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 | Rock Creek Park | Colorado | National |
Air quality index | 58 | 38 | 42 |
Pollution index | 1,130,190 | 2,068,342 | 2,726,193 |
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 | 0.000% |
Benzene | 0.020% |
Carbon Tetrachloride | 0.002% |
Lead | 0.010% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Perry Park, CO | 1,821 | 45 | 10.0% |
Larkspur, CO | 244 | 45 | 10.0% |
Castle Rock, CO | 65,176 | 58 | 16.0% |
Roxborough Park, CO | 9,004 | 58 | 16.0% |
Castle Pines, CO | 10,977 | 58 | 16.0% |
Rock Creek Park, CO | 80 | 58 | 16.0% |
City | Population | Air Quality Index | National Avg. |
Woodlawn, AR | 80 | 45 | 10.0% |
Crozier, AZ | 80 | 13 | 74.0% |
Goodyears Bar, CA | 80 | 44 | 12.0% |
Cedar Springs, GA | 80 | 35 | 30.0% |
McIntire, IA | 80 | 15 | 70.0% |
Rock Creek Park, CO | 80 | 58 | 16.0% |