Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 14°F | 37°F | 26°F | 0.6" |
February | 15°F | 41°F | 27°F | 0.6" |
March | 23°F | 53°F | 37°F | 1.0" |
April | 27°F | 60°F | 42°F | 1.6" |
May | 36°F | 69°F | 51°F | 2.5" |
June | 44°F | 83°F | 64°F | 1.2" |
July | 52°F | 92°F | 72°F | 2.3" |
August | 50°F | 89°F | 69°F | 1.1" |
September | 42°F | 79°F | 59°F | 0.9" |
October | 32°F | 64°F | 46°F | 1.3" |
November | 23°F | 51°F | 36°F | 0.5" |
December | 12°F | 36°F | 24°F | 0.9" |
Index | Casper Mountain | Wyoming | National |
Air quality index | 42 | 39 | 42 |
Pollution index | 873,248 | 1,779,975 | 2,726,193 |
Measurement | Total |
Days measured | 364 |
Days with good air quality | 327 |
Days with moderate air quality | 37 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.050% |
Benzene | 0.010% |
Carbon Tetrachloride | 0.001% |
Lead | 0.020% |
Mercury | 0.140% |
City | Population | Air Quality Index | National Avg. |
Meadow Acres, WY | 70 | 42 | 16.0% |
Hartrandt, WY | 1,016 | 42 | 16.0% |
Bar Nunn, WY | 2,786 | 42 | 16.0% |
Mills, WY | 3,955 | 42 | 16.0% |
Brookhurst, WY | 114 | 42 | 16.0% |
Casper Mountain, WY | 965 | 42 | 16.0% |
City | Population | Air Quality Index | National Avg. |
Windsor village, IL | 965 | 40 | 20.0% |
Harmony, IN | 965 | 45 | 10.0% |
Aulander, NC | 965 | 36 | 28.0% |
Belmont, WV | 965 | 35 | 30.0% |
Mnjikaning First Nation 32, ON | 965 | n/a | |
Casper Mountain, WY | 965 | 42 | 16.0% |