| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 54°F | 76°F | 64°F | 2.0" |
| February | 55°F | 78°F | 65°F | 1.1" |
| March | 58°F | 81°F | 69°F | 1.8" |
| April | 64°F | 86°F | 74°F | 1.9" |
| May | 68°F | 89°F | 78°F | 2.6" |
| June | 73°F | 91°F | 80°F | 9.2" |
| July | 74°F | 92°F | 81°F | 9.2" |
| August | 75°F | 92°F | 82°F | 8.9" |
| September | 74°F | 90°F | 80°F | 8.4" |
| October | 69°F | 87°F | 76°F | 2.4" |
| November | 60°F | 81°F | 70°F | 0.9" |
| December | 58°F | 79°F | 67°F | 1.2" |
| Index | Gateway | Florida | National |
| Air quality index | 36 | 35 | 42 |
| Pollution index | 58,201,700 | 7,570,785 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 328 |
| Days with moderate air quality | 36 |
| Days w/ poor A.Q. for sensitive groups | 1 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.001% |
| Benzene | 1.330% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.010% |
| Mercury | 0.001% |
| City | Population | Air Quality Index | National Avg. |
| Estero, FL | 33,450 | 34 | 32.0% |
| Olga, FL | 2,773 | 36 | 28.0% |
| Page Park, FL | 621 | 36 | 28.0% |
| Cape Coral, FL | 189,633 | 36 | 28.0% |
| Harlem Heights, FL | 1,362 | 36 | 28.0% |
| Gateway, FL | 10,552 | 36 | 28.0% |
| City | Population | Air Quality Index | National Avg. |
| Ogdensburg, NY | 10,559 | 35 | 30.0% |
| Vermilion, OH | 10,559 | 50 | = 100 |
| Worth, IL | 10,544 | 55 | 10.0% |
| Jacinto City, TX | 10,544 | 52 | 4.0% |
| Atchison, KS | 10,561 | 43 | 14.0% |
| Gateway, FL | 10,552 | 36 | 28.0% |
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