| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 42°F | 65°F | 52°F | 3.0" |
| February | 46°F | 69°F | 56°F | 1.5" |
| March | 53°F | 76°F | 63°F | 4.0" |
| April | 60°F | 82°F | 70°F | 2.9" |
| May | 66°F | 88°F | 76°F | 5.9" |
| June | 73°F | 95°F | 83°F | 3.4" |
| July | 75°F | 97°F | 85°F | 3.0" |
| August | 76°F | 99°F | 86°F | 2.2" |
| September | 71°F | 93°F | 80°F | 4.5" |
| October | 61°F | 84°F | 71°F | 3.9" |
| November | 52°F | 74°F | 62°F | 2.4" |
| December | 44°F | 65°F | 53°F | 2.5" |
| Index | Manor | Texas | National |
| Air quality index | 44 | 52 | 42 |
| Pollution index | 713,830 | 2,009,300 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 249 |
| Days with moderate air quality | 114 |
| Days w/ poor A.Q. for sensitive groups | 2 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.002% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.002% |
| Mercury | 0.002% |
| City | Population | Air Quality Index | National Avg. |
| Garfield, TX | 2,506 | 44 | 12.0% |
| Coupland, TX | 377 | 44 | 12.0% |
| Wells Branch, TX | 12,512 | 44 | 12.0% |
| Austin, TX | 965,872 | 44 | 12.0% |
| Hornsby Bend, TX | 8,553 | 44 | 12.0% |
| Manor, TX | 11,643 | 44 | 12.0% |
| City | Population | Air Quality Index | National Avg. |
| Maryville, MO | 11,641 | 43 | 14.0% |
| Mango, FL | 11,638 | 43 | 14.0% |
| Lethbridge County, AB | 11,635 | n/a | |
| Four Corners, TX | 11,634 | 52 | 4.0% |
| Largo, MD | 11,633 | 47 | 6.0% |
| Manor, TX | 11,643 | 44 | 12.0% |
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