| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 27°F | 48°F | 37°F | 5.0" |
| February | 31°F | 51°F | 40°F | 3.4" |
| March | 40°F | 63°F | 51°F | 7.8" |
| April | 49°F | 71°F | 59°F | 10.1" |
| May | 56°F | 77°F | 66°F | 8.3" |
| June | 67°F | 87°F | 76°F | 7.6" |
| July | 70°F | 90°F | 79°F | 9.0" |
| August | 69°F | 89°F | 78°F | 7.9" |
| September | 61°F | 81°F | 70°F | 9.4" |
| October | 49°F | 71°F | 59°F | 9.0" |
| November | 40°F | 61°F | 50°F | 7.4" |
| December | 31°F | 50°F | 39°F | 8.7" |
| Index | Avoca | Arkansas | National |
| Air quality index | 44 | 38 | 42 |
| Pollution index | 2,124,190 | 1,487,822 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 267 |
| Days with moderate air quality | 98 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.020% |
| Benzene | 0.030% |
| Carbon Tetrachloride | 0.004% |
| Lead | 0.010% |
| Mercury | 0.200% |
| City | Population | Air Quality Index | National Avg. |
| Centerton, AR | 15,345 | 44 | 12.0% |
| Lost Bridge Village, AR | 244 | 44 | 12.0% |
| Bethel Heights, AR | 2,490 | 44 | 12.0% |
| Springdale, AR | 80,433 | 44 | 12.0% |
| Garfield, AR | 517 | 44 | 12.0% |
| Avoca, AR | 1,936 | 44 | 12.0% |
| City | Population | Air Quality Index | National Avg. |
| Edmonton, KY | 1,936 | 43 | 14.0% |
| Langdon, ND | 1,936 | 33 | 34.0% |
| LaCoste, TX | 1,936 | 49 | 2.0% |
| Division No. 7, Subd. M, NL | 1,936 | n/a | |
| Salem city, AR | 1,935 | 45 | 10.0% |
| Avoca, AR | 1,936 | 44 | 12.0% |
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