| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 26°F | 43°F | 33°F | 4.8" |
| February | 31°F | 51°F | 40°F | 3.4" |
| March | 42°F | 66°F | 53°F | 10.7" |
| April | 47°F | 69°F | 57°F | 2.0" |
| May | 60°F | 79°F | 69°F | 8.9" |
| June | 68°F | 87°F | 77°F | 19.0" |
| July | 70°F | 92°F | 81°F | 8.2" |
| August | 73°F | 93°F | 83°F | 9.2" |
| September | 65°F | 88°F | 75°F | 6.1" |
| October | 53°F | 75°F | 62°F | 8.0" |
| November | 38°F | 64°F | 50°F | 0.1" |
| December | 25°F | 46°F | 34°F | 3.5" |
| Index | Dexter | Kansas | National |
| Air quality index | 40 | 47 | 42 |
| Pollution index | 121,713 | 989,153 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 292 |
| Days with moderate air quality | 72 |
| Days w/ poor A.Q. for sensitive groups | 1 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.003% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Winfield, KS | 11,990 | 40 | 20.0% |
| Cambridge, KS | 102 | 40 | 20.0% |
| Grenola, KS | 180 | 40 | 20.0% |
| Cedar Vale, KS | 668 | 40 | 20.0% |
| Burden, KS | 632 | 40 | 20.0% |
| Dexter, KS | 604 | 40 | 20.0% |
| City | Population | Air Quality Index | National Avg. |
| Turrell, AR | 604 | 45 | 10.0% |
| Greenwood, FL | 604 | 35 | 30.0% |
| Paukaa, HI | 604 | 16 | 68.0% |
| Lyndon, IL | 604 | 42 | 16.0% |
| Hanover, KS | 604 | 32 | 36.0% |
| Dexter, KS | 604 | 40 | 20.0% |
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