Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 18°F | 36°F | 26°F | 0.9" |
February | 20°F | 37°F | 28°F | 0.8" |
March | 26°F | 44°F | 34°F | 2.4" |
April | 31°F | 50°F | 40°F | 1.8" |
May | 37°F | 59°F | 47°F | 2.4" |
June | 49°F | 73°F | 61°F | 2.8" |
July | 53°F | 75°F | 63°F | 2.1" |
August | 51°F | 72°F | 60°F | 2.5" |
September | 44°F | 67°F | 54°F | 2.2" |
October | 36°F | 56°F | 45°F | 3.3" |
November | 28°F | 46°F | 35°F | 0.6" |
December | 19°F | 36°F | 27°F | 1.2" |
Index | Silverton | Colorado | National |
Air quality index | 44 | 38 | 42 |
Pollution index | 342,805 | 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 | 0.010% |
Carbon Tetrachloride | 0.000% |
Lead | 0.001% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Mountain Village, CO | 1,776 | 44 | 12.0% |
Ophir, CO | 218 | 44 | 12.0% |
Telluride, CO | 2,059 | 44 | 12.0% |
Ouray, CO | 1,046 | 44 | 12.0% |
Silverton, CO | 612 | 44 | 12.0% |
City | Population | Air Quality Index | National Avg. |
Wilsonville, IL | 612 | 54 | 8.0% |
Glen Elder, KS | 612 | 32 | 36.0% |
Leeton, MO | 612 | 47 | 6.0% |
Carlton, MT | 612 | 40 | 20.0% |
Coyle, OK | 612 | 48 | 4.0% |
Silverton, CO | 612 | 44 | 12.0% |