| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 35°F | 57°F | 45°F | 8.2" |
| February | 39°F | 60°F | 48°F | 6.0" |
| March | 46°F | 69°F | 57°F | 8.6" |
| April | 55°F | 78°F | 65°F | 9.5" |
| May | 61°F | 83°F | 71°F | 7.5" |
| June | 70°F | 91°F | 80°F | 7.6" |
| July | 73°F | 93°F | 82°F | 6.7" |
| August | 72°F | 93°F | 81°F | 7.3" |
| September | 65°F | 89°F | 76°F | 3.5" |
| October | 54°F | 79°F | 65°F | 7.4" |
| November | 44°F | 66°F | 54°F | 6.8" |
| December | 39°F | 58°F | 47°F | 7.8" |
| Index | Hamburg | Arkansas | National |
| Air quality index | 35 | 38 | 42 |
| Pollution index | 519,038 | 1,487,822 | 2,726,193 |
| Measurement | Total |
| Days measured | 241 |
| Days with good air quality | 196 |
| Days with moderate air quality | 45 |
| 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 | 0.000% |
| Lead | 0.001% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Wilmot, AR | 499 | 34 | 32.0% |
| Parkdale, AR | 269 | 34 | 32.0% |
| West Crossett, AR | 1,434 | 35 | 30.0% |
| Crossett, AR | 4,890 | 35 | 30.0% |
| Fountain Hill, AR | 175 | 35 | 30.0% |
| Hamburg, AR | 2,647 | 35 | 30.0% |
| City | Population | Air Quality Index | National Avg. |
| Green Island, NY | 2,647 | 37 | 26.0% |
| Freer, TX | 2,647 | 30 | 40.0% |
| Holyrood, NL | 2,647 | n/a | |
| West Portsmouth, OH | 2,646 | 14 | 72.0% |
| Biggs, CA | 2,648 | 44 | 12.0% |
| Hamburg, AR | 2,647 | 35 | 30.0% |
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