Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 8°F | 38°F | 23°F | 1.3" |
February | 16°F | 44°F | 30°F | 0.7" |
March | 23°F | 56°F | 39°F | 0.6" |
April | 28°F | 64°F | 46°F | 0.7" |
May | 35°F | 72°F | 54°F | 0.9" |
June | 43°F | 85°F | 66°F | 0.4" |
July | 53°F | 88°F | 70°F | 1.6" |
August | 51°F | 85°F | 68°F | 1.4" |
September | 43°F | 78°F | 60°F | 1.8" |
October | 31°F | 66°F | 48°F | 1.3" |
November | 22°F | 54°F | 37°F | 0.8" |
December | 13°F | 40°F | 26°F | 1.1" |
Index | Piedra | Colorado | National |
Air quality index | 44 | 38 | 42 |
Pollution index | 1,838,900 | 2,068,342 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 276 |
Days with moderate air quality | 89 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.000% |
Benzene | 0.030% |
Carbon Tetrachloride | 0.004% |
Lead | 0.000% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Arboles, CO | 410 | 44 | 12.0% |
Bayfield, CO | 2,550 | 44 | 12.0% |
Piedra, CO | 18 | 44 | 12.0% |
City | Population | Air Quality Index | National Avg. |
Rockville, AL | 18 | 42 | 16.0% |
Shoshone, CA | 18 | 15 | 70.0% |
Conejos, CO | 18 | 15 | 70.0% |
Elkport, IA | 18 | 29 | 42.0% |
Bentley, IL | 18 | 29 | 42.0% |
Piedra, CO | 18 | 44 | 12.0% |