| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 42°F | 63°F | 52°F | 4.5" |
| February | 44°F | 65°F | 54°F | 4.6" |
| March | 51°F | 72°F | 61°F | 5.1" |
| April | 59°F | 78°F | 68°F | 5.2" |
| May | 65°F | 84°F | 75°F | 5.3" |
| June | 73°F | 90°F | 81°F | 5.5" |
| July | 74°F | 91°F | 82°F | 6.3" |
| August | 75°F | 91°F | 82°F | 7.3" |
| September | 71°F | 88°F | 79°F | 3.9" |
| October | 60°F | 80°F | 69°F | 4.3" |
| November | 49°F | 71°F | 59°F | 3.3" |
| December | 46°F | 65°F | 54°F | 6.3" |
| Index | Melrose | Mobile | Alabama |
| Air quality index | 42 | 42 | 37 |
| Pollution index | 630,582 | 630,582 | 3,012,339 |
| Measurement | Total |
| Days measured | 364 |
| Days with good air quality | 258 |
| Days with moderate air quality | 106 |
| 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 | 0.002% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Big Point, MS | 620 | 32 | 36.0% |
| Helena, MS | 794 | 32 | 36.0% |
| Grand Bay, AL | 3,829 | 32 | 36.0% |
| Hurley, MS | 1,279 | 32 | 36.0% |
| Semmes, AL | 5,780 | 42 | 16.0% |
| Mobile, AL | 189,994 | 42 | 16.0% |
| City | Population | Air Quality Index | National Avg. |
| Shreveport, LA | 189,890 | 39 | 22.0% |
| Cape Coral, FL | 189,633 | 36 | 28.0% |
| McKinney, TX | 191,197 | 51 | 2.0% |
| Frisco, TX | 188,387 | 51 | 2.0% |
| Tempe, AZ | 191,607 | 74 | 48.0% |
| Mobile, AL | 189,994 | 42 | 16.0% |
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