Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 14°F | 39°F | 25°F | 0.4" |
February | 22°F | 47°F | 33°F | 0.5" |
March | 29°F | 59°F | 43°F | 0.5" |
April | 35°F | 66°F | 49°F | 0.7" |
May | 43°F | 75°F | 58°F | 0.9" |
June | 53°F | 89°F | 71°F | 0.3" |
July | 59°F | 91°F | 74°F | 1.0" |
August | 56°F | 88°F | 71°F | 1.1" |
September | 48°F | 80°F | 63°F | 1.2" |
October | 37°F | 67°F | 50°F | 1.0" |
November | 26°F | 55°F | 39°F | 0.5" |
December | 16°F | 39°F | 27°F | 0.5" |
Index | Colona | Colorado | National |
Air quality index | 44 | 38 | 42 |
Pollution index | 805,080 | 2,068,342 | 2,726,193 |
Measurement | Total |
Days measured | 364 |
Days with good air quality | 289 |
Days with moderate air quality | 75 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.020% |
Benzene | 0.010% |
Carbon Tetrachloride | 0.000% |
Lead | 0.010% |
Mercury | 0.010% |
City | Population | Air Quality Index | National Avg. |
Montrose, CO | 19,396 | 44 | 12.0% |
Loghill Village, CO | 707 | 44 | 12.0% |
Ridgway, CO | 1,142 | 44 | 12.0% |
Colona, CO | 42 | 44 | 12.0% |
City | Population | Air Quality Index | National Avg. |
Chignik, AK | 42 | 31 | 38.0% |
Circle, AK | 42 | 38 | 24.0% |
Manley Hot Springs, AK | 42 | 38 | 24.0% |
South Naknek, AK | 42 | 31 | 38.0% |
Corinth, AR | 42 | 38 | 24.0% |
Colona, CO | 42 | 44 | 12.0% |