Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 3°F | 20°F | 12°F | 1.4" |
February | 3°F | 22°F | 13°F | 3.7" |
March | 15°F | 35°F | 25°F | 5.3" |
April | 28°F | 50°F | 40°F | 1.0" |
May | 41°F | 63°F | 52°F | 2.6" |
June | 51°F | 72°F | 62°F | 3.5" |
July | 56°F | 77°F | 67°F | 2.5" |
August | 53°F | 77°F | 66°F | 1.5" |
September | 44°F | 68°F | 57°F | 2.6" |
October | 33°F | 53°F | 42°F | 1.1" |
November | 18°F | 35°F | 26°F | 1.9" |
December | 6°F | 22°F | 14°F | 2.5" |
Index | Columbus | North Dakota | National |
Air quality index | 34 | 35 | 42 |
Pollution index | 173,888 | 1,038,665 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 309 |
Days with moderate air quality | 53 |
Days w/ poor A.Q. for sensitive groups | 3 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.000% |
Benzene | 0.002% |
Carbon Tetrachloride | 0.000% |
Lead | 0.000% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Portal, ND | 132 | 34 | 32.0% |
Larson, ND | 0 | 34 | 32.0% |
Lignite, ND | 157 | 34 | 32.0% |
Noonan, ND | 180 | 34 | 32.0% |
Columbus, ND | 74 | 34 | 32.0% |
City | Population | Air Quality Index | National Avg. |
Port Alexander, AK | 74 | 20 | 60.0% |
Willow Creek, AK | 74 | 31 | 38.0% |
Woodruff, AZ | 74 | 44 | 12.0% |
Hornitos, CA | 74 | 48 | 4.0% |
Oakville, CA | 74 | 35 | 30.0% |
Columbus, ND | 74 | 34 | 32.0% |