| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 53°F | 76°F | 64°F | 2.3" |
| February | 51°F | 76°F | 63°F | 4.7" |
| March | 56°F | 81°F | 67°F | 5.9" |
| April | 57°F | 83°F | 71°F | 5.2" |
| May | 65°F | 88°F | 76°F | 4.2" |
| June | 72°F | 90°F | 80°F | 12.0" |
| July | 75°F | 93°F | 82°F | 9.3" |
| August | 75°F | 94°F | 83°F | 9.6" |
| September | 73°F | 91°F | 80°F | 8.2" |
| October | 72°F | 88°F | 78°F | 6.6" |
| November | 58°F | 82°F | 69°F | 2.5" |
| December | 54°F | 77°F | 65°F | 1.1" |
| Index | Harbour Heights | 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. |
| North Port, FL | 68,779 | 36 | 28.0% |
| Port Charlotte, FL | 64,335 | 36 | 28.0% |
| Charlotte Harbor, FL | 4,619 | 36 | 28.0% |
| Punta Gorda, FL | 20,044 | 36 | 28.0% |
| Charlotte Park, FL | 1,893 | 36 | 28.0% |
| Harbour Heights, FL | 3,850 | 36 | 28.0% |
| City | Population | Air Quality Index | National Avg. |
| Dumas, AR | 3,850 | 43 | 14.0% |
| Morrison, IL | 3,850 | 42 | 16.0% |
| Owego, NY | 3,850 | 36 | 28.0% |
| Penhold, AB | 3,849 | n/a | |
| Lake Park, NC | 3,851 | 49 | 2.0% |
| Harbour Heights, FL | 3,850 | 36 | 28.0% |
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