| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 23°F | 46°F | 33°F | 0.4" |
| February | 26°F | 49°F | 36°F | 1.1" |
| March | 37°F | 62°F | 48°F | 2.1" |
| April | 47°F | 71°F | 57°F | 3.5" |
| May | 55°F | 78°F | 66°F | 5.7" |
| June | 66°F | 89°F | 77°F | 5.7" |
| July | 70°F | 93°F | 81°F | 3.6" |
| August | 68°F | 91°F | 78°F | 4.4" |
| September | 59°F | 84°F | 70°F | 3.1" |
| October | 48°F | 72°F | 59°F | 2.7" |
| November | 36°F | 60°F | 47°F | 1.3" |
| December | 25°F | 46°F | 35°F | 1.1" |
| Index | Andover | Kansas | National |
| Air quality index | 40 | 47 | 42 |
| Pollution index | 438,885 | 989,153 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 301 |
| Days with moderate air quality | 64 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Benton, KS | 898 | 40 | 20.0% |
| Towanda, KS | 1,579 | 40 | 20.0% |
| McConnell AFB, KS | 1,898 | 40 | 20.0% |
| Haysville, KS | 11,260 | 40 | 20.0% |
| El Dorado, KS | 12,976 | 40 | 20.0% |
| Andover, KS | 13,609 | 40 | 20.0% |
| City | Population | Air Quality Index | National Avg. |
| Celina, TX | 13,608 | 51 | 2.0% |
| Middlesex, NJ | 13,606 | 41 | 18.0% |
| Marshall, MN | 13,604 | 32 | 36.0% |
| Kailua CDP (Hawaii County), HI | 13,617 | 30 | 40.0% |
| Canton, IL | 13,600 | 41 | 18.0% |
| Andover, KS | 13,609 | 40 | 20.0% |
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