| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 44°F | 63°F | 53°F | 2.9" |
| February | 45°F | 65°F | 54°F | 3.1" |
| March | 52°F | 71°F | 60°F | 2.5" |
| April | 59°F | 77°F | 68°F | 3.3" |
| May | 67°F | 83°F | 74°F | 3.0" |
| June | 73°F | 88°F | 80°F | 5.3" |
| July | 76°F | 90°F | 82°F | 4.3" |
| August | 76°F | 90°F | 82°F | 6.4" |
| September | 72°F | 86°F | 79°F | 5.8" |
| October | 63°F | 79°F | 70°F | 3.4" |
| November | 52°F | 71°F | 61°F | 1.4" |
| December | 48°F | 67°F | 56°F | 2.6" |
| Index | Brunswick | Georgia | National |
| Air quality index | 36 | 41 | 42 |
| Pollution index | 380,728 | 1,874,972 | 2,726,193 |
| Measurement | Total |
| Days measured | 279 |
| Days with good air quality | 254 |
| Days with moderate air quality | 25 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.001% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.001% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| St. Simons, GA | 15,291 | 36 | 28.0% |
| Country Club Estates, GA | 9,408 | 36 | 28.0% |
| Woodbine, GA | 1,322 | 36 | 28.0% |
| Darien, GA | 1,956 | 36 | 28.0% |
| Dock Junction, GA | 7,500 | 36 | 28.0% |
| Brunswick, GA | 16,231 | 36 | 28.0% |
| City | Population | Air Quality Index | National Avg. |
| Auburndale, FL | 16,230 | 36 | 28.0% |
| Port Washington, NY | 16,232 | 51 | 2.0% |
| Beckley, WV | 16,240 | 295 | 490.0% |
| Fairview Park, OH | 16,219 | 50 | = 100 |
| Fort Carson, CO | 16,243 | 45 | 10.0% |
| Brunswick, GA | 16,231 | 36 | 28.0% |
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