| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 41°F | 66°F | 52°F | 3.5" |
| February | 42°F | 69°F | 54°F | 4.2" |
| March | 48°F | 75°F | 61°F | 3.6" |
| April | 55°F | 82°F | 68°F | 4.8" |
| May | 61°F | 88°F | 74°F | 2.3" |
| June | 70°F | 93°F | 80°F | 6.3" |
| July | 72°F | 94°F | 81°F | 5.8" |
| August | 73°F | 93°F | 81°F | 4.8" |
| September | 68°F | 90°F | 77°F | 3.9" |
| October | 57°F | 82°F | 68°F | 2.3" |
| November | 47°F | 74°F | 59°F | 2.3" |
| December | 45°F | 69°F | 55°F | 3.1" |
| Index | Morven | Georgia | National |
| Air quality index | 35 | 41 | 42 |
| Pollution index | 1,445,320 | 1,874,972 | 2,726,193 |
| Measurement | Total |
| Days measured | 309 |
| Days with good air quality | 255 |
| Days with moderate air quality | 54 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.020% |
| Benzene | 0.020% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.010% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Berlin, GA | 749 | 35 | 30.0% |
| Quitman, GA | 3,720 | 35 | 30.0% |
| Cecil, GA | 288 | 35 | 30.0% |
| Remerton, GA | 1,182 | 35 | 30.0% |
| Adel, GA | 5,297 | 35 | 30.0% |
| Morven, GA | 882 | 35 | 30.0% |
| City | Population | Air Quality Index | National Avg. |
| Arbon Valley, ID | 882 | 27 | 46.0% |
| Parks, LA | 882 | 41 | 18.0% |
| Harwick, PA | 882 | 56 | 12.0% |
| Carolina, RI | 882 | 37 | 26.0% |
| Frost, TX | 882 | 41 | 18.0% |
| Morven, GA | 882 | 35 | 30.0% |
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