| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 25°F | 44°F | 34°F | 5.2" |
| February | 26°F | 47°F | 35°F | 6.2" |
| March | 35°F | 57°F | 45°F | 5.0" |
| April | 44°F | 68°F | 55°F | 6.9" |
| May | 52°F | 74°F | 62°F | 6.4" |
| June | 60°F | 82°F | 71°F | 11.7" |
| July | 64°F | 84°F | 73°F | 7.3" |
| August | 63°F | 83°F | 72°F | 6.6" |
| September | 56°F | 77°F | 65°F | 10.4" |
| October | 45°F | 67°F | 55°F | 12.8" |
| November | 34°F | 57°F | 44°F | 5.4" |
| December | 30°F | 49°F | 38°F | 6.2" |
| Index | Christiansburg | Virginia | National |
| Air quality index | 41 | 58 | 42 |
| Pollution index | 243,902 | 1,561,881 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 306 |
| Days with moderate air quality | 55 |
| Days w/ poor A.Q. for sensitive groups | 4 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.020% |
| Benzene | 0.003% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.020% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Belspring, VA | 186 | 41 | 18.0% |
| New River, VA | 370 | 41 | 18.0% |
| Prices Fork, VA | 840 | 41 | 18.0% |
| Blacksburg, VA | 44,395 | 41 | 18.0% |
| Elliston, VA | 1,040 | 41 | 18.0% |
| Christiansburg, VA | 22,482 | 41 | 18.0% |
| City | Population | Air Quality Index | National Avg. |
| Mandan, ND | 22,482 | 36 | 28.0% |
| Highland, IN | 22,479 | 55 | 10.0% |
| Dolton, IL | 22,487 | 55 | 10.0% |
| Lennox, CA | 22,476 | 72 | 44.0% |
| White Rock, BC | 22,468 | n/a | |
| Christiansburg, VA | 22,482 | 41 | 18.0% |
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