Vernal, Utah, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
March Air Quality Analysis
Vernal, Utah, United States
AQI Trends: Highest and Lowest
Same Day Analysis (4th March):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 31 of Good air quality, showing improvement over 2023 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 4th Mar - 5th Mar 2026
Vernal, Utah, United States
7 AM4th Mar 2026
5 PM
6 AM5th Mar 2026
49AQI
10AQI
44AQI
10AQI
In the last 24 hours,
Vernal's AQI reached its highest point of 49 at 9 AM during the Day, while the lowest point, 10, was recorded at 5 AM during the Night between 4th Mar and 5th Mar 2026.
Day & Night AQI Trend : Feb - Mar 2026
Vernal, Utah, United States
2°C-3/9°C
4°C-1/11°C
4°C0/11°C
4°C-1/10°C
5°C0/12°C
4°C0/9°C
2°C0/5°C
2°C-1/8°C
4°C1/8°C
4°C1/8°C
0°C-4/7°C
2°C-3/7°C
3°C-1/6°C
2°C-2/5°C
-2°C-7/2°C
-6°C-11/-2°C
-5°C-11/0°C
-6°C-12/2°C
-3°C-9/5°C
0°C-4/7°C
2°C-3/10°C
5°C-2/14°C
4°C-2/11°C
4°C-2/11°C
6°C0/12°C
7°C2/13°C
8°C3/14°C
6°C2/12°C
5°C-1/11°C
2°C-2/2°C
39AQI
27AQI
33AQI
28AQI
2026 Days Vs Air Quality
Vernal, Utah, United States
100%
63
Total number of days with different AQI categories in last 65 days in 2026 (300 days remaining)
Under WHO’s Safe Air Quality Limits: 100%
Health Risk Level:
Very Low
In 2026, 100% of 65 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
Vernal, Utah, United States
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
30AQI (US)
25AQI (US)
29AQI (US)
27AQI (US)
31AQI (US)
16AQI (US)
15AQI (US)
15AQI (US)
13AQI (US)
19AQI (US)
18AQI (US)
29AQI (US)
25AQI (US)
21AQI (US)
19AQI (US)
19AQI (US)
18AQI (US)
14AQI (US)
17AQI (US)
18AQI (US)
19AQI (US)
32AQI (US)
31AQI (US)
32AQI (US)
32AQI (US)
36AQI (US)
24AQI (US)
27AQI (US)
34AQI (US)
33AQI (US)
30AQI (US)
30AQI (US)
32AQI (US)
30AQI (US)
32AQI (US)
26AQI (US)
26AQI (US)
24AQI (US)
33AQI (US)
30AQI (US)
25AQI (US)
25AQI (US)
35AQI (US)
41AQI (US)
38AQI (US)
34AQI (US)
27AQI (US)
36AQI (US)
32AQI (US)
37AQI (US)
34AQI (US)
30AQI (US)
29AQI (US)
25AQI (US)
35AQI (US)
38AQI (US)
40AQI (US)
27AQI (US)
22AQI (US)
31AQI (US)
34AQI (US)
32AQI (US)
31AQI (US)
24AQI (US)
31AQI (US)
32AQI (US)
No. of days
202628AQI (US)
Highest AQI (US) recorded in
March32AQI (US)
Lowest AQI (US) recorded in
January24AQI (US)
202527AQI (US)
Highest AQI (US) recorded in
July37AQI (US)
Lowest AQI (US) recorded in
March21AQI (US)
202432AQI (US)
Highest AQI (US) recorded in
July44AQI (US)
Lowest AQI (US) recorded in
November19AQI (US)
202334AQI (US)
Highest AQI (US) recorded in
February47AQI (US)
Lowest AQI (US) recorded in
October27AQI (US)
202234AQI (US)
Highest AQI (US) recorded in
July39AQI (US)
Lowest AQI (US) recorded in
October27AQI (US)
202139AQI (US)
Highest AQI (US) recorded in
August69AQI (US)
Lowest AQI (US) recorded in
November28AQI (US)
202037AQI (US)
Highest AQI (US) recorded in
August46AQI (US)
Lowest AQI (US) recorded in
March29AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Vernal's annual 2026 AQI (US) (28) shows an average percentage change of -17.1% (improved AQI (US)) compared to previous years: 2020 (37), 2021 (39), 2022 (34), 2023 (34), 2024 (32), 2025 (27).