Watford City, North Dakota, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
Watford City, North Dakota, United States
AQI Trends: Highest and Lowest
Same Day Analysis (30th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks the most lowest AQI at 15 of Good air quality, showing improvement over 2024, 2023, 2022 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 30th Oct - 31st Oct 2025
Watford City, North Dakota, United States
8 AM30th Oct 2025
7 PM
7 AM31st Oct 2025
22AQI
11AQI
29AQI
11AQI
In the last 24 hours,
Watford City's AQI reached its highest point of 29 at 7 PM during the Night, while the lowest point, 11, was recorded at 7 AM during the Night between 30th Oct and 31st Oct 2025.
Day & Night AQI Trend : Oct 2025
Watford City, North Dakota, United States
20°C14/27°C
18°C8/29°C
19°C8/32°C
14°C11/16°C
10°C5/14°C
6°C-2/15°C
8°C-2/18°C
13°C5/23°C
11°C2/20°C
11°C0/23°C
18°C11/27°C
8°C3/11°C
3°C1/6°C
5°C-1/10°C
9°C7/11°C
9°C8/9°C
9°C7/13°C
7°C3/12°C
7°C-1/18°C
6°C3/10°C
4°C-1/11°C
5°C0/14°C
7°C-1/18°C
8°C-1/19°C
11°C2/24°C
11°C7/16°C
7°C2/13°C
4°C-1/11°C
4°C-4/13°C
5°C2/8°C
--°C/°C
27AQI
20AQI
26AQI
21AQI
2025 Days Vs Air Quality
Watford City, North Dakota, United States
91%
276
6%
19
2%
7
0.3%
1
Total number of days with different AQI categories in last 304 days in 2025 (61 days remaining)
Under WHO’s Safe Air Quality Limits: 91%
Health Risk Level:
Very Low
In 2025, 91% of 304 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
Watford City, North Dakota, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
30AQI
40AQI
29AQI
33AQI
28AQI
26AQI
30AQI
31AQI
33AQI
31AQI
32AQI
32AQI
34AQI
41AQI
29AQI
25AQI
29AQI
28AQI
27AQI
28AQI
30AQI
30AQI
29AQI
30AQI
30AQI
30AQI
30AQI
31AQI
26AQI
25AQI
30AQI
26AQI
24AQI
23AQI
26AQI
25AQI
29AQI
27AQI
27AQI
30AQI
26AQI
27AQI
26AQI
26AQI
28AQI
28AQI
26AQI
20AQI
23AQI
22AQI
26AQI
29AQI
29AQI
30AQI
27AQI
22AQI
26AQI
22AQI
28AQI
28AQI
22AQI
22AQI
26AQI
25AQI
28AQI
26AQI
26AQI
30AQI
28AQI
23AQI
22AQI
21AQI
27AQI
16AQI
14AQI
17AQI
26AQI
26AQI
14AQI
16AQI
17AQI
21AQI
14AQI
19AQI
18AQI
16AQI
18AQI
16AQI
19AQI
22AQI
20AQI
22AQI
29AQI
21AQI
15AQI
13AQI
17AQI
16AQI
13AQI
13AQI
21AQI
17AQI
22AQI
13AQI
16AQI
20AQI
14AQI
14AQI
15AQI
15AQI
15AQI
12AQI
14AQI
18AQI
20AQI
25AQI
26AQI
31AQI
16AQI
14AQI
15AQI
16AQI
16AQI
17AQI
40AQI
16AQI
19AQI
18AQI
34AQI
50AQI
20AQI
19AQI
36AQI
31AQI
18AQI
20AQI
15AQI
20AQI
20AQI
14AQI
15AQI
13AQI
14AQI
16AQI
20AQI
17AQI
16AQI
16AQI
19AQI
23AQI
114AQI
110AQI
45AQI
48AQI
37AQI
30AQI
38AQI
46AQI
60AQI
62AQI
82AQI
174AQI
146AQI
79AQI
26AQI
25AQI
24AQI
30AQI
28AQI
26AQI
26AQI
42AQI
38AQI
30AQI
34AQI
23AQI
19AQI
18AQI
18AQI
15AQI
16AQI
17AQI
19AQI
21AQI
23AQI
23AQI
28AQI
25AQI
28AQI
34AQI
35AQI
89AQI
109AQI
39AQI
22AQI
31AQI
31AQI
60AQI
39AQI
25AQI
28AQI
22AQI
41AQI
28AQI
45AQI
33AQI
25AQI
24AQI
20AQI
43AQI
94AQI
118AQI
93AQI
84AQI
85AQI
63AQI
40AQI
29AQI
31AQI
24AQI
21AQI
146AQI
104AQI
39AQI
47AQI
28AQI
25AQI
31AQI
30AQI
25AQI
30AQI
37AQI
36AQI
27AQI
30AQI
24AQI
24AQI
27AQI
30AQI
35AQI
37AQI
37AQI
31AQI
31AQI
67AQI
79AQI
65AQI
17AQI
24AQI
34AQI
47AQI
57AQI
58AQI
53AQI
44AQI
40AQI
41AQI
42AQI
27AQI
56AQI
39AQI
19AQI
21AQI
27AQI
31AQI
48AQI
30AQI
45AQI
37AQI
39AQI
57AQI
42AQI
34AQI
21AQI
17AQI
43AQI
39AQI
16AQI
35AQI
12AQI
17AQI
31AQI
46AQI
42AQI
30AQI
19AQI
27AQI
27AQI
31AQI
21AQI
16AQI
25AQI
25AQI
18AQI
13AQI
15AQI
19AQI
24AQI
20AQI
19AQI
17AQI
14AQI
15AQI
30AQI
26AQI
21AQI
18AQI
24AQI
47AQI
39AQI
44AQI
42AQI
24AQI
No. of days
202531AQI
Highest AQI recorded in
June47AQI
Lowest AQI recorded in
April18AQI
202431AQI
Highest AQI recorded in
August44AQI
Lowest AQI recorded in
November19AQI
202335AQI
Highest AQI recorded in
September54AQI
Lowest AQI recorded in
December18AQI
202229AQI
Highest AQI recorded in
September35AQI
Lowest AQI recorded in
January25AQI
202133AQI
Highest AQI recorded in
July60AQI
Lowest AQI recorded in
November18AQI
202027AQI
Highest AQI recorded in
August31AQI
Lowest AQI recorded in
December21AQI
Most & Least Polluted Years Over the Last 6 Years
Watford City's annual 2025 AQI (31) shows an average percentage change of 2.3% (worsened AQI) compared to previous years: 2020 (27), 2021 (33), 2022 (29), 2023 (35), 2024 (31).