| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 31°F | 50°F | 40°F | 5.0" |
| February | 31°F | 53°F | 41°F | 4.2" |
| March | 39°F | 62°F | 50°F | 4.8" |
| April | 48°F | 73°F | 60°F | 7.0" |
| May | 57°F | 79°F | 68°F | 6.3" |
| June | 66°F | 87°F | 76°F | 9.1" |
| July | 71°F | 90°F | 80°F | 7.8" |
| August | 69°F | 88°F | 78°F | 6.0" |
| September | 63°F | 82°F | 72°F | 8.9" |
| October | 51°F | 73°F | 61°F | 8.0" |
| November | 39°F | 62°F | 50°F | 4.0" |
| December | 34°F | 55°F | 44°F | 5.0" |
| Index | King and Queen Court House | Virginia | National |
| Air quality index | 44 | 58 | 42 |
| Pollution index | 6,505,420 | 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 | 0.150% |
| Benzene | 0.060% |
| Carbon Tetrachloride | 0.020% |
| Lead | 0.050% |
| Mercury | 0.004% |
| City | Population | Air Quality Index | National Avg. |
| New Kent, VA | 819 | 44 | 12.0% |
| West Point, VA | 3,364 | 44 | 12.0% |
| King William, VA | 321 | 44 | 12.0% |
| Central Garage, VA | 1,238 | 44 | 12.0% |
| King and Queen Court House, VA | 93 | 44 | 12.0% |
| City | Population | Air Quality Index | National Avg. |
| Lowell Point, AK | 93 | 31 | 38.0% |
| South Lead Hill, AR | 93 | 36 | 28.0% |
| Utting, AZ | 93 | 13 | 74.0% |
| Peoria, CO | 93 | 58 | 16.0% |
| Rockingham, GA | 93 | 26 | 48.0% |
| King and Queen Court House, VA | 93 | 44 | 12.0% |