| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 28°F | 51°F | 38°F | 3.0" |
| February | 32°F | 55°F | 42°F | 3.4" |
| March | 41°F | 65°F | 52°F | 6.1" |
| April | 50°F | 75°F | 62°F | 6.1" |
| May | 58°F | 82°F | 69°F | 8.3" |
| June | 68°F | 91°F | 79°F | 6.7" |
| July | 70°F | 93°F | 81°F | 4.2" |
| August | 69°F | 92°F | 79°F | 4.6" |
| September | 62°F | 86°F | 73°F | 5.1" |
| October | 49°F | 76°F | 61°F | 4.2" |
| November | 39°F | 64°F | 50°F | 4.5" |
| December | 32°F | 53°F | 42°F | 7.1" |
| Index | Quitman | Arkansas | National |
| Air quality index | 45 | 38 | 42 |
| Pollution index | 2,031,030 | 1,487,822 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 235 |
| Days with moderate air quality | 130 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.002% |
| Benzene | 0.020% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.010% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Clinton, AR | 2,538 | 36 | 28.0% |
| Enola, AR | 389 | 45 | 10.0% |
| Mount Vernon, AR | 178 | 45 | 10.0% |
| Higden, AR | 83 | 45 | 10.0% |
| Greenbrier, AR | 5,592 | 45 | 10.0% |
| Quitman, AR | 853 | 45 | 10.0% |
| City | Population | Air Quality Index | National Avg. |
| Oakman, AL | 853 | 35 | 30.0% |
| Matlacha, FL | 853 | 36 | 28.0% |
| Lot 63, PE | 853 | n/a | |
| Saint-Henri-de-Taillon, QC | 853 | n/a | |
| Womens Bay, AK | 852 | 31 | 38.0% |
| Quitman, AR | 853 | 45 | 10.0% |
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