| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 44°F | 63°F | 53°F | 4.1" |
| February | 46°F | 65°F | 55°F | 5.4" |
| March | 52°F | 71°F | 61°F | 3.8" |
| April | 59°F | 76°F | 68°F | 4.5" |
| May | 66°F | 83°F | 75°F | 3.2" |
| June | 73°F | 89°F | 81°F | 7.5" |
| July | 75°F | 90°F | 82°F | 6.0" |
| August | 75°F | 89°F | 82°F | 7.0" |
| September | 71°F | 87°F | 78°F | 5.3" |
| October | 60°F | 80°F | 70°F | 5.3" |
| November | 50°F | 71°F | 60°F | 4.0" |
| December | 47°F | 66°F | 56°F | 4.7" |
| Index | Myrtle Grove | Florida | National |
| Air quality index | 41 | 35 | 42 |
| Pollution index | 4,186,460 | 7,570,785 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 279 |
| Days with moderate air quality | 85 |
| Days w/ poor A.Q. for sensitive groups | 1 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.060% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.050% |
| Mercury | 0.001% |
| City | Population | Air Quality Index | National Avg. |
| Bellview, FL | 22,042 | 41 | 18.0% |
| Lillian, AL | 2,204 | 41 | 18.0% |
| Floridatown, FL | 324 | 41 | 18.0% |
| Pace, FL | 22,760 | 41 | 18.0% |
| Gulf Breeze, FL | 6,934 | 41 | 18.0% |
| Myrtle Grove, FL | 17,531 | 41 | 18.0% |
| City | Population | Air Quality Index | National Avg. |
| Vero Beach, FL | 17,531 | 36 | 28.0% |
| Clemson, SC | 17,526 | 41 | 18.0% |
| Massapequa Park, NY | 17,537 | 51 | 2.0% |
| Camano, WA | 17,523 | 24 | 52.0% |
| Huntington, IN | 17,520 | 31 | 38.0% |
| Myrtle Grove, FL | 17,531 | 41 | 18.0% |