| 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 | 42 |
| Pollution index | 658,408 | 345,623 | 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 | 0.010% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.010% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Columbia, SD | 166 | 20 | 60.0% |
| Wetonka, SD | 5 | 20 | 60.0% |
| Stratford, SD | 42 | 20 | 60.0% |
| Bath, SD | 217 | 20 | 60.0% |
| Warner, SD | 500 | 20 | 60.0% |
| Aberdeen, SD | 28,315 | 20 | 60.0% |
| City | Population | Air Quality Index | National Avg. |
| Saugus, MA | 28,326 | 43 | 14.0% |
| Harrison, NY | 28,363 | 51 | 2.0% |
| Fort Saskatchewan, AB | 28,368 | n/a | |
| Englewood, NJ | 28,390 | 51 | 2.0% |
| Temescal Valley, CA | 28,420 | 89 | 78.0% |
| Aberdeen, SD | 28,315 | 20 | 60.0% |
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