| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 1°F | 13°F | 6°F | 0.1" |
| February | 3°F | 17°F | 10°F | 0.2" |
| March | 2°F | 17°F | 9°F | 0.1" |
| April | 17°F | 29°F | 23°F | 0.1" |
| May | 31°F | 43°F | 36°F | 0.5" |
| June | 42°F | 53°F | 47°F | 1.4" |
| July | 47°F | 56°F | 51°F | 0.9" |
| August | 48°F | 57°F | 52°F | 1.8" |
| September | 43°F | 52°F | 47°F | 2.2" |
| October | 28°F | 38°F | 32°F | 0.9" |
| November | 16°F | 27°F | 21°F | 0.8" |
| December | 9°F | 21°F | 15°F | 0.5" |
| Index | Akiachak | 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. |
| Bethel, AK | 6,548 | 31 | 38.0% |
| Kwethluk, AK | 459 | 31 | 38.0% |
| Oscarville, AK | 95 | 31 | 38.0% |
| Akiak, AK | 298 | 31 | 38.0% |
| Akiachak, AK | 461 | 31 | 38.0% |
| City | Population | Air Quality Index | National Avg. |
| Tees Toh, AZ | 461 | 45 | 10.0% |
| Bonaparte, IA | 461 | 29 | 42.0% |
| Holyrood, KS | 461 | 40 | 20.0% |
| New Germany, MN | 461 | 46 | 8.0% |
| New Augusta, MS | 461 | 35 | 30.0% |
| Akiachak, AK | 461 | 31 | 38.0% |
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