| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 42°F | 67°F | 53°F | 2.4" |
| February | 47°F | 71°F | 57°F | 1.2" |
| March | 54°F | 78°F | 64°F | 2.5" |
| April | 60°F | 84°F | 71°F | 2.4" |
| May | 67°F | 89°F | 77°F | 4.4" |
| June | 73°F | 95°F | 83°F | 1.8" |
| July | 75°F | 97°F | 84°F | 2.3" |
| August | 75°F | 99°F | 86°F | 2.9" |
| September | 71°F | 93°F | 81°F | 3.2" |
| October | 62°F | 86°F | 73°F | 2.4" |
| November | 53°F | 76°F | 63°F | 1.5" |
| December | 45°F | 67°F | 55°F | 1.8" |
| Index | St James Place | San Antonio | Texas |
| Air quality index | 49 | 49 | 52 |
| Pollution index | 24,182,700 | 24,182,700 | 2,009,300 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 196 |
| Days with moderate air quality | 163 |
| Days w/ poor A.Q. for sensitive groups | 5 |
| Days with unhealthy air quality | 1 |
| Pollutant | Total |
| Arsenic | 0.310% |
| Benzene | 0.310% |
| Carbon Tetrachloride | 0.080% |
| Lead | 0.140% |
| Mercury | 0.230% |
| City | Population | Air Quality Index | National Avg. |
| Fair Oaks Ranch, TX | 10,753 | 49 | 2.0% |
| Lackland AFB, TX | 5,679 | 49 | 2.0% |
| Shavano Park, TX | 3,874 | 49 | 2.0% |
| Castle Hills, TX | 4,459 | 49 | 2.0% |
| Hill Country Village, TX | 635 | 49 | 2.0% |
| San Antonio, TX | 1,529,133 | 49 | 2.0% |
| City | Population | Air Quality Index | National Avg. |
| Philadelphia, PA | 1,581,531 | 51 | 2.0% |
| San Diego, CA | 1,414,545 | 64 | 28.0% |
| Phoenix, AZ | 1,658,422 | 74 | 48.0% |
| Calgary, AB | 1,371,990 | n/a | |
| Dallas, TX | 1,338,846 | 51 | 2.0% |
| San Antonio, TX | 1,529,133 | 49 | 2.0% |
Here are the best places to live in Texas
See the best places to live in San Antonio
Most Dangerous Cities In The US
Check out the 10 most dangerous cities in Texas