| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 15°F | 42°F | 27°F | 1.6" |
| February | 23°F | 49°F | 35°F | 2.5" |
| March | 26°F | 58°F | 41°F | 2.3" |
| April | 30°F | 61°F | 44°F | 2.8" |
| May | 37°F | 70°F | 54°F | 3.1" |
| June | 39°F | 78°F | 59°F | 1.4" |
| July | 48°F | 93°F | 72°F | 0.3" |
| August | 44°F | 90°F | 68°F | 0.0" |
| September | 34°F | 77°F | 56°F | 1.8" |
| October | 30°F | 66°F | 45°F | 2.6" |
| November | 25°F | 53°F | 36°F | 3.0" |
| December | 22°F | 41°F | 30°F | 3.4" |
| Index | Adin | California | National |
| Air quality index | 29 | 55 | 42 |
| Pollution index | 661,452 | 10,473,190 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 261 |
| Days with moderate air quality | 98 |
| Days w/ poor A.Q. for sensitive groups | 6 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.002% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.020% |
| Mercury | 0.001% |
| City | Population | Air Quality Index | National Avg. |
| Lookout, CA | 50 | 29 | 42.0% |
| Bieber, CA | 145 | 42 | 16.0% |
| Nubieber, CA | 31 | 42 | 16.0% |
| Adin, CA | 209 | 29 | 42.0% |
| City | Population | Air Quality Index | National Avg. |
| Allakaket, AK | 209 | 38 | 24.0% |
| Kaltag, AK | 209 | 38 | 24.0% |
| Valley Home, CA | 209 | 49 | 2.0% |
| Oakville, IA | 209 | 32 | 36.0% |
| Thor, IA | 209 | 37 | 26.0% |
| Adin, CA | 209 | 29 | 42.0% |
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