| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 39°F | 60°F | 48°F | 3.4" |
| February | 42°F | 62°F | 51°F | 2.1" |
| March | 50°F | 72°F | 60°F | 6.1" |
| April | 57°F | 78°F | 67°F | 2.8" |
| May | 67°F | 85°F | 75°F | 4.2" |
| June | 75°F | 94°F | 84°F | 4.1" |
| July | 77°F | 96°F | 86°F | 2.4" |
| August | 78°F | 97°F | 86°F | 2.6" |
| September | 70°F | 89°F | 79°F | 5.0" |
| October | 58°F | 79°F | 68°F | 5.0" |
| November | 50°F | 71°F | 59°F | 2.7" |
| December | 39°F | 60°F | 48°F | 2.3" |
| Index | City Center District | Dallas | Texas |
| Air quality index | 51 | 51 | 52 |
| Pollution index | 3,706,540 | 3,706,540 | 2,009,300 |
| 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. |
| Irving, TX | 240,475 | 51 | 2.0% |
| Garland, TX | 238,622 | 51 | 2.0% |
| Seagoville, TX | 16,726 | 51 | 2.0% |
| Mesquite CDP, TX | 629 | 51 | 2.0% |
| Grand Prairie, TX | 193,835 | 51 | 2.0% |
| Dallas, TX | 1,338,846 | 51 | 2.0% |
| City | Population | Air Quality Index | National Avg. |
| Calgary, AB | 1,371,990 | n/a | |
| San Diego, CA | 1,414,545 | 64 | 28.0% |
| San Antonio, TX | 1,529,133 | 49 | 2.0% |
| Philadelphia, PA | 1,581,531 | 51 | 2.0% |
| Ottawa, ON | 1,058,126 | n/a | |
| Dallas, TX | 1,338,846 | 51 | 2.0% |
Here are the best places to live in Texas
Check out the 10 most dangerous cities in Texas
Most Dangerous States In The US
These are the 10 cheapest cities in Texas