| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | -1°F | 20°F | 9°F | 0.4" |
| February | 1°F | 24°F | 12°F | 0.4" |
| March | 18°F | 39°F | 28°F | 1.1" |
| April | 31°F | 55°F | 42°F | 2.1" |
| May | 43°F | 68°F | 55°F | 3.1" |
| June | 53°F | 77°F | 65°F | 4.1" |
| July | 58°F | 82°F | 70°F | 4.3" |
| August | 56°F | 79°F | 67°F | 2.6" |
| September | 48°F | 71°F | 59°F | 2.7" |
| October | 36°F | 56°F | 45°F | 2.6" |
| November | 22°F | 40°F | 30°F | 0.8" |
| December | 6°F | 23°F | 14°F | 0.6" |
| Index | Callaway | Minnesota | National |
| Air quality index | 33 | 35 | 50 |
| Pollution index | 345,337 | 1,833,628 | 5,066,862 |
| 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 | 0.000% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.001% |
| Mercury | 0.000% |
| City, State | Population | Air Quality Index | National Avg. |
| Detroit Lakes, MN | 9,060 | 33 | 34% |
| Waubun, MN | 509 | 33 | 34% |
| Lake Park, MN | 740 | 33 | 34% |
| Ogema, MN | 189 | 33 | 34% |
| Audubon, MN | 567 | 33 | 34% |
| Callaway, MN | 210 | 33 | 34% |
| City, State | Population | Air Quality Index | National Avg. |
| Animas, NM | 210 | 12 | 76% |
| Lynch, NE | 210 | 36 | 28% |
| Foss, OK | 210 | 43 | 14% |
| Starrucca, PA | 210 | 38 | 24% |
| Jamestown, LA | 210 | 39 | 22% |
| Callaway, MN | 210 | 33 | 34% |
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