| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 55°F | 76°F | 64°F | 3.0" |
| February | 56°F | 78°F | 66°F | 1.9" |
| March | 59°F | 81°F | 69°F | 2.3" |
| April | 64°F | 86°F | 75°F | 2.2" |
| May | 69°F | 90°F | 79°F | 3.2" |
| June | 74°F | 91°F | 81°F | 9.9" |
| July | 75°F | 92°F | 82°F | 10.4" |
| August | 76°F | 92°F | 82°F | 10.7" |
| September | 74°F | 91°F | 81°F | 9.1" |
| October | 69°F | 87°F | 77°F | 4.0" |
| November | 61°F | 82°F | 70°F | 1.5" |
| December | 59°F | 79°F | 68°F | 1.8" |
| Index | Iona | 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. |
| Bonita Springs, FL | 57,755 | 34 | 32.0% |
| Estero, FL | 33,450 | 34 | 32.0% |
| Gateway, FL | 10,552 | 36 | 28.0% |
| Tice, FL | 5,379 | 36 | 28.0% |
| Fort Myers, FL | 83,505 | 36 | 28.0% |
| Iona, FL | 13,588 | 36 | 28.0% |
| City | Population | Air Quality Index | National Avg. |
| Oatfield, OR | 13,588 | 38 | 24.0% |
| Jasper, AL | 13,584 | 53 | 6.0% |
| Forest City, FL | 13,592 | 39 | 22.0% |
| Jensen Beach, FL | 13,592 | 36 | 28.0% |
| Olean, NY | 13,580 | 9 | 82.0% |
| Iona, FL | 13,588 | 36 | 28.0% |
Here are the best places to live in Florida
These are the 10 cheapest cities in Florida
Check out the 10 safest cities in Florida
Most Dangerous States In The US