| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | -10°F | 5°F | -3°F | 0.1" |
| February | -10°F | 8°F | -1°F | 0.1" |
| March | -11°F | 6°F | -3°F | 0.1" |
| April | 6°F | 21°F | 14°F | 0.1" |
| May | 26°F | 41°F | 33°F | 0.2" |
| June | 38°F | 56°F | 47°F | 0.4" |
| July | 45°F | 63°F | 54°F | 1.6" |
| August | 43°F | 59°F | 51°F | 1.5" |
| September | 35°F | 50°F | 43°F | 0.8" |
| October | 23°F | 36°F | 30°F | 0.4" |
| November | 4°F | 20°F | 12°F | 0.2" |
| December | -3°F | 13°F | 5°F | 0.1" |
| Index | Deering | Alaska | National |
| Air quality index | 38 | 30 | 42 |
| Pollution index | 481,700 | 11,243,194 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 230 |
| Days with moderate air quality | 96 |
| Days w/ poor A.Q. for sensitive groups | 18 |
| Days with unhealthy air quality | 16 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Deering, AK | 150 | 38 | 24.0% |
| City | Population | Air Quality Index | National Avg. |
| Nightmute, AK | 150 | 31 | 38.0% |
| Port Graham, AK | 150 | 31 | 38.0% |
| Garden City, IA | 150 | 37 | 26.0% |
| Palmer, IA | 150 | 37 | 26.0% |
| Welton, IA | 150 | 42 | 16.0% |
| Deering, AK | 150 | 38 | 24.0% |
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