| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 19°F | 46°F | 32°F | 0.5" |
| February | 20°F | 48°F | 33°F | 0.5" |
| March | 28°F | 58°F | 42°F | 0.9" |
| April | 33°F | 63°F | 47°F | 2.0" |
| May | 42°F | 70°F | 55°F | 2.3" |
| June | 53°F | 85°F | 68°F | 2.0" |
| July | 59°F | 88°F | 73°F | 2.3" |
| August | 57°F | 86°F | 71°F | 2.1" |
| September | 49°F | 79°F | 63°F | 1.7" |
| October | 37°F | 67°F | 51°F | 1.3" |
| November | 28°F | 58°F | 41°F | 0.4" |
| December | 18°F | 45°F | 30°F | 0.5" |
| Index | Stonegate | Colorado | National |
| Air quality index | 58 | 38 | 50 |
| Pollution index | 10,406,900 | 2,034,619 | 5,066,862 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 91 |
| Days with moderate air quality | 252 |
| Days w/ poor A.Q. for sensitive groups | 20 |
| Days with unhealthy air quality | 2 |
| Pollutant | Total |
| Arsenic | 0.080% |
| Benzene | 0.070% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.250% |
| Mercury | 0.100% |
| City, State | Population | Air Quality Index | National Avg. |
| Cherry Hills Village, CO | 6,414 | 58 | 16% |
| Sheridan, CO | 5,965 | 58 | 16% |
| Castle Pines Village, CO | 4,518 | 58 | 16% |
| Ponderosa Park, CO | 3,226 | 58 | 16% |
| The Pinery, CO | 12,160 | 58 | 16% |
| Stonegate, CO | 9,478 | 58 | 16% |
| City, State | Population | Air Quality Index | National Avg. |
| Danville, IN | 9,482 | 54 | 8% |
| Amityville, NY | 9,484 | 51 | 2% |
| Winterville, NC | 9,484 | 38 | 24% |
| Pryor Creek, OK | 9,484 | 36 | 28% |
| LaSalle, IL | 9,484 | 0 | 100% |
| Stonegate, CO | 9,478 | 58 | 16% |
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