| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 33°F | 54°F | 42°F | 4.8" |
| February | 35°F | 57°F | 45°F | 3.2" |
| March | 44°F | 67°F | 54°F | 4.5" |
| April | 51°F | 76°F | 63°F | 4.9" |
| May | 59°F | 82°F | 70°F | 4.3" |
| June | 67°F | 91°F | 78°F | 4.2" |
| July | 70°F | 92°F | 80°F | 5.3" |
| August | 69°F | 92°F | 79°F | 4.5" |
| September | 62°F | 86°F | 73°F | 3.8" |
| October | 50°F | 76°F | 62°F | 3.9" |
| November | 40°F | 65°F | 52°F | 3.6" |
| December | 36°F | 56°F | 45°F | 5.6" |
| Index | Russellville | Alabama | National |
| Air quality index | 37 | 37 | 42 |
| Pollution index | 1,799,140 | 3,012,339 | 2,726,193 |
| Measurement | Total |
| Days measured | 263 |
| Days with good air quality | 252 |
| Days with moderate air quality | 11 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.001% |
| Benzene | 0.020% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.010% |
| Mercury | 0.001% |
| City | Population | Air Quality Index | National Avg. |
| Spruce Pine, AL | 73 | 37 | 26.0% |
| Leighton, AL | 789 | 37 | 26.0% |
| Tuscumbia, AL | 8,445 | 37 | 26.0% |
| Littleville, AL | 949 | 37 | 26.0% |
| Belgreen, AL | 27 | 37 | 26.0% |
| Russellville, AL | 9,803 | 37 | 26.0% |
| City | Population | Air Quality Index | National Avg. |
| Coweta, OK | 9,803 | 45 | 10.0% |
| Inwood, NY | 9,804 | 51 | 2.0% |
| Orange Lake, NY | 9,800 | 36 | 28.0% |
| Benton Harbor, MI | 9,806 | 39 | 22.0% |
| Alcoa, TN | 9,809 | 46 | 8.0% |
| Russellville, AL | 9,803 | 37 | 26.0% |
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