Grangeville, Idaho, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
February Air Quality Analysis
Grangeville, Idaho, United States
AQI Trends: Highest and Lowest
Same Day Analysis (15th February):
On this day, AQI across the 1 years varied significantly: 2026 ranks 1st highest AQI at 39 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 14th Feb - 15th Feb 2026
Grangeville, Idaho, United States
7 AM14th Feb 2026
4 PM
6 AM15th Feb 2026
72AQI
38AQI
51AQI
31AQI
In the last 24 hours,
Grangeville's AQI reached its highest point of 72 at 9 AM during the Day, while the lowest point, 31, was recorded at 10 PM during the Night between 14th Feb and 15th Feb 2026.
Day & Night AQI Trend : Jan - Feb 2026
Grangeville, Idaho, United States
-1°C-7/7°C
1°C-1/6°C
-3°C-5/4°C
-3°C-6/2°C
-4°C-7/1°C
-4°C-7/-1°C
-4°C-6/-1°C
-5°C-8/-1°C
-5°C-9/3°C
0°C-5/9°C
2°C-2/9°C
3°C-2/9°C
4°C-1/10°C
6°C1/14°C
7°C3/13°C
7°C3/15°C
4°C-1/12°C
7°C2/15°C
8°C3/16°C
8°C4/16°C
7°C2/16°C
7°C1/17°C
6°C4/8°C
3°C0/6°C
2°C0/8°C
2°C-3/9°C
2°C-2/10°C
4°C-1/11°C
4°C0/10°C
4°C0/8°C
48AQI
40AQI
44AQI
36AQI
2026 Days Vs Air Quality
Grangeville, Idaho, United States
93%
43
7%
3
Total number of days with different AQI categories in last 48 days in 2026 (317 days remaining)
Under WHO’s Safe Air Quality Limits: 93%
Health Risk Level:
Very Low
In 2026, 93% of 48 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
Grangeville, Idaho, United States
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
34AQI (US)
16AQI (US)
18AQI (US)
15AQI (US)
19AQI (US)
16AQI (US)
18AQI (US)
18AQI (US)
17AQI (US)
32AQI (US)
22AQI (US)
20AQI (US)
26AQI (US)
32AQI (US)
35AQI (US)
36AQI (US)
18AQI (US)
21AQI (US)
16AQI (US)
19AQI (US)
20AQI (US)
48AQI (US)
53AQI (US)
47AQI (US)
44AQI (US)
44AQI (US)
43AQI (US)
45AQI (US)
51AQI (US)
46AQI (US)
44AQI (US)
47AQI (US)
48AQI (US)
47AQI (US)
46AQI (US)
48AQI (US)
39AQI (US)
40AQI (US)
45AQI (US)
45AQI (US)
46AQI (US)
45AQI (US)
46AQI (US)
53AQI (US)
47AQI (US)
39AQI (US)
30AQI (US)
45AQI (US)
No. of days
202635AQI (US)
Highest AQI (US) recorded in
February45AQI (US)
Lowest AQI (US) recorded in
January30AQI (US)
202528AQI (US)
Highest AQI (US) recorded in
September43AQI (US)
Lowest AQI (US) recorded in
May18AQI (US)
Most & Least Polluted Years Over the Last 2 Years
Grangeville's annual 2026 AQI (US) (35) shows an average percentage change of 24.9% (worsened AQI (US)) compared to previous years: 2025 (28).