| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 6°F | 25°F | 15°F | 6.8" |
| February | 10°F | 31°F | 20°F | 2.6" |
| March | 22°F | 45°F | 33°F | 1.9" |
| April | 34°F | 59°F | 46°F | 2.3" |
| May | 45°F | 70°F | 57°F | 4.2" |
| June | 56°F | 80°F | 68°F | 5.5" |
| July | 60°F | 84°F | 72°F | 3.6" |
| August | 57°F | 81°F | 69°F | 3.9" |
| September | 49°F | 75°F | 61°F | 2.2" |
| October | 36°F | 61°F | 48°F | 2.5" |
| November | 24°F | 46°F | 34°F | 1.2" |
| December | 10°F | 28°F | 19°F | 3.4" |
| Index | Trent | South Dakota | National |
| Air quality index | 36 | 36 | 42 |
| Pollution index | 2,464,570 | 345,623 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 321 |
| Days with moderate air quality | 43 |
| Days w/ poor A.Q. for sensitive groups | 1 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.030% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.020% |
| Mercury | 0.001% |
| City | Population | Air Quality Index | National Avg. |
| Baltic, SD | 1,169 | 36 | 28.0% |
| Dell Rapids, SD | 3,678 | 36 | 28.0% |
| Ihlen, MN | 48 | 36 | 28.0% |
| Garretson, SD | 1,493 | 36 | 28.0% |
| Chester, SD | 285 | 36 | 28.0% |
| Trent, SD | 301 | 36 | 28.0% |
| City | Population | Air Quality Index | National Avg. |
| Los Berros, CA | 301 | 46 | 8.0% |
| Munson, FL | 301 | 41 | 18.0% |
| Worthington Springs, FL | 301 | 35 | 30.0% |
| Pitts, GA | 301 | 39 | 22.0% |
| Blue Mound, KS | 301 | 22 | 56.0% |
| Trent, SD | 301 | 36 | 28.0% |
Here are the best places to live in South Dakota
See the best places to live in Trent
Most Dangerous Cities In The US
Check out the 10 safest cities in South Dakota