| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 37°F | 61°F | 48°F | 5.3" |
| February | 39°F | 64°F | 50°F | 4.9" |
| March | 46°F | 72°F | 58°F | 4.8" |
| April | 52°F | 79°F | 65°F | 5.1" |
| May | 59°F | 85°F | 72°F | 3.9" |
| June | 68°F | 91°F | 78°F | 4.3" |
| July | 70°F | 92°F | 80°F | 5.6" |
| August | 71°F | 92°F | 80°F | 5.3" |
| September | 65°F | 88°F | 75°F | 3.3" |
| October | 53°F | 79°F | 65°F | 2.7" |
| November | 43°F | 70°F | 55°F | 3.6" |
| December | 40°F | 63°F | 51°F | 6.3" |
| Index | Glenwood | Alabama | National |
| Air quality index | 52 | 37 | 42 |
| Pollution index | 1,560,990 | 3,012,339 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 171 |
| Days with moderate air quality | 193 |
| Days w/ poor A.Q. for sensitive groups | 1 |
| 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. |
| Brantley, AL | 1,042 | 52 | 4.0% |
| Rutledge, AL | 411 | 52 | 4.0% |
| Dozier, AL | 464 | 52 | 4.0% |
| Troy, AL | 18,995 | 52 | 4.0% |
| Goshen, AL | 222 | 52 | 4.0% |
| Glenwood, AL | 254 | 52 | 4.0% |
| City | Population | Air Quality Index | National Avg. |
| Fairhaven, CA | 254 | 27 | 46.0% |
| Pine Village, IN | 254 | 42 | 16.0% |
| Oakland, KY | 254 | 43 | 14.0% |
| Long Beach, MN | 254 | 32 | 36.0% |
| St. Hilaire, MN | 254 | 33 | 34.0% |
| Glenwood, AL | 254 | 52 | 4.0% |
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