Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | n/a°F | n/a°F | n/a°F | n/a |
February | n/a°F | n/a°F | n/a°F | n/a |
March | n/a°F | n/a°F | n/a°F | n/a |
April | n/a°F | n/a°F | n/a°F | n/a |
May | n/a°F | n/a°F | n/a°F | n/a |
June | n/a°F | n/a°F | n/a°F | n/a |
July | n/a°F | n/a°F | n/a°F | n/a |
August | n/a°F | n/a°F | n/a°F | n/a |
September | n/a°F | n/a°F | n/a°F | n/a |
October | n/a°F | n/a°F | n/a°F | n/a |
November | n/a°F | n/a°F | n/a°F | n/a |
December | n/a°F | n/a°F | n/a°F | n/a |
Index | Yellowknife | Northwest Territories | National |
Air quality index | n/a | n/a | 42 |
Pollution index | n/a | n/a | 2,726,193 |
Measurement | Total |
Days measured | |
Days with good air quality | |
Days with moderate air quality | |
Days w/ poor A.Q. for sensitive groups | |
Days with unhealthy air quality |
Pollutant | Total |
Arsenic | n/a% |
Benzene | n/a% |
Carbon Tetrachloride | n/a% |
Lead | n/a% |
Mercury | n/a% |
City | Population | Air Quality Index | National Avg. |
Patterson, CA | 22,309 | 49 | 2.0% |
Waynesboro, VA | 22,300 | 40 | 20.0% |
Frederickson, WA | 22,290 | 30 | 40.0% |
Middletown, DE | 22,350 | 42 | 16.0% |
Prairie Village, KS | 22,255 | 47 | 6.0% |
Yellowknife, NT | 22,316 | n/a |