| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 23°F | 43°F | 32°F | 1.5" |
| February | 25°F | 46°F | 35°F | 1.5" |
| March | 31°F | 54°F | 42°F | 2.8" |
| April | 34°F | 57°F | 45°F | 5.2" |
| May | 42°F | 64°F | 52°F | 7.4" |
| June | 57°F | 79°F | 68°F | 4.1" |
| July | 60°F | 81°F | 70°F | 5.3" |
| August | 57°F | 78°F | 67°F | 5.2" |
| September | 54°F | 74°F | 63°F | 3.3" |
| October | 42°F | 64°F | 52°F | 4.1" |
| November | 31°F | 53°F | 42°F | 2.0" |
| December | 22°F | 44°F | 32°F | 1.2" |
| Index | Goldfield | Colorado | National |
| Air quality index | 16 | 38 | 42 |
| Pollution index | 1,399,510 | 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 | 0.003% |
| Benzene | 0.020% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.030% |
| Mercury | 0.070% |
| City | Population | Air Quality Index | National Avg. |
| Cripple Creek, CO | 975 | 16 | 68.0% |
| Victor, CO | 449 | 16 | 68.0% |
| Green Mountain Falls, CO | 685 | 45 | 10.0% |
| Manitou Springs, CO | 5,342 | 45 | 10.0% |
| Midland, CO | 269 | 45 | 10.0% |
| Goldfield, CO | 62 | 16 | 68.0% |
| City | Population | Air Quality Index | National Avg. |
| Port Heiden, AK | 62 | 31 | 38.0% |
| Istachatta, FL | 62 | 30 | 40.0% |
| Greenville, IA | 62 | 35 | 30.0% |
| Homestead, IA | 62 | 39 | 22.0% |
| Northboro, IA | 62 | 40 | 20.0% |
| Goldfield, CO | 62 | 16 | 68.0% |
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