| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 46°F | 62°F | 53°F | 0.1" |
| February | 48°F | 65°F | 55°F | 0.0" |
| March | 54°F | 70°F | 62°F | 1.5" |
| April | 61°F | 76°F | 69°F | 0.3" |
| May | 67°F | 82°F | 74°F | 1.8" |
| June | 74°F | 87°F | 80°F | 15.7" |
| July | 75°F | 88°F | 81°F | 2.5" |
| August | 75°F | 88°F | 81°F | 4.9" |
| September | 72°F | 85°F | 78°F | 10.1" |
| October | 63°F | 79°F | 71°F | 0.0" |
| November | 53°F | 71°F | 61°F | 0.7" |
| December | 50°F | 66°F | 57°F | 3.0" |
| Index | Sumatra | Florida | National |
| Air quality index | 38 | 35 | 42 |
| Pollution index | 1,006,860 | 7,570,785 | 2,726,193 |
| Measurement | Total |
| Days measured | 357 |
| Days with good air quality | 308 |
| Days with moderate air quality | 49 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.002% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Wewahitchka, FL | 1,762 | 38 | 24.0% |
| Sumatra, FL | 111 | 38 | 24.0% |
| City | Population | Air Quality Index | National Avg. |
| Myrtlewood, AL | 111 | 36 | 28.0% |
| Gum Springs, AR | 111 | 32 | 36.0% |
| Success, AR | 111 | 26 | 48.0% |
| Gazelle, CA | 111 | 36 | 28.0% |
| Orchard, CO | 111 | 45 | 10.0% |
| Sumatra, FL | 111 | 38 | 24.0% |
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