| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 22°F | 44°F | 32°F | n/a |
| February | 27°F | 51°F | 37°F | n/a |
| March | 32°F | 59°F | 44°F | n/a |
| April | 36°F | 65°F | 50°F | n/a |
| May | 43°F | 72°F | 58°F | n/a |
| June | 54°F | 85°F | 70°F | n/a |
| July | 59°F | 84°F | 70°F | n/a |
| August | 57°F | 81°F | 68°F | n/a |
| September | 51°F | 77°F | 63°F | n/a |
| October | 40°F | 68°F | 53°F | n/a |
| November | 31°F | 57°F | 43°F | n/a |
| December | 24°F | 45°F | 33°F | n/a |
| Index | Canyon Day | Arizona | National |
| Air quality index | 44 | 57 | 42 |
| Pollution index | 3,235,590 | 9,766,019 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 294 |
| Days with moderate air quality | 70 |
| Days w/ poor A.Q. for sensitive groups | 1 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.070% |
| Benzene | 0.050% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.050% |
| Mercury | 0.050% |
| City | Population | Air Quality Index | National Avg. |
| East Fork, AZ | 455 | 44 | 12.0% |
| Whiteriver, AZ | 4,081 | 44 | 12.0% |
| Fort Apache, AZ | 180 | 44 | 12.0% |
| Carrizo, AZ | 202 | 44 | 12.0% |
| Seven Mile, AZ | 1,301 | 44 | 12.0% |
| Canyon Day, AZ | 1,626 | 44 | 12.0% |
| City | Population | Air Quality Index | National Avg. |
| Crystal Falls, MI | 1,626 | 8 | 84.0% |
| Glouster, OH | 1,626 | 25 | 50.0% |
| Three Way, TN | 1,626 | 27 | 46.0% |
| Seymour CDP, WI | 1,626 | 37 | 26.0% |
| Ronceverte, WV | 1,626 | 41 | 18.0% |
| Canyon Day, AZ | 1,626 | 44 | 12.0% |
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