| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 52°F | 73°F | 62°F | 3.2" |
| February | 53°F | 75°F | 64°F | 3.2" |
| March | 58°F | 78°F | 68°F | 3.4" |
| April | 63°F | 82°F | 73°F | 3.4" |
| May | 68°F | 86°F | 77°F | 4.6" |
| June | 73°F | 89°F | 80°F | 7.8" |
| July | 75°F | 90°F | 81°F | 7.6" |
| August | 75°F | 91°F | 82°F | 7.2" |
| September | 74°F | 88°F | 81°F | 8.3" |
| October | 69°F | 84°F | 76°F | 6.0" |
| November | 61°F | 79°F | 69°F | 2.8" |
| December | 57°F | 76°F | 66°F | 2.7" |
| Index | Grant-Valkaria | Florida | National |
| Air quality index | 36 | 35 | 42 |
| Pollution index | 3,269,270 | 7,570,785 | 2,726,193 |
| Measurement | Total |
| Days measured | 351 |
| Days with good air quality | 336 |
| Days with moderate air quality | 15 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.002% |
| Benzene | 0.050% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Sebastian, FL | 25,613 | 36 | 28.0% |
| Fellsmere, FL | 5,692 | 36 | 28.0% |
| Melbourne, FL | 82,281 | 36 | 28.0% |
| Palm Bay, FL | 113,751 | 36 | 28.0% |
| Wabasso, FL | 690 | 36 | 28.0% |
| Grant-Valkaria, FL | 4,240 | 36 | 28.0% |
| City | Population | Air Quality Index | National Avg. |
| Forsyth, GA | 4,239 | 38 | 24.0% |
| Cold Spring, MN | 4,238 | 32 | 36.0% |
| Cherry Grove, OH | 4,237 | 54 | 8.0% |
| Enon, VA | 4,237 | 44 | 12.0% |
| Hastings Highlands, ON | 4,237 | n/a | |
| Grant-Valkaria, FL | 4,240 | 36 | 28.0% |
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