risk Level:
Low
In 2025, 89% of 182 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Washington, District of Columbia, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
22AQI
36AQI
56AQI
38AQI
29AQI
20AQI
25AQI
36AQI
32AQI
41AQI
40AQI
19AQI
22AQI
20AQI
24AQI
24AQI
19AQI
20AQI
37AQI
37AQI
15AQI
21AQI
40AQI
55AQI
42AQI
32AQI
41AQI
32AQI
50AQI
37AQI
40AQI
13AQI
21AQI
35AQI
36AQI
43AQI
46AQI
42AQI
25AQI
27AQI
25AQI
21AQI
36AQI
23AQI
23AQI
35AQI
38AQI
25AQI
31AQI
38AQI
50AQI
32AQI
19AQI
22AQI
21AQI
19AQI
15AQI
14AQI
14AQI
17AQI
23AQI
31AQI
19AQI
20AQI
33AQI
31AQI
22AQI
27AQI
33AQI
48AQI
54AQI
51AQI
37AQI
45AQI
41AQI
42AQI
54AQI
61AQI
64AQI
49AQI
42AQI
23AQI
27AQI
41AQI
31AQI
24AQI
43AQI
46AQI
55AQI
58AQI
58AQI
51AQI
38AQI
31AQI
43AQI
40AQI
36AQI
31AQI
28AQI
43AQI
No. of days
202534AQI
Highest AQI recorded in
June43AQI
Lowest AQI recorded in
May28AQI
Most & Least Polluted Years Over the Last 1 Years
Washington's annual 2025 AQI (34) shows an average percentage change of NaN% (improved AQI) compared to previous years: .