Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 3°F | 20°F | 11°F | 5.3" |
February | 4°F | 22°F | 12°F | 1.7" |
March | 21°F | 38°F | 28°F | 2.5" |
April | 34°F | 54°F | 43°F | 3.2" |
May | 46°F | 69°F | 56°F | 4.5" |
June | 56°F | 77°F | 66°F | 7.4" |
July | 60°F | 83°F | 71°F | 6.3" |
August | 57°F | 79°F | 67°F | 2.9" |
September | 49°F | 72°F | 60°F | 3.7" |
October | 38°F | 57°F | 46°F | 7.1" |
November | 24°F | 41°F | 32°F | 0.9" |
December | 7°F | 23°F | 15°F | 0.7" |
Index | Colfax | North Dakota | National |
Air quality index | 33 | 35 | 42 |
Pollution index | 765,054 | 1,038,665 | 2,726,193 |
Measurement | Total |
Days measured | 363 |
Days with good air quality | 327 |
Days with moderate air quality | 34 |
Days w/ poor A.Q. for sensitive groups | 1 |
Days with unhealthy air quality | 1 |
Pollutant | Total |
Arsenic | 0.003% |
Benzene | 0.010% |
Carbon Tetrachloride | 0.001% |
Lead | 0.010% |
Mercury | 0.001% |
City | Population | Air Quality Index | National Avg. |
Comstock, MN | 72 | 33 | 34.0% |
Kent, MN | 40 | 33 | 34.0% |
Dwight, ND | 65 | 33 | 34.0% |
Wahpeton, ND | 7,772 | 33 | 34.0% |
Wolverton, MN | 175 | 33 | 34.0% |
Colfax, ND | 266 | 33 | 34.0% |
City | Population | Air Quality Index | National Avg. |
Mentasta Lake, AK | 266 | 38 | 24.0% |
Cassel, CA | 266 | 42 | 16.0% |
Hiouchi, CA | 266 | 20 | 60.0% |
Pineland, FL | 266 | 36 | 28.0% |
Secor, IL | 266 | 44 | 12.0% |
Colfax, ND | 266 | 33 | 34.0% |