| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | -2°F | 35°F | 15°F | 0.4" |
| February | 6°F | 43°F | 24°F | 0.3" |
| March | 17°F | 56°F | 36°F | 0.6" |
| April | 24°F | 63°F | 44°F | 0.7" |
| May | 32°F | 71°F | 52°F | 0.7" |
| June | 40°F | 83°F | 63°F | 0.3" |
| July | 47°F | 85°F | 66°F | 1.4" |
| August | 44°F | 82°F | 63°F | 1.1" |
| September | 36°F | 77°F | 56°F | 1.1" |
| October | 25°F | 66°F | 44°F | 0.8" |
| November | 12°F | 53°F | 31°F | 0.5" |
| December | 0°F | 38°F | 18°F | 0.5" |
| Index | Westcliffe | Colorado | National |
| Air quality index | 16 | 38 | 42 |
| Pollution index | 1,123,580 | 2,068,342 | 2,726,193 |
| Measurement | Total |
| Days measured | 62 |
| Days with good air quality | 60 |
| Days with moderate air quality | 2 |
| Days w/ poor A.Q. for sensitive groups | |
| Days with unhealthy air quality |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.010% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Crestone, CO | 44 | 16 | 68.0% |
| Silver Cliff, CO | 598 | 16 | 68.0% |
| Westcliffe, CO | 559 | 16 | 68.0% |
| City | Population | Air Quality Index | National Avg. |
| Walnut Creek, AZ | 559 | 13 | 74.0% |
| Winslow West, AZ | 559 | 45 | 10.0% |
| Beverly Beach, FL | 559 | 31 | 38.0% |
| Meadville, MO | 559 | 38 | 24.0% |
| Pope, MS | 559 | 33 | 34.0% |
| Westcliffe, CO | 559 | 16 | 68.0% |
Here are the best places to live in Colorado
These are the 10 cheapest cities in Colorado
See the best places to live in Westcliffe
Most Dangerous Cities In The US