| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 60°F | 78°F | 69°F | 1.8" |
| February | 61°F | 80°F | 70°F | 2.3" |
| March | 64°F | 82°F | 72°F | 2.6" |
| April | 69°F | 85°F | 77°F | 3.9" |
| May | 73°F | 88°F | 80°F | 6.2" |
| June | 76°F | 90°F | 82°F | 10.8" |
| July | 77°F | 91°F | 84°F | 9.0" |
| August | 77°F | 92°F | 84°F | 10.0" |
| September | 76°F | 90°F | 83°F | 10.1" |
| October | 73°F | 87°F | 80°F | 7.0" |
| November | 67°F | 82°F | 74°F | 2.9" |
| December | 64°F | 81°F | 72°F | 2.7" |
| Index | Westchester | Florida | National |
| Air quality index | 41 | 35 | 42 |
| Pollution index | 43,296,200 | 7,570,785 | 2,726,193 |
| Measurement | Total |
| Days measured | 363 |
| Days with good air quality | 284 |
| Days with moderate air quality | 77 |
| Days w/ poor A.Q. for sensitive groups | 2 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.060% |
| Benzene | 0.510% |
| Carbon Tetrachloride | 0.150% |
| Lead | 0.330% |
| Mercury | 0.090% |
| City | Population | Air Quality Index | National Avg. |
| Golden Beach, FL | 586 | 41 | 18.0% |
| Brownsville, FL | 17,475 | 41 | 18.0% |
| Fountainebleau, FL | 59,174 | 41 | 18.0% |
| Medley, FL | 1,053 | 41 | 18.0% |
| Pinecrest, FL | 19,183 | 41 | 18.0% |
| Westchester, FL | 54,470 | 41 | 18.0% |
| City | Population | Air Quality Index | National Avg. |
| Anderson, IN | 54,476 | 42 | 16.0% |
| Albany, OR | 54,442 | 28 | 44.0% |
| Burlington, NC | 54,534 | 31 | 38.0% |
| Yucaipa, CA | 54,358 | 89 | 78.0% |
| Decatur, AL | 54,344 | 41 | 18.0% |
| Westchester, FL | 54,470 | 41 | 18.0% |
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