| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 16°F | 45°F | 29°F | 0.1" |
| February | 18°F | 47°F | 31°F | 0.3" |
| March | 27°F | 60°F | 42°F | 0.6" |
| April | 35°F | 66°F | 49°F | 1.6" |
| May | 44°F | 75°F | 58°F | 2.3" |
| June | 56°F | 88°F | 71°F | 2.2" |
| July | 61°F | 92°F | 76°F | 3.2" |
| August | 59°F | 89°F | 72°F | 2.6" |
| September | 50°F | 82°F | 64°F | 1.7" |
| October | 37°F | 69°F | 51°F | 1.1" |
| November | 26°F | 57°F | 40°F | 0.2" |
| December | 16°F | 44°F | 28°F | 0.4" |
| Index | Weskan | Kansas | National |
| Air quality index | 15 | 47 | 42 |
| Pollution index | 7,735,380 | 989,153 | 2,726,193 |
| Measurement | Total |
| Days measured | 304 |
| Days with good air quality | 301 |
| Days with moderate air quality | 3 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.110% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.140% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Sharon Springs, KS | 987 | 15 | 70.0% |
| Weskan, KS | 103 | 15 | 70.0% |
| City | Population | Air Quality Index | National Avg. |
| Broomtown, AL | 103 | 39 | 22.0% |
| Fargo, AR | 103 | 45 | 10.0% |
| Sedalia, CO | 103 | 58 | 16.0% |
| Manassas, GA | 103 | 39 | 22.0% |
| Matthews, GA | 103 | 47 | 6.0% |
| Weskan, KS | 103 | 15 | 70.0% |
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