| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 11°F | 40°F | 24°F | 0.6" |
| February | 14°F | 42°F | 27°F | 0.8" |
| March | 23°F | 54°F | 37°F | 1.2" |
| April | 29°F | 60°F | 44°F | 1.9" |
| May | 37°F | 68°F | 52°F | 3.4" |
| June | 46°F | 81°F | 63°F | 2.0" |
| July | 53°F | 92°F | 73°F | 0.9" |
| August | 51°F | 90°F | 69°F | 0.6" |
| September | 42°F | 80°F | 59°F | 1.7" |
| October | 32°F | 64°F | 46°F | 1.7" |
| November | 20°F | 51°F | 34°F | 1.0" |
| December | 10°F | 37°F | 22°F | 0.7" |
| Index | Story | 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. |
| Big Horn, WY | 382 | 39 | 22.0% |
| Story, WY | 805 | 39 | 22.0% |
| City | Population | Air Quality Index | National Avg. |
| Imboden, AR | 805 | 26 | 48.0% |
| Cobb, CA | 805 | 31 | 38.0% |
| Patterson, GA | 805 | 36 | 28.0% |
| Hinton, IA | 805 | 35 | 30.0% |
| Lake Panorama, IA | 805 | 39 | 22.0% |
| Story, WY | 805 | 39 | 22.0% |
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