| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 56°F | 76°F | 65°F | 1.5" |
| February | 57°F | 77°F | 66°F | 1.5" |
| March | 60°F | 80°F | 70°F | 1.3" |
| April | 65°F | 85°F | 75°F | 2.4" |
| May | 70°F | 88°F | 78°F | 2.4" |
| June | 74°F | 90°F | 81°F | 8.1" |
| July | 76°F | 91°F | 82°F | 7.8" |
| August | 76°F | 91°F | 83°F | 9.3" |
| September | 75°F | 90°F | 81°F | 7.8" |
| October | 70°F | 87°F | 78°F | 4.1" |
| November | 63°F | 82°F | 71°F | 0.9" |
| December | 60°F | 79°F | 68°F | 1.2" |
| Index | Naples | Florida | National |
| Air quality index | 34 | 35 | 42 |
| Pollution index | 30,648,300 | 7,570,785 | 2,726,193 |
| Measurement | Total |
| Days measured | 362 |
| Days with good air quality | 331 |
| Days with moderate air quality | 31 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.040% |
| Benzene | 0.370% |
| Carbon Tetrachloride | 0.080% |
| Lead | 0.150% |
| Mercury | 0.030% |
| City | Population | Air Quality Index | National Avg. |
| Bonita Springs, FL | 57,755 | 34 | 32.0% |
| Lely Resort, FL | 6,559 | 34 | 32.0% |
| Verona Walk, FL | 2,630 | 34 | 32.0% |
| Golden Gate, FL | 30,376 | 34 | 32.0% |
| Marco Island, FL | 17,963 | 34 | 32.0% |
| Naples, FL | 21,750 | 34 | 32.0% |
| City | Population | Air Quality Index | National Avg. |
| Lino Lakes, MN | 21,748 | 46 | 8.0% |
| Del City, OK | 21,762 | 48 | 4.0% |
| Red Deer County, AB | 21,767 | n/a | |
| Pascagoula, MS | 21,732 | 32 | 36.0% |
| Squamish, BC | 21,730 | n/a | |
| Naples, FL | 21,750 | 34 | 32.0% |
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