Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 10°F | 34°F | 21°F | 0.5" |
February | 15°F | 40°F | 26°F | 0.7" |
March | 25°F | 52°F | 38°F | 1.6" |
April | 31°F | 59°F | 44°F | 2.1" |
May | 39°F | 67°F | 52°F | 3.4" |
June | 48°F | 81°F | 65°F | 0.8" |
July | 56°F | 90°F | 73°F | 0.5" |
August | 54°F | 87°F | 70°F | 0.6" |
September | 45°F | 77°F | 61°F | 1.1" |
October | 34°F | 61°F | 46°F | 1.6" |
November | 23°F | 49°F | 35°F | 0.6" |
December | 9°F | 33°F | 21°F | 1.0" |
Index | Jeffrey City | Wyoming | National |
Air quality index | 45 | 39 | 42 |
Pollution index | 1,128,450 | 1,779,975 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 294 |
Days with moderate air quality | 69 |
Days w/ poor A.Q. for sensitive groups | 2 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.004% |
Benzene | 0.020% |
Carbon Tetrachloride | 0.001% |
Lead | 0.010% |
Mercury | 0.001% |
City | Population | Air Quality Index | National Avg. |
Jeffrey City, WY | 23 | 45 | 10.0% |
City | Population | Air Quality Index | National Avg. |
Ferry, AK | 23 | 38 | 24.0% |
Benton, AL | 23 | 52 | 4.0% |
Oak Hill, AL | 23 | 52 | 4.0% |
Coulterville, CA | 23 | 39 | 22.0% |
Parshall, CO | 23 | 47 | 6.0% |
Jeffrey City, WY | 23 | 45 | 10.0% |