| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 20°F | 43°F | 30°F | 0.6" |
| February | 23°F | 47°F | 34°F | 1.2" |
| March | 35°F | 60°F | 46°F | 2.5" |
| April | 45°F | 70°F | 56°F | 4.4" |
| May | 54°F | 77°F | 65°F | 5.6" |
| June | 65°F | 88°F | 76°F | 5.2" |
| July | 69°F | 92°F | 79°F | 4.2" |
| August | 67°F | 90°F | 77°F | 4.9" |
| September | 58°F | 82°F | 69°F | 4.1" |
| October | 46°F | 71°F | 57°F | 3.8" |
| November | 34°F | 58°F | 45°F | 1.5" |
| December | 23°F | 44°F | 33°F | 1.6" |
| Index | Overbrook | Kansas | National |
| Air quality index | 41 | 47 | 42 |
| Pollution index | 1,138,800 | 989,153 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 294 |
| Days with moderate air quality | 70 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 1 |
| Pollutant | Total |
| Arsenic | 0.001% |
| Benzene | 0.020% |
| Carbon Tetrachloride | 0.004% |
| Lead | 0.010% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Osage City, KS | 2,804 | 22 | 56.0% |
| Auburn, KS | 1,078 | 41 | 18.0% |
| Wakarusa, KS | 223 | 41 | 18.0% |
| Burlingame, KS | 837 | 41 | 18.0% |
| Quenemo, KS | 413 | 41 | 18.0% |
| Overbrook, KS | 872 | 41 | 18.0% |
| City | Population | Air Quality Index | National Avg. |
| Cameron, AZ | 872 | 45 | 10.0% |
| Parker Strip, AZ | 872 | 13 | 74.0% |
| Crystal Springs, FL | 872 | 36 | 28.0% |
| West Salem, IL | 872 | 36 | 28.0% |
| Adairville, KY | 872 | 40 | 20.0% |
| Overbrook, KS | 872 | 41 | 18.0% |
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