| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 26°F | 48°F | 36°F | 3.5" |
| February | 27°F | 50°F | 38°F | 2.4" |
| March | 36°F | 61°F | 47°F | 3.8" |
| April | 45°F | 71°F | 57°F | 4.0" |
| May | 52°F | 77°F | 64°F | 4.8" |
| June | 61°F | 85°F | 73°F | 4.0" |
| July | 65°F | 88°F | 76°F | 3.9" |
| August | 64°F | 87°F | 75°F | 3.3" |
| September | 58°F | 80°F | 68°F | 3.5" |
| October | 46°F | 70°F | 57°F | 3.9" |
| November | 35°F | 60°F | 47°F | 3.3" |
| December | 30°F | 51°F | 40°F | 4.0" |
| Index | Altavista | Virginia | National |
| Air quality index | 26 | 58 | 42 |
| Pollution index | 301,204 | 1,561,881 | 2,726,193 |
| Measurement | Total |
| Days measured | 108 |
| Days with good air quality | 107 |
| Days with moderate air quality | 1 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.020% |
| Benzene | 0.002% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.004% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Bedford, VA | 6,599 | 26 | 48.0% |
| Motley, VA | 656 | 26 | 48.0% |
| Gretna, VA | 1,434 | 26 | 48.0% |
| Rustburg, VA | 1,585 | 26 | 48.0% |
| Hurt, VA | 1,457 | 26 | 48.0% |
| Altavista, VA | 3,439 | 26 | 48.0% |
| City | Population | Air Quality Index | National Avg. |
| Locust, NC | 3,439 | 49 | 2.0% |
| Lockland, OH | 3,439 | 54 | 8.0% |
| Mount Gilead, OH | 3,439 | 41 | 18.0% |
| Lake Lakengren, OH | 3,437 | 6 | 88.0% |
| Saint-Jean-Port-Joli, QC | 3,441 | n/a | |
| Altavista, VA | 3,439 | 26 | 48.0% |
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