| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 41°F | 60°F | 51°F | 13.7" |
| February | 41°F | 62°F | 52°F | 10.0" |
| March | 49°F | 72°F | 60°F | 9.8" |
| April | 52°F | 76°F | 64°F | 11.7" |
| May | 61°F | 85°F | 74°F | 7.8" |
| June | 70°F | 91°F | 81°F | 6.3" |
| July | 74°F | 91°F | 82°F | 8.6" |
| August | 76°F | 95°F | 85°F | 5.7" |
| September | 70°F | 89°F | 80°F | 12.4" |
| October | 58°F | 79°F | 69°F | 8.2" |
| November | 48°F | 70°F | 58°F | 6.9" |
| December | 41°F | 63°F | 51°F | 5.8" |
| Index | Millbrook | Alabama | National |
| Air quality index | 52 | 37 | 42 |
| Pollution index | 2,072,150 | 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 | 0.004% |
| Benzene | 0.030% |
| Carbon Tetrachloride | 0.004% |
| Lead | 0.020% |
| Mercury | 0.004% |
| City | Population | Air Quality Index | National Avg. |
| Marbury, AL | 2,040 | 52 | 4.0% |
| Coosada, AL | 935 | 52 | 4.0% |
| Montgomery, AL | 199,054 | 52 | 4.0% |
| Pine Level, AL | 3,621 | 52 | 4.0% |
| Deatsville, AL | 1,864 | 52 | 4.0% |
| Millbrook, AL | 16,037 | 52 | 4.0% |
| City | Population | Air Quality Index | National Avg. |
| Tracadie, NB | 16,034 | n/a | |
| Boulder City, NV | 16,048 | 54 | 8.0% |
| Ripon, CA | 16,049 | 49 | 2.0% |
| Laguna Woods, CA | 16,056 | 89 | 78.0% |
| Fort Mohave, AZ | 16,016 | 13 | 74.0% |
| Millbrook, AL | 16,037 | 52 | 4.0% |
Here are the best places to live in Alabama
Check out the 10 safest cities in Alabama
Most Dangerous States In The US
Check out the 10 most dangerous cities in Alabama