| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 16°F | 45°F | 30°F | 3.2" |
| February | 18°F | 46°F | 31°F | 2.6" |
| March | 25°F | 56°F | 40°F | 2.1" |
| April | 31°F | 60°F | 45°F | 2.9" |
| May | 39°F | 68°F | 53°F | 4.9" |
| June | 49°F | 82°F | 66°F | 2.8" |
| July | 54°F | 84°F | 69°F | 5.5" |
| August | 52°F | 82°F | 66°F | 4.4" |
| September | 45°F | 76°F | 60°F | 5.5" |
| October | 34°F | 65°F | 48°F | 2.0" |
| November | 24°F | 55°F | 39°F | 2.1" |
| December | 15°F | 44°F | 28°F | 3.1" |
| Index | Florissant | Colorado | National |
| Air quality index | 45 | 38 | 50 |
| Pollution index | 187,725 | 2,068,342 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 259 |
| Days with moderate air quality | 106 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.002% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Cripple Creek, CO | 1,238 | 16 | 68.0% |
| Guffey, CO | 70 | 16 | 68.0% |
| Midland, CO | 173 | 45 | 10.0% |
| Divide, CO | 120 | 45 | 10.0% |
| Westcreek, CO | 116 | 45 | 10.0% |
| Florissant, CO | 43 | 45 | 10.0% |
| City | Population | Air Quality Index | National Avg. |
| Port Clarence, AK | 43 | 38 | 24.0% |
| Big Flat, AR | 43 | 36 | 28.0% |
| Black Springs, AR | 43 | 38 | 24.0% |
| Comobabi, AZ | 43 | 47 | 6.0% |
| New Pine Creek, CA | 43 | 29 | 42.0% |
| Florissant, CO | 43 | 45 | 10.0% |
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