| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 3°F | 21°F | 12°F | 1.3" |
| February | 6°F | 26°F | 15°F | 0.7" |
| March | 17°F | 38°F | 26°F | 1.1" |
| April | 28°F | 52°F | 39°F | 3.1" |
| May | 42°F | 67°F | 54°F | 5.1" |
| June | 52°F | 76°F | 63°F | 3.9" |
| July | 57°F | 79°F | 67°F | 4.9" |
| August | 55°F | 80°F | 67°F | 3.6" |
| September | 49°F | 73°F | 59°F | 3.7" |
| October | 35°F | 56°F | 44°F | 2.6" |
| November | 19°F | 38°F | 28°F | 0.8" |
| December | 4°F | 21°F | 12°F | 0.5" |
| Index | Max | North Dakota | National |
| Air quality index | 36 | 35 | 42 |
| Pollution index | 4,994,790 | 1,038,665 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 320 |
| Days with moderate air quality | 45 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.020% |
| Benzene | 0.070% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.040% |
| Mercury | 0.020% |
| City | Population | Air Quality Index | National Avg. |
| Benedict, ND | 94 | 36 | 28.0% |
| Douglas, ND | 101 | 36 | 28.0% |
| Garrison, ND | 1,708 | 36 | 28.0% |
| Max, ND | 297 | 36 | 28.0% |
| City | Population | Air Quality Index | National Avg. |
| Mosquito Lake, AK | 297 | 20 | 60.0% |
| County Line, AL | 297 | 53 | 6.0% |
| Noma, FL | 297 | 35 | 30.0% |
| Morganton, GA | 297 | 1 | 98.0% |
| Stilesville, IN | 297 | 54 | 8.0% |
| Max, ND | 297 | 36 | 28.0% |
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