| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 2°F | 26°F | 14°F | 0.6" |
| February | 5°F | 30°F | 17°F | 0.7" |
| March | 19°F | 45°F | 31°F | 0.9" |
| April | 31°F | 61°F | 45°F | 2.3" |
| May | 43°F | 72°F | 57°F | 3.5" |
| June | 53°F | 82°F | 68°F | 3.6" |
| July | 58°F | 88°F | 73°F | 3.7" |
| August | 55°F | 84°F | 69°F | 2.5" |
| September | 46°F | 78°F | 61°F | 2.1" |
| October | 34°F | 63°F | 47°F | 2.0" |
| November | 19°F | 47°F | 32°F | 0.6" |
| December | 6°F | 28°F | 17°F | 1.0" |
| Index | Aberdeen | South Dakota | National |
| Air quality index | 20 | 36 | 50 |
| Pollution index | 658,408 | 463,983 | 5,066,862 |
| 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 | 0.010% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.010% |
| Mercury | 0.000% |
| City, State | Population | Air Quality Index | National Avg. |
| Columbia, SD | 149 | 20 | 60% |
| Wetonka, SD | 3 | 20 | 60% |
| Stratford, SD | 65 | 20 | 60% |
| Bath, SD | 242 | 20 | 60% |
| Warner, SD | 454 | 20 | 60% |
| Aberdeen, SD | 27,783 | 20 | 60% |
| City, State | Population | Air Quality Index | National Avg. |
| Sahuarita, AZ | 27,780 | 47 | 6% |
| Benicia, CA | 27,780 | 40 | 20% |
| Melrose, MA | 27,787 | 43 | 14% |
| Saugus, MA | 27,773 | 43 | 14% |
| Shaker Heights, OH | 27,773 | 50 | = 100 |
| Aberdeen, SD | 27,783 | 20 | 60% |
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