| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 2°F | 14°F | 8°F | 0.3" |
| February | -4°F | 9°F | 2°F | 0.3" |
| March | -6°F | 11°F | 3°F | 0.2" |
| April | 9°F | 24°F | 16°F | 0.1" |
| May | 27°F | 36°F | 31°F | 1.0" |
| June | 37°F | 46°F | 41°F | 1.1" |
| July | 45°F | 52°F | 48°F | 1.4" |
| August | 45°F | 53°F | 49°F | 1.7" |
| September | 38°F | 46°F | 42°F | 1.4" |
| October | 30°F | 38°F | 34°F | 2.7" |
| November | 20°F | 31°F | 25°F | 0.5" |
| December | 12°F | 22°F | 17°F | 0.7" |
| Index | Wales | 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. |
| Wales, AK | 222 | 38 | 24.0% |
| City | Population | Air Quality Index | National Avg. |
| Newtok, AK | 222 | 31 | 38.0% |
| Goshen, AL | 222 | 52 | 4.0% |
| Raiford, FL | 222 | 38 | 24.0% |
| Corwith, IA | 222 | 15 | 70.0% |
| Blanchard, ID | 222 | 43 | 14.0% |
| Wales, AK | 222 | 38 | 24.0% |
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