| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 43°F | 66°F | 54°F | 3.6" |
| February | 46°F | 70°F | 57°F | 2.9" |
| March | 52°F | 76°F | 64°F | 3.6" |
| April | 59°F | 82°F | 70°F | 4.3" |
| May | 66°F | 88°F | 76°F | 5.5" |
| June | 73°F | 94°F | 83°F | 4.6" |
| July | 75°F | 95°F | 84°F | 5.1" |
| August | 75°F | 96°F | 84°F | 7.0" |
| September | 70°F | 92°F | 80°F | 4.2" |
| October | 59°F | 85°F | 71°F | 6.1" |
| November | 51°F | 76°F | 62°F | 3.4" |
| December | 45°F | 67°F | 55°F | 4.1" |
| Index | Roman Forest | Texas | National |
| Air quality index | 52 | 52 | 42 |
| Pollution index | 99,643 | 2,009,300 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 171 |
| Days with moderate air quality | 163 |
| Days w/ poor A.Q. for sensitive groups | 26 |
| Days with unhealthy air quality | 4 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.001% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Porter Heights, TX | 1,343 | 52 | 4.0% |
| Patton Village, TX | 1,460 | 52 | 4.0% |
| Humble, TX | 15,819 | 52 | 4.0% |
| Atascocita, TX | 81,860 | 52 | 4.0% |
| Plum Grove, TX | 1,074 | 52 | 4.0% |
| Roman Forest, TX | 1,814 | 52 | 4.0% |
| City | Population | Air Quality Index | National Avg. |
| Calhoun Falls, SC | 1,814 | 31 | 38.0% |
| Idalou, TX | 1,814 | 25 | 50.0% |
| Jenkins, KY | 1,815 | 45 | 10.0% |
| Pierre Part, LA | 1,815 | 45 | 10.0% |
| Victory Lakes, NJ | 1,813 | 40 | 20.0% |
| Roman Forest, TX | 1,814 | 52 | 4.0% |
Here are the best places to live in Texas
These are the 10 cheapest cities in Texas
Check out the 10 safest cities in Texas
Check out the 10 most dangerous cities in Texas