| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 6°F | 22°F | 13°F | 1.0" |
| February | 11°F | 30°F | 20°F | 0.9" |
| March | 11°F | 34°F | 22°F | 1.2" |
| April | 26°F | 45°F | 36°F | 0.7" |
| May | 35°F | 56°F | 46°F | 1.6" |
| June | 43°F | 62°F | 52°F | 2.0" |
| July | 48°F | 65°F | 56°F | 2.8" |
| August | 47°F | 63°F | 55°F | 3.1" |
| September | 40°F | 57°F | 48°F | 3.7" |
| October | 29°F | 45°F | 36°F | 2.1" |
| November | 14°F | 30°F | 21°F | 1.9" |
| December | 10°F | 24°F | 17°F | 1.2" |
| Index | Sterling | Alaska | National |
| Air quality index | 31 | 30 | 42 |
| Pollution index | 2,169,570 | 11,243,194 | 2,726,193 |
| 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 | 0.002% |
| Benzene | 0.040% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.020% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Kenai, AK | 7,799 | 31 | 38.0% |
| Ridgeway, AK | 2,631 | 31 | 38.0% |
| Soldotna, AK | 4,705 | 31 | 38.0% |
| Funny River, AK | 1,340 | 31 | 38.0% |
| Sterling, AK | 5,150 | 31 | 38.0% |
| City | Population | Air Quality Index | National Avg. |
| Johnstown, OH | 5,149 | 46 | 8.0% |
| Lanoraie, QC | 5,148 | n/a | |
| Colchester, CT | 5,147 | 33 | 34.0% |
| Massac, KY | 5,154 | 44 | 12.0% |
| Silver Hill, MD | 5,155 | 47 | 6.0% |
| Sterling, AK | 5,150 | 31 | 38.0% |
Here are the best places to live in Alaska
Check out the 10 safest cities in Alaska
These are the largest cities in Alaska
These are the 10 cheapest cities in Alaska