| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 19°F | 43°F | 30°F | 0.8" |
| February | 21°F | 46°F | 33°F | 1.6" |
| March | 34°F | 60°F | 46°F | 2.8" |
| April | 44°F | 69°F | 56°F | 4.4" |
| May | 53°F | 77°F | 65°F | 5.4" |
| June | 64°F | 87°F | 75°F | 5.6" |
| July | 68°F | 90°F | 79°F | 4.9" |
| August | 66°F | 89°F | 77°F | 5.7" |
| September | 57°F | 82°F | 69°F | 4.8" |
| October | 45°F | 71°F | 57°F | 3.9" |
| November | 34°F | 59°F | 46°F | 2.0" |
| December | 22°F | 44°F | 32°F | 1.8" |
| Index | Basehor | Kansas | National |
| Air quality index | 47 | 47 | 42 |
| Pollution index | 6,786,570 | 989,153 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 210 |
| Days with moderate air quality | 154 |
| Days w/ poor A.Q. for sensitive groups | 1 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.090% |
| Benzene | 0.050% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.080% |
| Mercury | 0.060% |
| City | Population | Air Quality Index | National Avg. |
| McLouth, KS | 1,106 | 41 | 18.0% |
| Easton, KS | 247 | 43 | 14.0% |
| Bonner Springs, KS | 7,846 | 47 | 6.0% |
| Merriam, KS | 11,191 | 47 | 6.0% |
| Eudora, KS | 6,551 | 47 | 6.0% |
| Basehor, KS | 6,225 | 47 | 6.0% |
| City | Population | Air Quality Index | National Avg. |
| Hurricane, WV | 6,225 | 40 | 20.0% |
| Woodland, WA | 6,223 | 18 | 64.0% |
| Okanagan-Similkameen D, BC | 6,227 | n/a | |
| Litchfield Park, AZ | 6,228 | 74 | 48.0% |
| Lanett, AL | 6,220 | 42 | 16.0% |
| Basehor, KS | 6,225 | 47 | 6.0% |
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