| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 2°F | 20°F | 11°F | 0.7" |
| February | 4°F | 23°F | 12°F | 0.9" |
| March | 15°F | 35°F | 24°F | 2.3" |
| April | 29°F | 54°F | 40°F | 2.7" |
| May | 42°F | 68°F | 55°F | 4.5" |
| June | 52°F | 76°F | 63°F | 7.0" |
| July | 56°F | 80°F | 68°F | 3.6" |
| August | 53°F | 81°F | 66°F | 4.0" |
| September | 47°F | 72°F | 58°F | 5.1" |
| October | 34°F | 55°F | 43°F | 3.0" |
| November | 19°F | 38°F | 28°F | 1.5" |
| December | 4°F | 22°F | 13°F | 1.1" |
| Index | Lansford | North Dakota | National |
| Air quality index | 34 | 35 | 42 |
| Pollution index | 300,908 | 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 | 0.005% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.001% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Glenburn, ND | 502 | 34 | 32.0% |
| Grano, ND | 2 | 34 | 32.0% |
| Minot AFB, ND | 5,974 | 34 | 32.0% |
| Maxbass, ND | 101 | 34 | 32.0% |
| Mohall, ND | 655 | 34 | 32.0% |
| Lansford, ND | 204 | 34 | 32.0% |
| City | Population | Air Quality Index | National Avg. |
| Perla, AR | 204 | 38 | 24.0% |
| Bear Valley, CA | 204 | 48 | 4.0% |
| Bloomington, ID | 204 | 44 | 12.0% |
| Eldred, IL | 204 | 54 | 8.0% |
| Indianola, IL | 204 | 42 | 16.0% |
| Lansford, ND | 204 | 34 | 32.0% |
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