| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 11°F | 34°F | 20°F | 6.4" |
| February | 17°F | 40°F | 27°F | 1.1" |
| March | 25°F | 51°F | 36°F | 1.6" |
| April | 30°F | 59°F | 44°F | 1.8" |
| May | 38°F | 68°F | 52°F | 2.4" |
| June | 46°F | 82°F | 64°F | 1.3" |
| July | 52°F | 85°F | 69°F | 2.2" |
| August | 50°F | 82°F | 66°F | 1.7" |
| September | 42°F | 76°F | 58°F | 2.6" |
| October | 32°F | 62°F | 45°F | 2.8" |
| November | 22°F | 49°F | 33°F | 1.9" |
| December | 12°F | 35°F | 22°F | 1.1" |
| Index | Avon | Colorado | National |
| Air quality index | 47 | 38 | 42 |
| Pollution index | 48,484 | 2,068,342 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 227 |
| Days with moderate air quality | 133 |
| Days w/ poor A.Q. for sensitive groups | 5 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.001% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Red Cliff, CO | 318 | 47 | 6.0% |
| Edwards, CO | 9,347 | 47 | 6.0% |
| Vail, CO | 5,614 | 47 | 6.0% |
| Fulford, CO | 0 | 47 | 6.0% |
| Wolcott, CO | 0 | 47 | 6.0% |
| Avon, CO | 6,711 | 47 | 6.0% |
| City | Population | Air Quality Index | National Avg. |
| Belfast, ME | 6,710 | 36 | 28.0% |
| Lake Hallie, WI | 6,710 | 34 | 32.0% |
| Moapa Valley, NV | 6,708 | 54 | 8.0% |
| Lionville, PA | 6,707 | 42 | 16.0% |
| Scottsburg, IN | 6,715 | 35 | 30.0% |
| Avon, CO | 6,711 | 47 | 6.0% |
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