Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 8°F | 28°F | 18°F | 0.2" |
February | 9°F | 32°F | 20°F | 0.2" |
March | 20°F | 47°F | 31°F | 0.4" |
April | 28°F | 56°F | 41°F | 1.3" |
May | 38°F | 68°F | 53°F | 3.3" |
June | 49°F | 78°F | 63°F | 2.9" |
July | 55°F | 87°F | 70°F | 2.2" |
August | 53°F | 85°F | 68°F | 2.0" |
September | 44°F | 76°F | 59°F | 1.9" |
October | 33°F | 60°F | 45°F | 1.2" |
November | 19°F | 44°F | 30°F | 0.2" |
December | 8°F | 29°F | 18°F | 0.2" |
Index | Glen Ullin | North Dakota | National |
Air quality index | 33 | 35 | 42 |
Pollution index | 605,787 | 1,038,665 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 354 |
Days with moderate air quality | 11 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.000% |
Benzene | 0.010% |
Carbon Tetrachloride | 0.001% |
Lead | 0.001% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Hebron, ND | 780 | 33 | 34.0% |
Glen Ullin, ND | 716 | 33 | 34.0% |
City | Population | Air Quality Index | National Avg. |
Tyronza, AR | 716 | 45 | 10.0% |
Stillmore, GA | 716 | 47 | 6.0% |
Green Valley, IL | 716 | 41 | 18.0% |
Windfall City, IN | 716 | 42 | 16.0% |
Brookfield, MA | 716 | 40 | 20.0% |
Glen Ullin, ND | 716 | 33 | 34.0% |