| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 7°F | 26°F | 16°F | n/a |
| February | 9°F | 28°F | 17°F | n/a |
| March | 20°F | 41°F | 29°F | n/a |
| April | 31°F | 51°F | 39°F | n/a |
| May | 47°F | 69°F | 57°F | n/a |
| June | 57°F | 78°F | 66°F | n/a |
| July | 64°F | 85°F | 74°F | n/a |
| August | 56°F | 82°F | 68°F | n/a |
| September | 44°F | 74°F | 58°F | n/a |
| October | 37°F | 57°F | 46°F | n/a |
| November | 22°F | 41°F | 30°F | n/a |
| December | 12°F | 29°F | 19°F | n/a |
| Index | Monango | North Dakota | National |
| Air quality index | 20 | 35 | 42 |
| Pollution index | 261,954 | 1,038,665 | 2,726,193 |
| Measurement | Total |
| Days measured | 122 |
| Days with good air quality | 112 |
| Days with moderate air quality | 10 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.004% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.001% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Edgeley, ND | 572 | 20 | 60.0% |
| Fullerton, ND | 62 | 20 | 60.0% |
| Ellendale, ND | 1,054 | 20 | 60.0% |
| LaMoure, ND | 681 | 20 | 60.0% |
| Berlin, ND | 40 | 20 | 60.0% |
| Monango, ND | 15 | 20 | 60.0% |
| City | Population | Air Quality Index | National Avg. |
| Nikolski, AK | 15 | 31 | 38.0% |
| Scott, AR | 15 | 45 | 10.0% |
| Eagleville, CA | 15 | 29 | 42.0% |
| Frederick, KS | 15 | 40 | 20.0% |
| Concord, KY | 15 | 14 | 72.0% |
| Monango, ND | 15 | 20 | 60.0% |
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