| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 41°F | 66°F | 52°F | 3.5" |
| February | 42°F | 69°F | 54°F | 4.2" |
| March | 48°F | 75°F | 61°F | 3.6" |
| April | 55°F | 82°F | 68°F | 4.8" |
| May | 61°F | 88°F | 74°F | 2.3" |
| June | 70°F | 93°F | 80°F | 6.3" |
| July | 72°F | 94°F | 81°F | 5.8" |
| August | 73°F | 93°F | 81°F | 4.8" |
| September | 68°F | 90°F | 77°F | 3.9" |
| October | 57°F | 82°F | 68°F | 2.3" |
| November | 47°F | 74°F | 59°F | 2.3" |
| December | 45°F | 69°F | 55°F | 3.1" |
| Index | Lee | Florida | National |
| Air quality index | 35 | 35 | 42 |
| Pollution index | 2,420,530 | 7,570,785 | 2,726,193 |
| Measurement | Total |
| Days measured | 309 |
| Days with good air quality | 255 |
| Days with moderate air quality | 54 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.020% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.070% |
| Mercury | 0.004% |
| City | Population | Air Quality Index | National Avg. |
| Madison, FL | 2,790 | 35 | 30.0% |
| Jennings, FL | 781 | 35 | 30.0% |
| Day, FL | 147 | 38 | 24.0% |
| Lee, FL | 573 | 35 | 30.0% |
| City | Population | Air Quality Index | National Avg. |
| Buena Vista, CA | 573 | 45 | 10.0% |
| Bell, FL | 573 | 35 | 30.0% |
| Mettawa, IL | 573 | 55 | 10.0% |
| Wilson, LA | 573 | 45 | 10.0% |
| Pasadena Park, MO | 573 | 54 | 8.0% |
| Lee, FL | 573 | 35 | 30.0% |
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