| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 43°F | 68°F | 57°F | 1.9" |
| February | 48°F | 71°F | 61°F | 3.5" |
| March | 52°F | 80°F | 69°F | 6.8" |
| April | 62°F | 88°F | 78°F | 2.1" |
| May | 73°F | 98°F | 88°F | n/a |
| June | 80°F | 105°F | 96°F | 4.2" |
| July | 88°F | 110°F | 101°F | 18.5" |
| August | 84°F | 106°F | 97°F | 4.8" |
| September | 77°F | 102°F | 93°F | n/a |
| October | 64°F | 90°F | 80°F | 3.1" |
| November | 56°F | 83°F | 71°F | n/a |
| December | 41°F | 66°F | 56°F | 14.7" |
| Index | Aztec | Arizona | National |
| Air quality index | 45 | 57 | 42 |
| Pollution index | 2,561,410 | 9,766,019 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 265 |
| Days with moderate air quality | 97 |
| Days w/ poor A.Q. for sensitive groups | 3 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.002% |
| Benzene | 0.050% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.090% |
| Mercury | 0.001% |
| City | Population | Air Quality Index | National Avg. |
| Dateland, AZ | 411 | 45 | 10.0% |
| Aztec, AZ | 0 | 45 | 10.0% |
| 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% |
| Aztec, AZ | 0 | 45 | 10.0% |
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