| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 38°F | 58°F | 47°F | 12.7" |
| February | 41°F | 61°F | 50°F | 7.9" |
| March | 49°F | 71°F | 59°F | 9.1" |
| April | 56°F | 78°F | 66°F | 10.8" |
| May | 64°F | 83°F | 73°F | 13.1" |
| June | 72°F | 91°F | 81°F | 7.9" |
| July | 74°F | 93°F | 82°F | 8.1" |
| August | 74°F | 94°F | 83°F | 12.4" |
| September | 67°F | 88°F | 77°F | 3.0" |
| October | 56°F | 79°F | 66°F | 8.0" |
| November | 48°F | 68°F | 57°F | 13.1" |
| December | 40°F | 60°F | 49°F | 11.8" |
| Index | Ore City | Texas | National |
| Air quality index | 37 | 52 | 42 |
| Pollution index | 3,084,680 | 2,009,300 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 289 |
| Days with moderate air quality | 67 |
| Days w/ poor A.Q. for sensitive groups | 9 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.002% |
| Benzene | 0.040% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.040% |
| Mercury | 0.020% |
| City | Population | Air Quality Index | National Avg. |
| Lone Star, TX | 2,052 | 37 | 26.0% |
| Pittsburg, TX | 4,770 | 37 | 26.0% |
| East Mountain, TX | 1,242 | 37 | 26.0% |
| Hughes Springs, TX | 1,577 | 37 | 26.0% |
| Gilmer, TX | 5,306 | 37 | 26.0% |
| Ore City, TX | 1,074 | 37 | 26.0% |
| City | Population | Air Quality Index | National Avg. |
| Tumbling Shoals, AR | 1,074 | 45 | 10.0% |
| Onset, MA | 1,074 | 36 | 28.0% |
| Deerfield, MI | 1,074 | 39 | 22.0% |
| Kekoskee, WI | 1,074 | 40 | 20.0% |
| Prince, ON | 1,074 | n/a | |
| Ore City, TX | 1,074 | 37 | 26.0% |