Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 10°F | 34°F | 21°F | 0.2" |
February | 13°F | 36°F | 24°F | 0.3" |
March | 21°F | 47°F | 33°F | 0.4" |
April | 25°F | 53°F | 38°F | 1.1" |
May | 33°F | 62°F | 47°F | 1.8" |
June | 42°F | 77°F | 60°F | 1.3" |
July | 49°F | 83°F | 66°F | 1.6" |
August | 46°F | 80°F | 63°F | 1.2" |
September | 39°F | 72°F | 55°F | 1.2" |
October | 29°F | 58°F | 42°F | 1.1" |
November | 20°F | 46°F | 33°F | 0.4" |
December | 10°F | 33°F | 21°F | 0.3" |
Index | Rock River | Wyoming | National |
Air quality index | 47 | 39 | 42 |
Pollution index | 1,923,740 | 1,779,975 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 247 |
Days with moderate air quality | 118 |
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 | 0.010% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Medicine Bow, WY | 272 | 47 | 6.0% |
Arlington, WY | 0 | 47 | 6.0% |
Rock River, WY | 258 | 47 | 6.0% |
City | Population | Air Quality Index | National Avg. |
Gordon, AL | 258 | 35 | 30.0% |
Weogufka, AL | 258 | 38 | 24.0% |
St. Francis, AR | 258 | 26 | 48.0% |
Ambrose, GA | 258 | 26 | 48.0% |
Maalaea, HI | 258 | 15 | 70.0% |
Rock River, WY | 258 | 47 | 6.0% |