| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 52°F | 73°F | 61°F | 2.6" |
| February | 53°F | 74°F | 63°F | 1.5" |
| March | 57°F | 78°F | 67°F | 2.2" |
| April | 63°F | 83°F | 73°F | 2.0" |
| May | 68°F | 87°F | 78°F | 3.0" |
| June | 74°F | 90°F | 81°F | 6.7" |
| July | 75°F | 91°F | 82°F | 7.1" |
| August | 76°F | 91°F | 83°F | 8.6" |
| September | 74°F | 90°F | 81°F | 7.6" |
| October | 68°F | 86°F | 76°F | 2.5" |
| November | 59°F | 80°F | 68°F | 1.2" |
| December | 56°F | 77°F | 66°F | 1.2" |
| Index | Palmetto | Florida | National |
| Air quality index | 38 | 35 | 42 |
| Pollution index | 18,829,900 | 7,570,785 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 308 |
| Days with moderate air quality | 56 |
| Days w/ poor A.Q. for sensitive groups | 1 |
| Days with unhealthy air quality |
| Pollutant | Total |
| Arsenic | 0.050% |
| Benzene | 0.220% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.130% |
| Mercury | 0.050% |
| City | Population | Air Quality Index | National Avg. |
| Bayshore Gardens, FL | 20,380 | 38 | 24.0% |
| Desoto Lakes, FL | 1,907 | 38 | 24.0% |
| Longboat Key, FL | 7,299 | 38 | 24.0% |
| Sarasota, FL | 57,787 | 38 | 24.0% |
| Whitfield, FL | 4,398 | 38 | 24.0% |
| Palmetto, FL | 13,678 | 38 | 24.0% |
| City | Population | Air Quality Index | National Avg. |
| Dallas, GA | 13,680 | 52 | 4.0% |
| Holly Springs, GA | 13,682 | 52 | 4.0% |
| River Ridge, LA | 13,690 | 45 | 10.0% |
| Bensville, MD | 13,658 | 47 | 6.0% |
| Monticello, MN | 13,700 | 32 | 36.0% |
| Palmetto, FL | 13,678 | 38 | 24.0% |
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