Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 9°F | 24°F | 16°F | 0.5" |
February | 12°F | 29°F | 21°F | 0.5" |
March | 15°F | 35°F | 25°F | 0.6" |
April | 30°F | 48°F | 39°F | 0.4" |
May | 41°F | 60°F | 50°F | 0.5" |
June | 49°F | 66°F | 57°F | 1.1" |
July | 54°F | 69°F | 60°F | 1.9" |
August | 51°F | 66°F | 58°F | 2.9" |
September | 43°F | 58°F | 50°F | 3.5" |
October | 31°F | 45°F | 37°F | 1.5" |
November | 14°F | 29°F | 22°F | 0.6" |
December | 11°F | 26°F | 19°F | 0.8" |
Index | Birchwood | Anchorage | Alaska |
Air quality index | 31 | 31 | 30 |
Pollution index | 7,145,440 | 7,145,440 | 11,243,194 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 262 |
Days with moderate air quality | 92 |
Days w/ poor A.Q. for sensitive groups | 7 |
Days with unhealthy air quality | 4 |
Pollutant | Total |
Arsenic | 0.030% |
Benzene | 0.130% |
Carbon Tetrachloride | 0.020% |
Lead | 0.140% |
Mercury | 0.001% |
City | Population | Air Quality Index | National Avg. |
Gateway, AK | 5,965 | 31 | 38.0% |
Wasilla, AK | 10,469 | 31 | 38.0% |
Lakes, AK | 8,944 | 31 | 38.0% |
Palmer, AK | 7,359 | 31 | 38.0% |
Knik-Fairview, AK | 17,682 | 31 | 38.0% |
Anchorage, AK | 292,090 | 31 | 38.0% |
City | Population | Air Quality Index | National Avg. |
Gatineau, QC | 293,695 | n/a | |
Greensboro, NC | 294,395 | 43 | 14.0% |
Plano, TX | 288,870 | 51 | 2.0% |
Lincoln, NE | 286,388 | 31 | 38.0% |
Orlando, FL | 284,817 | 39 | 22.0% |
Anchorage, AK | 292,090 | 31 | 38.0% |