| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 31°F | 39°F | 35°F | 4.9" |
| February | 31°F | 39°F | 34°F | 5.1" |
| March | 32°F | 42°F | 36°F | 4.5" |
| April | 37°F | 50°F | 42°F | 5.7" |
| May | 44°F | 58°F | 50°F | 5.3" |
| June | 49°F | 62°F | 54°F | 3.7" |
| July | 52°F | 64°F | 57°F | 5.0" |
| August | 52°F | 64°F | 56°F | 7.2" |
| September | 48°F | 58°F | 52°F | 9.9" |
| October | 42°F | 50°F | 45°F | 9.0" |
| November | 34°F | 41°F | 37°F | 6.7" |
| December | 29°F | 37°F | 33°F | 6.7" |
| Index | Wrangell | Alaska | National |
| Air quality index | 20 | 30 | 42 |
| Pollution index | 285,879 | 11,243,194 | 2,726,193 |
| Measurement | Total |
| Days measured | 362 |
| Days with good air quality | 308 |
| Days with moderate air quality | 51 |
| Days w/ poor A.Q. for sensitive groups | 3 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Wrangell, AK | 2,510 | 20 | 60.0% |
| City | Population | Air Quality Index | National Avg. |
| Weatherby Lake, MO | 2,510 | 47 | 6.0% |
| Fredericktown, OH | 2,510 | 41 | 18.0% |
| Kiefer, OK | 2,510 | 45 | 10.0% |
| Jacobus, PA | 2,510 | 41 | 18.0% |
| Crewe, VA | 2,510 | 44 | 12.0% |
| Wrangell, AK | 2,510 | 20 | 60.0% |
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