| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 35°F | 57°F | 45°F | 2.3" |
| February | 39°F | 61°F | 48°F | 1.6" |
| March | 47°F | 69°F | 57°F | 1.7" |
| April | 55°F | 77°F | 65°F | 3.7" |
| May | 62°F | 83°F | 72°F | 3.2" |
| June | 71°F | 91°F | 80°F | 2.8" |
| July | 74°F | 95°F | 83°F | 1.2" |
| August | 74°F | 96°F | 84°F | 2.0" |
| September | 66°F | 89°F | 76°F | 1.0" |
| October | 55°F | 79°F | 65°F | 2.9" |
| November | 46°F | 68°F | 56°F | 2.1" |
| December | 38°F | 58°F | 47°F | 2.4" |
| Index | Caddo Mills | Texas | National |
| Air quality index | 51 | 52 | 42 |
| Pollution index | 37,723,200 | 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 | 0.060% |
| Benzene | 0.290% |
| Carbon Tetrachloride | 0.220% |
| Lead | 0.230% |
| Mercury | 0.020% |
| City | Population | Air Quality Index | National Avg. |
| Josephine, TX | 1,488 | 51 | 2.0% |
| Nevada, TX | 872 | 51 | 2.0% |
| Union Valley, TX | 528 | 51 | 2.0% |
| Neylandville, TX | 170 | 51 | 2.0% |
| Fate, TX | 14,300 | 51 | 2.0% |
| Caddo Mills, TX | 1,666 | 51 | 2.0% |
| City | Population | Air Quality Index | National Avg. |
| Shelby, MS | 1,666 | 43 | 14.0% |
| Beulaville, NC | 1,666 | 42 | 16.0% |
| Stedman, NC | 1,666 | 41 | 18.0% |
| Bedford, NY | 1,666 | 43 | 14.0% |
| Hollis, OK | 1,666 | 43 | 14.0% |
| Caddo Mills, TX | 1,666 | 51 | 2.0% |
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