| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 39°F | 62°F | 49°F | 3.7" |
| February | 43°F | 67°F | 54°F | 2.0" |
| March | 51°F | 74°F | 62°F | 4.5" |
| April | 58°F | 81°F | 69°F | 3.5" |
| May | 65°F | 86°F | 75°F | 6.4" |
| June | 72°F | 93°F | 82°F | 3.1" |
| July | 74°F | 96°F | 84°F | 3.6" |
| August | 74°F | 97°F | 85°F | 2.4" |
| September | 69°F | 90°F | 79°F | 3.9" |
| October | 59°F | 82°F | 70°F | 4.8" |
| November | 49°F | 71°F | 59°F | 2.1" |
| December | 41°F | 62°F | 51°F | 1.6" |
| Index | Kempner | Texas | National |
| Air quality index | 42 | 52 | 42 |
| Pollution index | 798,696 | 2,009,300 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 284 |
| Days with moderate air quality | 79 |
| Days w/ poor A.Q. for sensitive groups | 2 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.002% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Fort Hood, TX | 23,302 | 42 | 16.0% |
| Killeen, TX | 148,573 | 42 | 16.0% |
| Lampasas, TX | 7,869 | 42 | 16.0% |
| Copperas Cove, TX | 32,960 | 42 | 16.0% |
| Kempner, TX | 1,057 | 42 | 16.0% |
| City | Population | Air Quality Index | National Avg. |
| Log Lane Village, CO | 1,057 | 45 | 10.0% |
| Panaca, NV | 1,057 | 44 | 12.0% |
| Malin, OR | 1,057 | 29 | 42.0% |
| White Haven, PA | 1,057 | 38 | 24.0% |
| Montrose, BC | 1,057 | n/a | |
| Kempner, TX | 1,057 | 42 | 16.0% |
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