| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 10°F | 28°F | 19°F | 3.3" |
| February | 15°F | 34°F | 24°F | 1.6" |
| March | 22°F | 44°F | 33°F | 2.3" |
| April | 31°F | 55°F | 44°F | 3.6" |
| May | 38°F | 65°F | 54°F | 4.4" |
| June | 44°F | 75°F | 63°F | 3.2" |
| July | 52°F | 90°F | 75°F | 2.6" |
| August | 50°F | 83°F | 69°F | 2.6" |
| September | 39°F | 73°F | 58°F | 2.8" |
| October | 32°F | 59°F | 45°F | 3.6" |
| November | 23°F | 46°F | 34°F | 1.2" |
| December | 15°F | 30°F | 22°F | 1.7" |
| Index | Smoot | Wyoming | National |
| Air quality index | 43 | 39 | 42 |
| Pollution index | 971,862 | 1,779,975 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 326 |
| Days with moderate air quality | 39 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.003% |
| Benzene | 0.020% |
| Carbon Tetrachloride | 0.004% |
| Lead | 0.001% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Fairview, WY | 78 | 43 | 14.0% |
| Auburn, WY | 631 | 43 | 14.0% |
| Osmond, WY | 828 | 43 | 14.0% |
| Grover, WY | 875 | 43 | 14.0% |
| Afton, WY | 1,984 | 43 | 14.0% |
| Smoot, WY | 369 | 43 | 14.0% |
| City | Population | Air Quality Index | National Avg. |
| Forbestown, CA | 369 | 46 | 8.0% |
| Topaz, CA | 369 | 13 | 74.0% |
| South Fork, CO | 369 | 44 | 12.0% |
| Kelley, IA | 369 | 37 | 26.0% |
| Tetonia, ID | 369 | 43 | 14.0% |
| Smoot, WY | 369 | 43 | 14.0% |
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