| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 53°F | 72°F | 63°F | 3.2" |
| February | 53°F | 73°F | 65°F | 15.4" |
| March | 58°F | 78°F | 69°F | 2.3" |
| April | 64°F | 83°F | 75°F | 3.3" |
| May | 68°F | 87°F | 79°F | 8.0" |
| June | 73°F | 90°F | 82°F | 16.6" |
| July | 75°F | 90°F | 83°F | 10.7" |
| August | 75°F | 91°F | 83°F | 8.3" |
| September | 74°F | 89°F | 82°F | 7.8" |
| October | 68°F | 84°F | 77°F | 2.7" |
| November | 60°F | 77°F | 69°F | 0.8" |
| December | 57°F | 75°F | 67°F | 3.3" |
| Index | Williamsburg | Florida | National |
| Air quality index | 39 | 35 | 42 |
| Pollution index | 713,198 | 7,570,785 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 296 |
| Days with moderate air quality | 63 |
| Days w/ poor A.Q. for sensitive groups | 6 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.010% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Campbell, FL | 2,313 | 39 | 22.0% |
| Four Corners, FL | 47,768 | 39 | 22.0% |
| Lake Buena Vista, FL | 4 | 39 | 22.0% |
| Tangelo Park, FL | 2,992 | 39 | 22.0% |
| Alafaya, FL | 94,471 | 39 | 22.0% |
| Williamsburg, FL | 7,755 | 39 | 22.0% |
| City | Population | Air Quality Index | National Avg. |
| Escalon, CA | 7,755 | 49 | 2.0% |
| River Rouge, MI | 7,756 | 56 | 12.0% |
| Jasper, TX | 7,756 | 45 | 10.0% |
| Sioux Center, IA | 7,757 | 35 | 30.0% |
| Page, AZ | 7,760 | 44 | 12.0% |
| Williamsburg, FL | 7,755 | 39 | 22.0% |