| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | -4°F | 10°F | 3°F | 0.5" |
| February | 2°F | 17°F | 9°F | 0.5" |
| March | 2°F | 20°F | 11°F | 0.3" |
| April | 21°F | 40°F | 30°F | 0.3" |
| May | 36°F | 56°F | 46°F | 0.9" |
| June | 45°F | 65°F | 55°F | 1.2" |
| July | 49°F | 66°F | 57°F | 2.0" |
| August | 47°F | 63°F | 54°F | 2.8" |
| September | 39°F | 54°F | 46°F | 2.5" |
| October | 27°F | 38°F | 32°F | 2.5" |
| November | 8°F | 20°F | 14°F | 1.3" |
| December | 2°F | 15°F | 8°F | 0.8" |
| Index | Anvik | Alaska | National |
| Air quality index | 31 | 30 | 42 |
| Pollution index | 349,533 | 11,243,194 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 262 |
| Days with moderate air quality | 92 |
| Days w/ poor A.Q. for sensitive groups | 7 |
| Days with unhealthy air quality | 4 |
| 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. |
| Anvik, AK | 85 | 31 | 38.0% |
| City | Population | Air Quality Index | National Avg. |
| Truxton, AZ | 85 | 13 | 74.0% |
| Segundo, CO | 85 | 15 | 70.0% |
| Basco, IL | 85 | 29 | 42.0% |
| Sciota, IL | 85 | 29 | 42.0% |
| Strawn, IL | 85 | 44 | 12.0% |
| Anvik, AK | 85 | 31 | 38.0% |
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