| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 42°F | 61°F | 51°F | 9.0" |
| February | 45°F | 63°F | 53°F | 8.3" |
| March | 51°F | 68°F | 59°F | 15.5" |
| April | 59°F | 76°F | 68°F | 24.7" |
| May | 68°F | 83°F | 75°F | 13.6" |
| June | 73°F | 89°F | 81°F | 9.9" |
| July | 75°F | 89°F | 82°F | 15.2" |
| August | 75°F | 91°F | 82°F | 10.1" |
| September | 71°F | 88°F | 79°F | 9.4" |
| October | 60°F | 80°F | 70°F | 11.9" |
| November | 49°F | 70°F | 59°F | 7.3" |
| December | 46°F | 64°F | 54°F | 10.7" |
| Index | Mary Esther | Florida | National |
| Air quality index | 31 | 35 | 50 |
| Pollution index | 3,606,460 | 15,391,344 | 5,066,862 |
| Measurement | Total |
| Days measured | 363 |
| Days with good air quality | 357 |
| Days with moderate air quality | 6 |
| Days w/ poor A.Q. for sensitive groups | |
| Days with unhealthy air quality |
| Pollutant | Total |
| Arsenic | 0.002% |
| Benzene | 0.050% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.010% |
| Mercury | 0.000% |
| City, State | Population | Air Quality Index | National Avg. |
| Shalimar, FL | 792 | 31 | 38% |
| Destin, FL | 13,312 | 31 | 38% |
| Lake Lorraine, FL | 7,233 | 31 | 38% |
| Navarre, FL | 33,473 | 31 | 38% |
| Valparaiso, FL | 5,084 | 31 | 38% |
| Mary Esther, FL | 4,177 | 31 | 38% |
| City, State | Population | Air Quality Index | National Avg. |
| Camp Lake, WI | 4,175 | 39 | 22% |
| Dyersville, IA | 4,180 | 29 | 42% |
| Brookdale, SC | 4,174 | 43 | 14% |
| Westover, WV | 4,180 | 36 | 28% |
| Mead, CO | 4,181 | 45 | 10% |
| Mary Esther, FL | 4,177 | 31 | 38% |
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