| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 23°F | 39°F | 29°F | 4.4" |
| February | 27°F | 45°F | 34°F | 4.9" |
| March | 39°F | 61°F | 48°F | 5.2" |
| April | 45°F | 65°F | 55°F | 4.7" |
| May | 57°F | 77°F | 66°F | 8.9" |
| June | 66°F | 83°F | 74°F | 15.3" |
| July | 69°F | 88°F | 78°F | 9.5" |
| August | 71°F | 89°F | 79°F | 10.9" |
| September | 62°F | 82°F | 71°F | 4.7" |
| October | 50°F | 69°F | 58°F | 8.9" |
| November | 37°F | 57°F | 46°F | 4.0" |
| December | 23°F | 40°F | 30°F | 3.3" |
| Index | Lenexa | Kansas | National |
| Air quality index | 47 | 47 | 42 |
| Pollution index | 170,963 | 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 | 0.000% |
| Benzene | 0.002% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Bonner Springs, KS | 7,846 | 47 | 6.0% |
| Kansas City, KS | 153,014 | 47 | 6.0% |
| Mission Hills, KS | 3,563 | 47 | 6.0% |
| Roeland Park, KS | 6,747 | 47 | 6.0% |
| Kansas City, MO | 491,158 | 47 | 6.0% |
| Lenexa, KS | 54,804 | 47 | 6.0% |
| City | Population | Air Quality Index | National Avg. |
| Cathedral City, CA | 54,812 | 89 | 78.0% |
| Berwyn, IL | 54,850 | 55 | 10.0% |
| Brookhaven, GA | 54,727 | 52 | 4.0% |
| Port Arthur, TX | 54,705 | 45 | 10.0% |
| Normal, IL | 54,699 | 44 | 12.0% |
| Lenexa, KS | 54,804 | 47 | 6.0% |
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