| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 30°F | 38°F | 34°F | 8.0" |
| February | 30°F | 39°F | 34°F | 5.4" |
| March | 30°F | 40°F | 35°F | 3.8" |
| April | 35°F | 48°F | 41°F | 5.0" |
| May | 41°F | 55°F | 47°F | 3.4" |
| June | 46°F | 60°F | 53°F | 3.7" |
| July | 51°F | 62°F | 56°F | 5.3" |
| August | 51°F | 62°F | 56°F | 5.7" |
| September | 46°F | 57°F | 51°F | 9.3" |
| October | 39°F | 49°F | 44°F | 5.2" |
| November | 32°F | 40°F | 36°F | 6.0" |
| December | 29°F | 36°F | 33°F | 5.7" |
| Index | Hobart Bay | Alaska | National |
| Air quality index | 20 | 30 | 42 |
| Pollution index | 926,820 | 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 | 0.070% |
| Benzene | 0.020% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.030% |
| Mercury | 0.030% |
| City | Population | Air Quality Index | National Avg. |
| Hobart Bay, AK | 0 | 20 | 60.0% |
| City | Population | Air Quality Index | National Avg. |
| Chase, AK | 0 | 31 | 38.0% |
| Chiniak, AK | 0 | 31 | 38.0% |
| Chisana, AK | 0 | 31 | 38.0% |
| Dot Lake, AK | 0 | 38 | 24.0% |
| Eureka Roadhouse, AK | 0 | 31 | 38.0% |
| Hobart Bay, AK | 0 | 20 | 60.0% |
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