| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 38°F | 60°F | 47°F | 2.9" |
| February | 41°F | 64°F | 51°F | 1.6" |
| March | 49°F | 72°F | 60°F | 3.8" |
| April | 57°F | 78°F | 67°F | 3.5" |
| May | 64°F | 84°F | 74°F | 4.4" |
| June | 73°F | 93°F | 82°F | 4.4" |
| July | 76°F | 96°F | 85°F | 1.8" |
| August | 76°F | 98°F | 86°F | 1.6" |
| September | 69°F | 91°F | 79°F | 3.8" |
| October | 58°F | 81°F | 68°F | 4.1" |
| November | 49°F | 70°F | 58°F | 2.7" |
| December | 40°F | 60°F | 49°F | 2.5" |
| Index | DeSoto | Texas | National |
| Air quality index | 51 | 52 | 42 |
| Pollution index | 3,706,540 | 2,009,300 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 181 |
| Days with moderate air quality | 155 |
| Days w/ poor A.Q. for sensitive groups | 28 |
| Days with unhealthy air quality | 1 |
| Pollutant | Total |
| Arsenic | 0.002% |
| Benzene | 0.040% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.040% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Pecan Hill, TX | 570 | 51 | 2.0% |
| Balch Springs, TX | 25,123 | 51 | 2.0% |
| Ferris, TX | 2,842 | 51 | 2.0% |
| Lancaster, TX | 39,264 | 51 | 2.0% |
| Wilmer, TX | 4,698 | 51 | 2.0% |
| DeSoto, TX | 53,170 | 51 | 2.0% |
| City | Population | Air Quality Index | National Avg. |
| Wheaton, IL | 53,157 | 55 | 10.0% |
| St. Cloud, FL | 53,132 | 39 | 22.0% |
| Palm Desert, CA | 53,087 | 89 | 78.0% |
| Hoboken, NJ | 53,283 | 51 | 2.0% |
| Brandon, MB | 53,334 | n/a | |
| DeSoto, TX | 53,170 | 51 | 2.0% |
Here are the best places to live in Texas
Most Dangerous Cities In The US
See the best places to live in DeSoto
These are the 10 cheapest cities in Texas