| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 37°F | 55°F | 45°F | 5.4" |
| February | 37°F | 57°F | 46°F | 3.6" |
| March | 46°F | 69°F | 56°F | 3.3" |
| April | 54°F | 76°F | 65°F | 4.4" |
| May | 63°F | 83°F | 72°F | 4.7" |
| June | 70°F | 92°F | 80°F | 2.0" |
| July | 72°F | 92°F | 81°F | 4.3" |
| August | 72°F | 94°F | 82°F | 3.2" |
| September | 66°F | 87°F | 75°F | 8.2" |
| October | 53°F | 77°F | 64°F | 6.2" |
| November | 44°F | 67°F | 54°F | 2.5" |
| December | 38°F | 57°F | 46°F | 6.3" |
| Index | Hollandale | Mississippi | National |
| Air quality index | 43 | 40 | 42 |
| Pollution index | 455,821 | 1,514,109 | 2,726,193 |
| Measurement | Total |
| Days measured | 364 |
| Days with good air quality | 270 |
| Days with moderate air quality | 94 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.030% |
| Carbon Tetrachloride | 0.003% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Anguilla, MS | 608 | 43 | 14.0% |
| Arcola, MS | 296 | 43 | 14.0% |
| Greenville, MS | 29,854 | 43 | 14.0% |
| Hollandale, MS | 1,980 | 43 | 14.0% |
| City | Population | Air Quality Index | National Avg. |
| Tavernier, FL | 1,980 | 41 | 18.0% |
| Shelter Island, NY | 1,980 | 37 | 26.0% |
| River Heights, UT | 1,980 | 44 | 12.0% |
| Ocean Park, WA | 1,980 | 20 | 60.0% |
| Cross Lake 19A, MB | 1,980 | n/a | |
| Hollandale, MS | 1,980 | 43 | 14.0% |
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