| 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 | Belle Fontaine | Alabama | National |
| Air quality index | 42 | 37 | 42 |
| Pollution index | 630,582 | 3,012,339 | 2,726,193 |
| 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. |
| Bayou La Batre, AL | 2,332 | 32 | 36.0% |
| Grand Bay, AL | 3,829 | 32 | 36.0% |
| Point Clear, AL | 2,201 | 37 | 26.0% |
| Spanish Fort, AL | 8,991 | 37 | 26.0% |
| Daphne, AL | 26,578 | 37 | 26.0% |
| Belle Fontaine, AL | 498 | 42 | 16.0% |
| City | Population | Air Quality Index | National Avg. |
| Sparkman, AR | 498 | 32 | 36.0% |
| Miranda, CA | 498 | 27 | 46.0% |
| Arnoldsville, GA | 498 | 44 | 12.0% |
| Willernie, MN | 498 | 46 | 8.0% |
| Camden Point, MO | 498 | 43 | 14.0% |
| Belle Fontaine, AL | 498 | 42 | 16.0% |
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