| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 28°F | 49°F | 38°F | 3.1" |
| February | 28°F | 50°F | 39°F | 2.6" |
| March | 35°F | 57°F | 46°F | 3.3" |
| April | 45°F | 67°F | 55°F | 3.4" |
| May | 54°F | 75°F | 64°F | 3.5" |
| June | 65°F | 84°F | 74°F | 4.7" |
| July | 70°F | 88°F | 78°F | 4.5" |
| August | 68°F | 86°F | 77°F | 5.3" |
| September | 62°F | 81°F | 71°F | 5.5" |
| October | 52°F | 72°F | 61°F | 5.6" |
| November | 40°F | 61°F | 50°F | 2.9" |
| December | 33°F | 54°F | 43°F | 4.4" |
| Index | Hallwood | Virginia | National |
| Air quality index | 36 | 58 | 42 |
| Pollution index | 2,109,850 | 1,561,881 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 303 |
| Days with moderate air quality | 61 |
| Days w/ poor A.Q. for sensitive groups | 1 |
| Days with unhealthy air quality |
| Pollutant | Total |
| Arsenic | 0.003% |
| Benzene | 0.001% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.001% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Chincoteague, VA | 2,885 | 36 | 28.0% |
| Modest Town, VA | 224 | 36 | 28.0% |
| Temperanceville, VA | 165 | 36 | 28.0% |
| Greenbackville, VA | 35 | 36 | 28.0% |
| Wattsville, VA | 622 | 36 | 28.0% |
| Hallwood, VA | 264 | 36 | 28.0% |
| City | Population | Air Quality Index | National Avg. |
| Industry, CA | 264 | 72 | 44.0% |
| Crystal Lake, IA | 264 | 15 | 70.0% |
| Bliss, ID | 264 | 20 | 60.0% |
| Sweetwater, ID | 264 | 29 | 42.0% |
| Fenton, LA | 264 | 45 | 10.0% |
| Hallwood, VA | 264 | 36 | 28.0% |
Here are the best places to live in Virginia
Check out the 10 safest cities in Virginia
These are the largest cities in Virginia
See the best places to live in Hallwood