| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | -3°F | 14°F | 5°F | 0.7" |
| February | 2°F | 21°F | 12°F | 0.8" |
| March | 1°F | 23°F | 12°F | 0.7" |
| April | 20°F | 40°F | 31°F | 1.0" |
| May | 36°F | 56°F | 46°F | 2.3" |
| June | 45°F | 65°F | 54°F | 2.3" |
| July | 49°F | 66°F | 57°F | 3.1" |
| August | 46°F | 62°F | 54°F | 4.8" |
| September | 39°F | 54°F | 46°F | 4.6" |
| October | 26°F | 39°F | 33°F | 3.7" |
| November | 6°F | 22°F | 14°F | 2.1" |
| December | 2°F | 19°F | 11°F | 1.7" |
| Index | Aniak | Alaska | National |
| Air quality index | 31 | 30 | 42 |
| Pollution index | 1,330,810 | 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 | 0.000% |
| Benzene | 0.030% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.020% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Chuathbaluk, AK | 89 | 31 | 38.0% |
| Aniak, AK | 557 | 31 | 38.0% |
| City | Population | Air Quality Index | National Avg. |
| Batavia, IA | 557 | 29 | 42.0% |
| Audubon, MN | 557 | 33 | 34.0% |
| Branson West, MO | 557 | 18 | 64.0% |
| Tannersville, NY | 557 | 36 | 28.0% |
| Ravia, OK | 557 | 43 | 14.0% |
| Aniak, AK | 557 | 31 | 38.0% |
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