| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 5°F | 31°F | 17°F | 0.2" |
| February | 12°F | 37°F | 23°F | 0.1" |
| March | 26°F | 55°F | 39°F | 0.2" |
| April | 33°F | 62°F | 47°F | 0.4" |
| May | 43°F | 72°F | 56°F | 1.4" |
| June | 52°F | 85°F | 68°F | 0.8" |
| July | 59°F | 94°F | 77°F | 0.2" |
| August | 55°F | 91°F | 73°F | 0.3" |
| September | 45°F | 80°F | 62°F | 0.8" |
| October | 34°F | 63°F | 47°F | 0.8" |
| November | 20°F | 47°F | 32°F | 0.2" |
| December | 6°F | 30°F | 17°F | 0.1" |
| Index | Manderson | Wyoming | National |
| Air quality index | 39 | 39 | 42 |
| Pollution index | 554,734 | 1,779,975 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 325 |
| Days with moderate air quality | 40 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.005% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.001% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Basin, WY | 1,421 | 39 | 22.0% |
| Manderson, WY | 93 | 39 | 22.0% |
| City | Population | Air Quality Index | National Avg. |
| Diomede, AK | 93 | 38 | 24.0% |
| Sun Valley, AZ | 93 | 44 | 12.0% |
| Glasgow, IL | 93 | 40 | 20.0% |
| Sims, IN | 93 | 37 | 26.0% |
| Highland Beach, MD | 93 | 46 | 8.0% |
| Manderson, WY | 93 | 39 | 22.0% |
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