| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 30°F | 48°F | 38°F | 3.6" |
| February | 30°F | 50°F | 40°F | 2.6" |
| March | 38°F | 60°F | 48°F | 3.5" |
| April | 48°F | 71°F | 59°F | 4.1" |
| May | 57°F | 77°F | 66°F | 4.7" |
| June | 65°F | 86°F | 75°F | 5.0" |
| July | 69°F | 89°F | 78°F | 3.9" |
| August | 67°F | 87°F | 76°F | 4.2" |
| September | 61°F | 80°F | 70°F | 4.1" |
| October | 50°F | 71°F | 59°F | 4.8" |
| November | 39°F | 60°F | 48°F | 3.9" |
| December | 33°F | 52°F | 42°F | 4.3" |
| Index | Chamberlayne | Virginia | National |
| Air quality index | 44 | 58 | 42 |
| Pollution index | 5,336,070 | 1,561,881 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 272 |
| Days with moderate air quality | 93 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.200% |
| Benzene | 0.050% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.050% |
| Mercury | 0.010% |
| City | Population | Air Quality Index | National Avg. |
| Mechanicsville, VA | 37,141 | 44 | 12.0% |
| Short Pump, VA | 27,385 | 44 | 12.0% |
| Ashland, VA | 7,819 | 44 | 12.0% |
| Glen Allen, VA | 14,842 | 44 | 12.0% |
| Manchester, VA | 11,814 | 44 | 12.0% |
| Chamberlayne, VA | 5,116 | 44 | 12.0% |
| City | Population | Air Quality Index | National Avg. |
| Salisbury, MA | 5,116 | 37 | 26.0% |
| Lakehills, TX | 5,116 | 49 | 2.0% |
| Grandwood Park, IL | 5,114 | 39 | 22.0% |
| Hugo, OK | 5,114 | 325 | 550.0% |
| Kenneth City, FL | 5,119 | 43 | 14.0% |
| Chamberlayne, VA | 5,116 | 44 | 12.0% |
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