| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 18°F | 43°F | 29°F | 2.6" |
| February | 20°F | 47°F | 32°F | 0.5" |
| March | 28°F | 59°F | 42°F | 1.4" |
| April | 34°F | 64°F | 47°F | 3.7" |
| May | 43°F | 71°F | 55°F | 4.4" |
| June | 52°F | 85°F | 68°F | 2.1" |
| July | 57°F | 90°F | 72°F | 2.6" |
| August | 56°F | 87°F | 71°F | 2.6" |
| September | 50°F | 81°F | 64°F | 1.8" |
| October | 38°F | 66°F | 50°F | 2.2" |
| November | 27°F | 55°F | 39°F | 1.2" |
| December | 16°F | 42°F | 27°F | 0.4" |
| Index | Severance | Colorado | National |
| Air quality index | 45 | 38 | 42 |
| Pollution index | 205,748 | 2,068,342 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 252 |
| Days with moderate air quality | 110 |
| Days w/ poor A.Q. for sensitive groups | 3 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.004% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Evans, CO | 22,128 | 45 | 10.0% |
| Johnstown, CO | 14,357 | 45 | 10.0% |
| Garden City, CO | 208 | 45 | 10.0% |
| Ault, CO | 2,153 | 45 | 10.0% |
| Windsor, CO | 23,679 | 45 | 10.0% |
| Severance, CO | 5,611 | 45 | 10.0% |
| City | Population | Air Quality Index | National Avg. |
| Bryn Mawr, PA | 5,611 | 51 | 2.0% |
| Wake Village, TX | 5,611 | 39 | 22.0% |
| Willow Springs, IL | 5,610 | 55 | 10.0% |
| North Manchester, IN | 5,612 | 37 | 26.0% |
| Spring Ridge, MD | 5,612 | 40 | 20.0% |
| Severance, CO | 5,611 | 45 | 10.0% |
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