| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 33°F | 52°F | 42°F | 7.3" |
| February | 32°F | 54°F | 43°F | 0.6" |
| March | 40°F | 63°F | 50°F | 7.4" |
| April | 49°F | 72°F | 60°F | 5.0" |
| May | 58°F | 79°F | 68°F | 6.1" |
| June | 66°F | 87°F | 76°F | 7.3" |
| July | 70°F | 90°F | 79°F | 5.6" |
| August | 69°F | 88°F | 77°F | 5.5" |
| September | 63°F | 82°F | 72°F | 17.1" |
| October | 52°F | 74°F | 62°F | 3.5" |
| November | 41°F | 64°F | 51°F | 3.4" |
| December | 36°F | 57°F | 46°F | 3.7" |
| Index | Chesapeake | Virginia | National |
| Air quality index | 40 | 58 | 42 |
| Pollution index | 6,779,520 | 1,561,881 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 317 |
| Days with moderate air quality | 48 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.530% |
| Benzene | 0.050% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.160% |
| Mercury | 0.080% |
| City | Population | Air Quality Index | National Avg. |
| Portsmouth, VA | 94,961 | 40 | 20.0% |
| Norfolk, VA | 244,300 | 40 | 20.0% |
| Chesapeake, VA | 242,647 | 40 | 20.0% |
| City | Population | Air Quality Index | National Avg. |
| Regina, SK | 241,465 | n/a | |
| Norfolk, VA | 244,300 | 40 | 20.0% |
| Irving, TX | 240,475 | 51 | 2.0% |
| Winston-Salem, NC | 245,787 | 45 | 10.0% |
| Garland, TX | 238,622 | 51 | 2.0% |
| Chesapeake, VA | 242,647 | 40 | 20.0% |
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